СПОСОБ И УСТРОЙСТВО ДЛЯ ДОПОЛНИТЕЛЬНОЙ ОБРАБОТКИ ЧАСТИЦ, ПЕРЕНОСИМЫХ В ТЕХНОЛОГИЧЕСКОМ ГАЗЕ, А ТАКЖЕ ФИЛЬТР ДЛЯ НИХ

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Изобретение относится к способу и системе для распаковки объектов, изготовленных посредством аддитивного производства с использованием гранулированного материала в рабочем боксе (100). При осуществлении способа объекты (1) после их изготовления распаковывают из неотвержденного гранулированного материала (2), начиная с нахождения объектов (1) и гранулированного материала (2) на платформе (101) бокса (100). Платформа (101) содержит отверстия (101a) для выгрузки гранулированного материала (2), при этом указанные отверстия (101a) открывают с помощью системы управления для выгрузки указанного материала и для отделения объектов (1) от гранулированного материала (2), при этом объекты (1) распаковываются. Для осуществления распаковки обеспечивают управляемый наклон бокса (100) в разных направлениях, при этом отверстия (101a) платформы (101) являются открытыми, для перемещения гранулированного материала (2) и облегчения его выгрузки через указанные отверстия (101a). Технический результат – повышение ...

УСТРОЙСТВО И СПОСОБ ПОСЛОЙНОГО ПОЛУЧЕНИЯ ТРЕХМЕРНОГО ОБЪЕКТА ИЗ ПОРОШКООБРАЗНОГО МАТЕРИАЛА

Способ, посредством которого получают трехмерные объекты с помощью последовательного упрочнения слоев порошкообразного материала в местах, соответствующих поперечному сечению объекта в соответствующем слое. Этот способ осуществляют посредством воздействия лазером или другим источником энергии. В качестве порошкообразного материала используют материал, который содержит старый порошок, оставшийся в качестве неупрочненного порошка при получении одного или нескольких ранее построенных объектов. В способе используют порошок, имеющий вязкость расплава, соответствующую вязкости раствора, равной более 2,1 η rel согласно ISO 307 у полиамида РА 2200. При нанесении слоя механически упрочняют порошкообразный материал. Другой вариант способа для получения трехмерных объектов посредством последовательного упрочнения слоев порошкообразного материала в местах, соответствующих поперечному сечению объекта в соответствующем слое, также осуществляют посредством воздействия лазера или другого источника энергии ...

ИЗБИРАТЕЛЬНОЕ СПЕКАНИЕ СТРУКТУРНО-МОДИФИЦИРОВАННЫХ ПОЛИМЕРОВ

Изобретение относится к способу производства трехмерного изделия из порошка путем избирательного спекания посредством электромагнитного облучения. Порошок содержит полимер или сополимер, который имеет, по меньшей мере, одну из следующих структурных характеристик: (i) по меньшей мере, одну разветвленную группу в основной цени полимера или сополимера, при условии, что в случае использования простых полиарилэфиркетонов (РАЕК) разветвленная группа представляет собой ароматическое структурное звено в основной цепи полимера или сополимера; (ii) модификацию, по меньшей мере, одной концевой группы основной цепи полимера или сополимера; (iii) по меньшей мере, одну объемную группу в основной цепи полимера или сополимера, при условии, что в случае использования простых полиарилэфиркетонов (PAЕK) объемную группу не выбирают из группы. состоящей из фенилена, бифенилена, нафталина и CH- или изопропилиден-связанных ароматических соединений; (iv) но меньшей мере, одну ароматическую группу, нелинейно связывающую ...

СПОСОБ ИЗГОТОВЛЕНИЯ МЕТАЛЛИЧЕСКОГО ИЗДЕЛИЯ ИЗ ПОРОШКОВОГО МАТЕРИАЛА ЦИКЛИЧНЫМ ПОСЛОЙНЫМ ЛАЗЕРНЫМ СИНТЕЗОМ

Изобретение относится к порошковой металлургии, в частности к изготовлению металлических изделий из порошков селективным лазерным спеканием. Наносят слой керамического порошка, проводят селективное спекание на заданных участках слоя и удаляют указанный материал из неспеченных участков. Между спеченными участками керамического слоя наносят слой порошка металла или сплава той же толщины и проводят селективное спекание на этих участках. Цикл повторяют до осуществления полного формирования изделия. При этом керамика образует при спекании оболочку формируемого изделия. После каждого спекания слоя металла или сплава проводят его расплавление и/или расплавление всего объема металла или сплава, а после полного формирования изделия и кристаллизации расплавленного металла или сплава производят удаление керамики. 15 з.п. ф-лы, 2 ил., 1 пр.

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Изобретение относится к области аддитивных технологий, в частности к устройству и способу для изготовления трехмерных изделий. Устройство для изготовления трехмерных изделий содержит носитель, выполненный с возможностью приема множества слоев исходного материала, и блок облучения, выполненный с возможностью генерирования пучка излучения и направления пучка излучения в заданные места верхнего слоя исходного материала для отверждения исходного материала в заданных местах. Блок облучения содержит источник излучения, выполненный с возможностью генерирования пучка излучения, первый блок развертки, выполненный с возможностью приема пучка излучения и развертки пучка излучения по первой области облучения верхнего слоя исходного материала, второй блок развертки, выполненный с возможностью приема пучка излучения и развертки пучка излучения по второй области облучения верхнего слоя исходного материала, и блок переключения, выполненный с возможностью направления пучка излучения, генерируемого источником ...

Устройство для селективного лазерного спекания

Аппарат селективного лазерного спекания SLS состоит из устройства для формирования лазерного излучения, опорной платформы и приводного механизма. Опорная платформа имеет конфигурацию, позволяющую размещение исходных материалов для аддитивного производства объекта, состоящего из множества секций. Устройство для формирования лазерного излучения расположено на опорной платформе и имеет конфигурацию, обеспечивающую нанесение слоев порошкового материала на поверхность каждой секции объекта и их спекание. Приводной механизм располагается под устройством для формирования лазерного излучения и состоит из вертикального движущего механизма и горизонтального движущего механизма. Вертикальный движущий механизм подсоединен к устройству для формирования лазерного излучения и имеет конфигурацию, позволяющую подъем устройства для формирования лазерного излучения по мере нанесения и спекания слоев. Горизонтальный движущий механизм имеет конфигурацию, позволяющую перемещать устройство для формирования лазерного ...

СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛИ ПОСРЕДСТВОМ ВЫБОРОЧНОГО РАСПЛАВЛЕНИЯ ПОРОШКА

Изобретение относится к изготовлению детали посредством выборочного расплавления порошка. Наносят первый слой первого металлического порошка, основным элементом которого является первый металлический элемент. Перемещают второй энергетический пучок по первому слою, при этом энергия, обеспечиваемая вторым пучком, позволяет производить локальное и поверхностное расплавление первого слоя. Затем на первый слой наносят второй слой второго металлического порошка, основным элементом которого является второй металлический элемент, отличный от первого металлического элемента. Перемещают первый энергетический пучок по второму слою, при этом энергия, обеспечиваемая первым пучком, позволяет инициировать экзотермическую реакцию между первым элементом и вторым элементом, причем энергия, выделяемая при такой экзотермической реакции, обеспечивает локальное сплавление вместе первого и второго слоев. Обеспечивается снижение расхода энергии, связанной с генерированием пучков. 9 з.п. ф-лы, 3 ил.

АППАРАТ И СПОСОБ ДЛЯ СВЯЗЫВАНИЯ ПОЗИЦИИ В НАБОРЕ ДАННЫХ КОНСТРУКЦИИ С ПОЗИЦИЕЙ В СЕКЦИИ ПОСТРОЕНИЯ АППАРАТА

Заявленная группа изобретений относится к получению трехмерного изделия, состоящего из основного элемента и послойно изготовленного на нем из порошкообразного материала дополнительного элемента. Устройство содержит секцию построения для размещения в ней основного элемента, содержащего ограничивающую поверхность, облучающий модуль для формирования пучка излучения с возможностью сканирования по заданному полю, измерительный модуль для измерения зависимой от времени интенсивности электромагнитного излучения в позиции пятна пучка излучения, контроллер, выполненный с возможностью связывания измеренной интенсивности электромагнитного излучения с информацией о текущей позиции пучка излучения, определения позиции ограничивающей поверхности по отношению к полю сканирования на основании изменения измеренной интенсивности электромагнитного излучения во времени и на основании информации о позиции, связывания позиции в наборе данных конструкции трехмерного изделия с позицией в секции построения и связывания ...

УСТРОЙСТВО И СПОСОБ ИЗГОТОВЛЕНИЯ ТРЕХМЕРНОГО ИЗДЕЛИЯ

Изобретение относится к области аддитивных технологий, в частности, к устройству и способу для изготовления трехмерных изделий из порошка. Устройство для изготовления трехмерных изделий содержит носитель, выполненный с возможностью приема множества слоев порошка исходного материала, блок облучения, выполненный с возможностью направления луча излучения в заданные места верхнего слоя порошка для его отверждения в заданных местах, технологическую камеру и опорную конструкцию, расположенную вне технологической камеры и поддерживающую блок облучения. Опорная конструкция представляет собой опорную раму, поддерживающую технологическую камеру и блок облучения, который механически отвязан от технологической камеры, при этом термическая деформация технологической камеры из-за технологического тепла внутри технологической камеры не приводит к существенному смещению блока облучения относительно опорной конструкции. Обеспечивается повышение качества получаемого изделия за счет исключения термической ...

Устройство для получения изделий из порошковых материалов

Изобретение относится к порошковой металлургии, в частности к технологии послойного синтеза деталей сложной пространственной конфигурации из мелкодисперсного порошка методом селективного лазерного плавления и/или спекания (СЛП) по компьютерной 3-D модели, и может найти применение в различных отраслях машиностроения, например, для изготовления коррозионностойких, износостойких, жаростойких изделий, деталей и узлов. Устройство для получения изделий из порошковых материалов содержит силовую раму и установленную на ней герметичную камеру. В камере размещено средством нанесения порошкообразного материала в виде установленного с возможностью горизонтального возвратно-поступательного перемещения и формования слоя изделия двойного ножа. Устройство также содержит пирометр, бункер изготовления со встроенными в его стенки нагревателями, бункеры сбора и бункеры подачи порошка с дозирующими валами в каждом. На двойном ноже размещены кварцевые галогенные нагревательные элементы. В герметичной камере ...

СПОСОБ ИЗГОТОВЛЕНИЯ ТРЕХМЕРНЫХ ОБЪЕКТОВ ЛАЗЕРНЫМ СПЕКАНИЕМ

... 1. Способ изготовления трехмерных объектов, согласно которому объект формируют отверждением порошкового материала слой за слоем в местоположениях для каждого слоя, соответствующих объекту, ! в котором ИК излучение, испускаемое от нанесенного порошкового слоя, локально обнаруживают таким образом, что получают картину ИК излучения, ! отличающийся тем, что дефекты и/или геометрические нерегулярности нанесенного порошкового слоя определяют на основе картины ИК излучения. ! 2. Способ по п.1, в котором указанное отверждение выполняют воздействием электромагнитного излучения или излучения частиц на порошковый слой. ! 3. Способ по п.1, в котором дефекты и/или геометрические нерегулярности исправляют нанесением второго корректирующего слоя или в ходе процесса формирования объекта. ! 4. Способ по п.1, в котором во время или после селективного отверждения слоя оценивают полноту и правильное положение отвержденных зон указанного слоя. ! 5. Способ по п.1, в котором присутствие нестационарных газовых ...

АДДИТИВНОЕ ИЗГОТОВЛЕНИЕ ДЕТАЛИ ТУРБИНЫ С ИСПОЛЬЗОВАНИЕМ НЕСКОЛЬКИХ МАТЕРИАЛОВ

... 1. Способ изготовления детали, включающий этапы, на которыхнаносят множество смежных порошковых слоев из соответствующих различных материалов на рабочую поверхность по формам соответствующих областей, которые представляют соответствующий конечный материал в заданной плоскости сечения многокомпонентной детали, при этомперекрывают по меньшей мере два смежных порошковых слоя с образованием зоны постепенного перехода материала между указанными по меньшей мере двумя смежными порошковыми слоями,воздействуют первым лазерным излучением с первой интенсивностью на первый порошковый слой и вторым лазерным излучением со второй интенсивностью, отличной от первой интенсивности, на второй порошковый слой, иповторяют этапы от указанного этапа нанесения, для последующих плоскостей сечения детали, с тем чтобы изготовить деталь.2. Способ по п. 1, в котором первый порошковый слой содержит металл, второй порошковый слой содержит керамику, создающую тепловой барьер, при этом лазерное излучение с первой энергией ...

СПОСОБ ИЗГОТОВЛЕНИЯ АСИММЕТРИЧНОГО КОМПОНЕНТА С ПРИМЕНЕНИЕМ АДДИТИВНОГО ПРОИЗВОДСТВА

СПОСОБ ПРОИЗВОДСТВА ИЗДЕЛИЯ РУЛОННЫМ ПОРОШКОВЫМ СПЕКАНИЕМ

Способ относится к области порошковой металлургии, в частности к способу послойного изготовления трехмерных объектов посредством порошкового спекания, и может быть использован при изготовлении композиционных изделий для создания модельной оснастки для процессов литья, изделий машиностроения и приборостроения, физических моделей изделий для научных исследований, создаваемых на основе технических данных, полученных посредством систем автоматизированного проектирования. Способ основан на создании изделий с помощью спекания различных порошков или комбинаций порошков, помещенных в перфорируемую, растворимую, сжимаемую ленту в процессе ее перемотки, и обеспечивает создание изделий со сложной структурой под контролем системы сматывания. Технический результат изобретения заключается в увеличении точности и скорости формирования изделий, улучшении их качества, прочности, однородности, уменьшении шероховатости поверхности и стоимости изготовления. 14 з.п. ф-лы, 3 ил.

УСТРОЙСТВО ДЛЯ ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ ПУТЕМ СЕЛЕКТИВНОЙ ПЛАВКИ ПОРОШКА

... 1. Устройство для изготовления детали путем селективной плавки порошка, содержащее емкость (5), дно которой представлено подвижной плитой (6), средства (1, 3, 9) подачи порошка (2) в емкость (5) и средства (10, 11) генерирования и перемещения лазерного пучка (12) или пучка электронов, предусмотренного для осуществления селективной плавки порошка в емкости (5), отличающееся тем, что оно содержит средства (24) напряжения подвижной плиты (6), по меньшей мере, в направлении (X, Y), параллельном плоскости плиты (6).2. Устройство по п. 1, отличающееся тем, что средства напряжения предусмотрены для того, чтобы подвижная плита (6) подвергалась усилиям напряжения, ориентированным в двух перпендикулярных направлениях (X, Y).3. Устройство по п. 1, отличающееся тем, что усилия напряжения параллельны двум сторонам подвижной плиты.4. Устройство по п. 1, отличающееся тем, что средства напряжения содержат, по меньшей мере, один цилиндр (24), прилагающий усилие на уровне, по меньшей мере, края (20, 21) ...

СПОСОБ И УСТРОЙСТВО ДЛЯ АДДИТИВНОГО ПРОИЗВОДСТВА С ОБНАРУЖЕНИЕМ В РЕАЛЬНОМ ВРЕМЕНИ ДЕФОРМАЦИИ ПОВЕРХНОСТИ СЛОЯ ПОРОШКА

Способ и устройство для аддитивного производства с обнаружением в реальном времени деформации поверхности слоя порошка относятся к области техники аддитивного производства. Способ включает управление лучом (5) для растрового сканирования поверхности слоя порошка и формирование растровых линий, управление устройством (3), формирующим изображения, для формирования изображения растровых линий и определение того, деформированы ли растровые линии или нет в соответствии с результатом формирования изображения растровых линий, и остановку аддитивного производства, если растровые линии деформированы и уровень деформации превышает допустимое значение. Техническим результатом является повышение точности обнаружения деформации поверхности слоя порошка. 2 н. и 7 з.п. ф-лы, 5 ил.

СПОСОБ ИДЕНТИФИКАЦИИ ПОРОШКОВ, ПРИМЕНЯЕМЫХ В ЛАЗЕРНОМ СПЕКАНИИ

... 1. Способ маркировки изготовленных методом послойного производства изделий включает в себя следующие этапы:смешивание применяемого в качестве конструкционного материала порошка, по меньшей мере, с одной солью одного редкоземельного металла, при этом соль обладает свойством проявлять люминесценцию при облучении фотонами одной длины волны вне видимого спектра или потоком частиц ииспользование порошка в качестве конструкционного материала в технологии изготовления трехмерного объекта с помощью послойного нанесения и закрепления порошка на участках, в каждом слое соответствующих поперечному сечению изготовляемого объекта; при этом закрепление производят посредством воздействия лазера или другого источника энергии на порошкообразный материал или посредством селективного нанесения связующего.2. Способ по п.1, в котором добавляют несколько различных солей редкоземельных элементов, спектральные излучения которых при люминесценции отличаются друг от друга.3. Способ по п.1, в котором добавляемая ...

Разрушаемая поддерживающая структура для аддитивного производства

СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛИ ИЗ ЭЛЕКТРОПРОВОДЯЩЕГО МАТЕРИАЛА ПОСРЕДСТВОМ АДДИТИВНОГО ИЗГОТОВЛЕНИЯ

УСТРОЙСТВО ДЛЯ ИЗМЕНЕНИЯ ФОРМЫ СТРУИ ТЕКУЧИХ ПРОДУКТОВ, ПРИМЕНЕНИЕ ДАННОГО УСТРОЙСТВА И СПОСОБ ИЗГОТОВЛЕНИЯ ДАННОГО УСТРОЙСТВА

СПОСОБ ПЛАВЛЕНИЯ ПОРОШКА, ВКЛЮЧАЮЩИЙ НАГРЕВ ОБЛАСТИ, ПРИЛЕГАЮЩЕЙ К ВАННЕ

СПОСОБ ИЗГОТОВЛЕНИЯ МЕТАЛЛИЧЕСКОГО ИЗДЕЛИЯ ИЗ ПОРОШКОВОГО МАТЕРИАЛА И УСТАНОВКА ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

... 1. Способ изготовления металлического изделия из порошкового материала путем цикличного лазерного послойного синтеза, включающий следующую последовательность формирования слоев за цикл: нанесение слоя первого порошкового материала и его селективное спекание на заданных участках слоя, удаление первого порошкового материала из неспеченных участков, нанесение, в пространство между спеченными участками слоя первого порошкового материала, слоя второго порошкового материала той же толщины и его селективное спекание на этих участках, повторение указанных циклов до осуществления полного формирования изделия, отличающийся тем, что в качестве первого порошкового материала используется керамика, образующая, при спекании, оболочку формируемого изделия, а в качестве второго порошкового материала используется порошок из металла или сплава формируемого изделия, причем после каждого спекания слоя металла или сплава производят его расплавление и/или расплавление всего его объема, а после полного формирования ...

СПОСОБ И СИСТЕМЫ ДЛЯ ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ В КОГЕРЕНТНОМ ИЗЛУЧЕНИИ И УПРАВЛЕНИЯ С ОБРАТНОЙ СВЯЗЬЮ ДЛЯ МОДИФИКАЦИИ МАТЕРИАЛОВ

УСТРОЙСТВО И МЕТОД АДДИТИВНОГО ПРОИЗВОДСТВА ТРЕХМЕРНЫХ ОБЪЕКТОВ

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРОИЗВОДСТВА С ПОМОЩЬЮ АДДИТИВНЫХ ТЕХНОЛОГИЙ

Beschichter und Beschichteraufhängung

Beschichtereinheit (200, 300, 400) für eine Anlage (100) zur Herstellung eines dreidimensionalen Werkstücks mittels eines generativen Schichtbauverfahrens, wobei die Beschichtereinheit (200, 300, 400) umfasst:einen Beschichter (118, 202, 302, 600), mit dem Pulvermaterial (111, 608) auf einen Träger (112) der Anlage (100) und/oder eine Pulverschicht (110) auf dem Träger (112) auftragbar ist, undeine Beschichteraufhängung (120a, 120b), die mit dem Beschichter (118, 202, 302, 600) gekoppelt oder verbunden ist, wobei der Beschichter (118, 202, 302, 600) durch die Beschichteraufhängung (120a, 120b) über den Träger (112) und/oder die Pulverschicht (110) verfahrbar ist, undwobei mindestens ein Teil der Beschichteraufhängung (120a, 120b) als gasdurchströmbare Struktur ausgebildet ist.

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG DREIDIMENSIONALER KÖRPER

Device for creation of three-dimensional shape by hardening of layers with electromagnetic beams, comprising extremely solid lid

The unit comprises a work-piece carrying element, a coating device, a measuring device, and a radiating device accommodated inside a housing (31). The processing space is located inside a container (3) moving on a carriage (22) guided on rails (21) inside the housing (31) and closed with a lid (14) to be locked (15) during the creation process. At least one scanner (13) of the radiation unit is directly fixed to the upper surface of the lid (14).

Vorrichtung und Verfahren zur generativen Herstellung zumindest eines Bauteilbereichs eines Bauteils

Die Erfindung betrifft eine Vorrichtung (10) zur generativen Herstellung zumindest eines Bauteilbereichs eines Bauteils (12), insbesondere eines Bauteils (12) einer Strömungsmaschine. Die Vorrichtung (10) kann dabei mindestens einen Beschichter (14) zum Auftrag von mindestens einer Pulverschicht eines Bauteilwerkstoffs auf mindestens eine Aufbau- und Fügezone mindestens einer absenkbaren Bauteilplattform (16) umfassen, wobei der Beschichter (14) relativ zu der Bauteilplattform (16) bewegbar ist. Zudem umfasst die Vorrichtung (10) mindestens eine Absaugvorrichtung (36) zur Absaugung von Prozessabgasen und/oder -partikeln. Dabei umfasst der Beschichter (14) mindestens einen Absaugkanal (22) oder mindestens ein Absaugrohr mit mindestens einer in Richtung der Bauteilplattform (16) ausgerichteten Absaugöffnung (24), wobei der Absaugkanal (22) oder das Absaugrohr derart angeordnet sind, dass bei einer vordefinierten Stillstandsposition des Beschichters (14) außerhalb der Bauteilplattform (16) ...

Vorrichtung zur generativen Herstellung eines Bauteils

Die Erfindung betrifft eine Vorrichtung (10) zur generativen Herstellung eines Bauteils (12), umfassend mindestens einen Beschichter (14) zum Erzeugen einer Pulverschicht (16) auf einer Bauplattform (18), mindestens eine Strahlungsquelle (20), insbesondere einen Laser, zum Erzeugen eines Hochenergiestrahls (24), mittels welchem die Pulverschicht (16) in einer Baufläche (22) lokal zu einer Bauteilschicht (30) verschmelzbar und/oder versinterbar ist, mindestens eine Ablenkeinrichtung (26), mittels welcher der Hochenergiestrahl (24) auf unterschiedliche Bereiche der Pulverschicht (16) ablenkbar und auf die Baufläche (22) fokussierbar ist, mindestens ein Messsystem (28), mittels welchem eine Querschnittsgeometrie des Hochenergiestrahls (24) auf der Pulverschicht (16) und/oder der Bauteilschicht (30) ermittelbar ist, und mindestens eine Ausgleichseinrichtung (32). Die Ausgleichseinrichtung (32) ist dazu ausgebildet, anhand der Querschnittsgeometrie des Hochenergiestrahls (24) eine Fokusfläche ...

Verfahren und Vorrichtung zum Herstellen von 3D-Formteilen mit Schichtaufbautechnik

Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Herstellen dreidimensionaler Modelle mittels Schichtaufbautechnik im High Speed Sintering Verfahren.

Verfahren zur Herstellung einer Verstärkung für Flanschstrukturen aus Faserverbundwerkstoff

Die Erfindung betrifft ein Verfahren zur Herstellung einer Verstärkung für Flanschstrukturen aus Faserverbundwerkstoff, wobei ein speziell, entsprechend seiner Funktion gestaltetes Flanschverstärkungselement in Faserverbundbauweise hergestellt und zur Verstärkung um die Flanschstruktur geformt wird. Die Anwendung des Verfahrens bietet sich besonders für eine Verstärkung von Flanschbereichen an einem Faserverbund-Hohlkörper, beispielsweise von Gehäusen und/oder Strukturen aus dem Bereich der Luftfahrt, an. Das Flanschverstärkungselement ist gekennzeichnet durch Verstärkungsfaserstränge, deren Orientierungen die am Flansch bzw. den Flanschbohrungen angreifenden Kräfte bestmöglich aufnehmen können. Das Element wird trocken, d. h. vor dem Harzinjektionsprozess, hergestellt und kann dadurch gut in den Prozess der Herstellung von Flanschen in Faserverbundbauweise integriert werden.

Vorrichtung zur Herstellung dreidimensionaler Objekte

Die Erfindung betrifft eine Vorrichtung 1 zur Herstellung dreidimensionaler Objekte 2 durch sukzessives Verfestigen von Schichten eines pulverförmigen, mittels Strahlung, insbesondere elektromagnetischer Strahlung oder Teilchenstrahlung verfestigbaren Aufbaumaterials 3 an den dem jeweiligen Querschnitt des Objektes entsprechenden Stellen, insbesondere SLM- oder SLS-Vorrichtung, mit einem Gehäuse 7, in welchem eine Prozesskammer 8 und wenigstens eine Baukammer 5, 6 angeordnet sind, mit einer Tragevorrichtung 9 zum Tragen des Objektes 2 innerhalb der Baukammer 5, 6, einer Dosierkammer 4 zum Bevorraten des Aufbaumaterials 3, einer Beschichtungsvorrichtung 10 zum Aufbringen des Aufbaumaterials 3 und einer Bestrahlungsvorrichtung 11 zum Bestrahlen der aufgetragenen Schichten des Aufbaumaterials 3, wobei die Beschichtungsvorrichtung 10 wenigstens über der Baukammer 5, 6 hin und her verfahrbar gelagert ist, wozu die Beschichtungsvorrichtung 10 wenigstens einseitig in einer Führungseinrichtung ...

DREIDIMENSIONAL-ADDITIVE FERTIGUNGSVORRICHTUNG, DREIDIMENSIONAL-ADDITIVES FERTIGUNGSVERFAHREN UND DREIDIMENSIONAL-ADDITIV HERGESTELLTES PRODUKT

Eine dreidimensional-additive Fertigungsvorrichtung emittiert einen Strahl zu einem Pulverbett, das durch Auftragen eines Pulvers auf eine Grundplatte gebildet wird, um das Pulverbett selektiv zu härten. Ein Sensor erfasst die Form oder die Temperatur einer Oberfläche des Pulverbetts oder einer Modellierfläche. Ein Fehler beim Auftragen des Pulvers oder ein Fehler bei der Emission des Strahls wird auf der Grundlage des Messergebnisses korrigiert, vor dem Abschluss der Bildung einer nächsten Schicht.

Vorrichtung zur Verkleinerung des unteren Bauraums einer Lasersinteranlage

Vorrichtung zur Verkleinerung des unteren Bauraums einer Lasersinteranlage, dadurch gekennzeichnet, dass in eine bestehende Lasersinteranlage zusätzliche oder neue Seitenwände in den unteren Bauraum eingebracht werden.

VERFAHREN ZUR HERSTELLUNG VON DREIDIMENSIONALEN SINTER-WERKSTÜCKEN

Verfahren für die additive Herstellung eines Bauteils und Vorrichtung

Die vorliegende Erfindung betrifft ein Verfahren für die additive Herstellung eines Bauteils (10) umfassend das Erfassen einer Kantenkontur (11) einer aus einem Pulverbett (1) additiv aufgebauten oder aufzubauenden Schicht (12) für das Bauteil (10) auf einer Bauplattform (2) und das Ausrichten einer Beschichterrichtung (BR) für eine neu aufzubringende Pulverschicht relativ zu der erfassten Kantenkontur (11) derart, dass eine Kante (11) der additiv aufgebauten Schicht (12) einen von 90° verschiedenen Winkel mit der Beschichterrichtung (BR) einschließt.

Verfahren zur Herstellung einer dreidimensionalen Struktur und Vorrichtung hierzu

Die Erfindung betrifft ein Verfahren zur Herstellung einer dreidimensionalen Gesamtstruktur durch Sintern eines Sinterpulvers, wobei sequentiell in jeweils nacheinander aufgebrachten Schichten aus Sinterpulver jeweils eine Teilstruktur gebildet wird. Das Verfahren umfasst die Schritte: Bereitstellen einer Schicht von Sinterpulver, räumlich selektives Einstrahlen von Energie in die Schicht zum räumlich selektiven Aufschmelzen des Sinterpulvers zur Definition der jeweiligen Teilstruktur, wobei zum räumlich selektiven Einstrahlen der Energie eine Strahlungsquellengruppe entlang einer Scankurve über die jeweils bereitgestellte Schicht gescannt wird, wobei die Strahlungsquellengruppe eine Mehrzahl von relativ zueinander fest angeordneten Strahlungsquellen umfasst, deren Strahlungsabgabe individuell zeitabhängig angesteuert wird. Die Erfindung betrifft auch eine Vorrichtung zur Herstellung einer dreidimensionalen Gesamtstruktur durch Sintern eines Sinterpulvers.

Surfboard aus generativen Fertigungstechniken mit integriertem organischen bzw. den mechanischen Anforderungen optimierten Kern

Surfboard aus generativen Fertigungstechniken mit integriertem organischen bzw. den mechanischen Anforderungen optimierten Kern dadurch gekennzeichnet, dass, 1. Surfboards mithilfe der generativen Fertigungstechnik, wie dem Selektiven Lasersintern (SLS) hergestellt werden; 2. Surfboards über einen den mechanischen Anforderungen optimierten organisch strukturierten Kern verfügen, der mithilfe der generativen Fertigungstechniken, wie bspw. dem Selektiven Lasersintern hergestellt wird; 3. Surfboards aus umweltfreundlichen Materialien bspw. lasergesintert werden.

Erzeugen dreidimensionaler Objekte

Ein dreidimensionales Objekt kann erzeugt werden. Ein Steuerungselement kann vorgesehen sein, das eine Energiequelle so steuert, dass diese einer Schicht von Baumaterial auf einem Trägerelement oder einer vorhergehenden Schicht Energie zuführt, um eine Portion der Schicht dazu zu bringen, zu verschmelzen und sich zu verfestigen, um einen Abschnitt des dreidimensionalen Objekts zu bilden. Ein Strahlungssensor kann vorgesehen sein, um die Absorbanz oder den Glanz der Schicht zu messen. Das Steuerungselement kann dazu dienen, vom Strahlungssensor Daten zu empfangen, welche die gemessene Absorbanz oder den gemessenen Glanz der Schicht darstellen. Die gemessene Absorbanz oder der gemessene Glanz können positiv mit einem Verfestigungsgrad in der Schicht korrelieren. Das Steuerungselement kann dazu dienen, die Vorrichtung so zu steuern, dass ein Prozessparameter modifiziert wird, wenn die gemessene Absorbanz oder der Glanz einen inkorrekten Verfestigungsgrad eines Teils der Schicht anzeigt.

Schichtauftragsvorrichtung zum elektrostatischen Schichtauftrag eines pulverförmigen Werkstoffes sowie Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes

Eine Vorrichtung zum Auftragen von Pulver auf eine Auftragsoberfläche weist einen Pulverbehälter (35) und eine Spannungsquelle (32) zum Anlegen einer Spannung zwischen Pulverbehälter und Auftragsoberfläche auf, wobei der Pulverbehälter (35) zumindest teilweise aus einem leitenden Material besteht und der Pulverbehälter (35) bei anliegender Spannung an seiner zu der Auftragsoberfläche gerichteten Seite eine Öffnung (35a) aufweist oder vollkommen offen ist.

Baubereichsbegrenzung einer Rapid-Prototyping-Anlage

Anlage (100) zum schichtweisen Aufbau eines Formkörpers durch Ausbilden übereinander liegender Schichten von Baumaterial, aufweisend ein Partikelmaterial, auf einem Baufeld und durch selektives Verfestigen eines Teilbereichs der jeweiligen Baumaterial-Schicht vor dem Ausbilden der nächstfolgenden Schicht, aufweisend eine Baubox (200) mit einer Vorderwand (220), einer Rückwand und zwei Seitenwänden (224, 226), welche einen nach oben offenen Bauboxinnenraum begrenzen, in welchem eine höhenverstellbare Bauplattform (210) aufgenommen ist und von dem über der Bauplattform (210) ein Baubereich definiert wird, in dem der Formkörper aufgebaut werden kann, wenn sich die Baubox (200) in einer Bauposition befindet, in welcher die Baubox (200) zum Aufbauen des Formkörpers in dem Baurahmen (150) der Anlage (100) angeordnet ist, und eine erste anlagenfeste Begrenzungsplatte (158), die eine horizontale Oberseite aufweist, von welcher entlang einer ersten Bauboxwand (224) der Bauboxwände eine den Baubereich ...

Vorrichtung zur Herstellung und/oder Bearbeitung von Bauteilen aus Pulverteilchen

Vorrichtung (1) zum Herstellen und/oder Bearbeiten von Bauteilen (2) aus Pulverteilchen (3), insbesondere Sinter-, Abtrag-, Beschriftungs- oder Oberflächenverdichtungs- und/oder Glättungsvorrichtung, wobei in einem Bauraum (4) der Vorrichtung (1) eine Werkstückplattform (5) angeordnet ist, auf welcher die Pulverteilchen (3) und/oder das Bauteil (2) gelagert sind und über welcher ein optisches Ausgangselement vorgesehen ist, durch welches der Strahl (7) einer Energiequelle, insbesondere eines Lasers eingekoppelt wird, der auf Bereiche der Schicht (8) der Pulverteilchen (3) oder des entstehenden oder fertigen Bauteils (2) fokussierbar ist, sowie im Umfeld des Bauraums (4) eine Dosierkammer (9) angeordnet ist, in welcher Pulverteilchen (3) bevorratet und aus welcher diese in den Bauraum (2) durch eine Dosiervorrichtung (10), insbesondere eine Dosierrakeleinheit transportiert werden und am Bauraum (4) eine Pulverabführeinrichtung (11) angeordnet ist, wobei die Pulverabführeinrichtung (11) mindestens ...

Beschichter zum Auftragen einer Schicht eines pulverförmigen Aufbaumaterials in einer Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts

Es wird ein Beschichter (27) zum Auftragen einer Schicht eines pulverförmigen Aufbaumaterials in einer Vorrichtung (1) zum Herstellen eines dreidimensionalen Objekts durch schichtweises Verfestigen eines Aufbaumaterials an den dem Objekt entsprechenden Stellen in den jeweiligen Schichten bereitgestellt. Es sind ein Beschichterelement (61), das das pulverförmige Aufbaumaterial in Form einer Schicht aufträgt, und ein Antriebsmechanismus (59), der das Beschichterelement (61) zum Auftragen der Schicht des Aufbaumaterials über eine Bauebene (11) bewegt, vorgesehen. Der Antriebsmechanismus (59) weist ein Antriebs-Kolben-Zylinder-System (69) und ein Brems-Kolben-Zylinder-System (70) auf.

Pulvermodul für eine Vorrichtung zur additiven Herstellung dreidimensionaler Objekte

Pulvermodul (1) für eine Vorrichtung zur additiven Herstellung dreidimensionaler Objekte, umfassend eine einen mit pulverförmigem Baumaterial befüllbaren Pulverraum (3) begrenzende Pulverkammer (2), eine in dem Pulverraum (3) angeordnete, den Pulverraum (3) bodenseitig begrenzende, relativ zu der Pulverkammer (2) bewegbar gelagerte Trageinrichtung (4) sowie eine Positionserfassungseinrichtung (6), welche zur Erfassung der Position der Trageinrichtung (4) eingerichtet ist, wobei die Positionserfassungseinrichtung (6) als Seilzuggeber ausgebildet ist oder wenigstens einen solchen umfasst.

Verfahren zur Herstellung von dreidimensionalen Bauteilen mit einem pulverbettbasierten Strahlschmelzverfahren

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von dreidimensionalen Bauteilen durch schichtweises Aufschmelzen eines pulverförmigen Werkstoffes mit energetischer Strahlung. Bei dem Verfahren erfolgt der Aufbau der Bauteile auf einer oder mehreren Bauplattformen mit einer Belichtungseinrichtung in mehreren Belichtungsschritten, in denen jeweils ein oder mehrere Bereiche einer Schicht des pulverförmigen Werkstoffes mit der energetischen Strahlung belichtet werden, um den oder die Bereiche der Schicht aufzuschmelzen. Die Belichtungseinrichtung und die Bauplattform werden während des Belichtungsschrittes relativ zueinander translatorisch bewegt. Das Verfahren zeichnet sich dadurch aus, dass die Relativgeschwindigkeit der Bewegung für jede Schicht in Abhängigkeit von der jeweils mit der Belichtungseinrichtung zu belichtenden Fläche der Schicht gewählt wird. Damit können die Produktivität und Effizienz der Fertigung vor allem bei der kontinuierlichen oder parallelen Fertigung ...

Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts

Ein Verfahren zum Herstellen eines dreidimensionalen Objekts (2) durch schichtweises Aufbringen und selektives Verfestigen eines pulverförmigen Aufbaumaterials (13) in einer Vorrichtung (1) enthält die Schritte: Aufbringen einer Pulverschicht (31, 32) des pulverförmigen Aufbaumaterials (13) auf ein Baufeld auf einer Auftragsfläche (10) der Vorrichtung (1) mittels eines sich in einer Bewegungsrichtung (B1, B2) über die Auftragsfläche bewegenden Beschichters (14), selektives Verfestigen der aufgebrachten Pulverschicht (31, 32) an Stellen, die einem Querschnitt des herzustellenden Objekts (2) entsprechen, und Wiederholen der Schritte des Aufbringens und des selektiven Verfestigens, bis das Objekt (2) fertiggestellt ist. Dabei wird zumindest eine Anzahl ausgewählter Schritte des Aufbringens der Pulverschicht dergestalt durchgeführt, dass eine Höhe der aufgebrachten Pulverschicht (31, 32) zumindest über einen Abschnitt der Pulverschicht hinweg entlang der Bewegungsrichtung (B1, B2) des Beschichters ...

Verfahren und Vorrichtung zum Herstellen dreidimensionaler Objekte durch selektives Verfestigen eines schichtweise aufgebrachten Aufbaumaterials

Die Erfindung betrifft ein Vorrichtung und eine Vorrichtung zum Herstellen von dreidimensionalen Objekten (12) durch selektives Verfestigen eines schichtweise aufgebrachten Aufbaumaterials mittels einer auf das Aufbaumaterial einwirkenden Strahles (30), mit zumindest einer Prozesskammer (16), welche zumindest eine in einer XY-Ebene angeordnete Aufbauplattform (17) aufweist, auf welcher das dreidimensionale Objekt (12) erzeugt wird, mit einer Strahlungsquelle (29) zur Erzeugung des Strahls (30) und zumindest einem Strahlführungselement (33) zum Führen und Ablenken des Strahls (30) auf das zu verfestigende Aufbaumaterial und mit einer Prozessunterstützungsvorrichtung (21), welche oberhalb der Aufbauplattform (17) zumindest in Richtung der XY-Ebene verfahrbar ist, wobei die Prozessunterstützungsvorrichtung (21) ein erstes und zweites Modul (25, 26) mit einem dazwischen liegend angeordneten Strahlführungsabschnitt (27) für den auf die Aufbauplattform (17) gerichteten Strahl (30) aufweist und ...

Bauplatten mit Leitungen für additive Fertigungssysteme und Verfahren zum Bauen von Komponenten auf Bauplatten

Es sind Bauplatten (100) für additive Fertigungssystem (900) offenbart. Die Bauplatten (100) der additiven Fertigungssysteme (900) können einen Körper (102) enthalten, der eine Bauoberfläche (104) und eine der Bauoberfläche (104) gegenüberliegend positionierte untere Oberfläche (106) enthält. Die Bauplatten (100) können ferner einen ersten Leitungskanal (108A) enthalten, der durch den Körper (102) hindurch ausgebildet ist und sich zwischen der Bauoberfläche (104) und der unteren Oberfläche (106) erstreckt. Der erste Leitungskanal (108A) kann eingerichtet sein, um mit einer ersten Durchlassöffnung (22) in Fluidverbindung zu stehen, die durch eine Oberfläche (24) einer ersten Komponente (10) ausgebildet ist, die auf der Bauoberfläche (104) des Körpers (102) der Bauplatten (100) gebaut werden kann.

SYSTEM UND VERFAHREN ZUM KALIBRIEREN EINES SCHMELZBADÜBERWACHUNGSSYSTEMS EINER ADDITIVENFERTIGUNGSMASCHINE

Ein System und Verfahren zum Kalibrieren eines Schmelzbadüberwachungssystems (200) einer additiven Fertigungsmaschine (100) umfassen das Installieren eines Kalibrierungssystems (230) an der Maschine (100) und das Ausführen eines Kalibrierprozesses. Insbesondere umfasst das Kalibrierungssystem (230) eine Kalibrierungsplattform (232), die an einer Aufbauplattform (110) der additiven Fertigungsmaschine (100) abnehmbar montiert ist und kalibrierte elektromagnetische Energiequellen (240) aufweist, die daran montiert sind, um ein Messnormal zu definieren. Die erzeugte elektromagnetische Energie wird durch das Schmelzbadüberwachungssystem (200) gemessen und mit dem bekannten Messnormal verglichen, um zu bestimmen, ob Systemjustierungen die Prozesstoleranzen oder die Einheitlichkeit verbessern würden.

Stereo-lithographic powder processing to make objects including tools, prototypes and molds employs vacuum processing- and storage chambers with window admitting energetic radiation

A vacuum processing chamber (2) integrates two or more part-chambers. The first (3) is for construction, the second (4) for powder storage. The cover (5) is fixed, or moves, with respect to the processing chamber. Its window (6) allows introduction of energetic radiation. There is a scraper (not shown) high in the chamber, passing over the cross sections of the part-chambers. Bases (9) of the part chambers move relative to the cover plate. Above the window there is an energetic radiation transmitter, detector or controller. Moving components are each coupled to a drive. An Independent claim is included for the method, which forms objects by layered construction from powders, using a vacuum and heat source, with an energetic radiation transmitter. Vacuum dries the powder, preventing chemical reaction. Non-porous layers are produced, assisting thermal conduction from construction- to the processing chamber. An additional heat source may be used for tempering of the construction chamber and ...

Vorrichtung und Verfahren zur generativen Fertigung

Die Erfindung betrifft eine Vorrichtung (1) zur generativen Fertigung eines Bauteils, insbesondere zur schichtweisen generativen Fertigung eines Bauteils (2), welches auf eine Grundplatte (4) gedruckt wird. Die Grundplatte (4) bildet eine Anbindungsfläche (17) zum Auftragen und Verdichten von Pulver ausbildet, um das Bauteil (2) zu fertigen und umfasst mehrere Bleche (3), wobei die Bleche (3) derart geformt und nebeneinander angeordnet sind, dass die Anbindungsfläche (17) der Grundplatte (4) durch Seitenflächen (16) der Bleche (3) ausgebildet wird. Weiterhin betrifft die Erfindung Verfahren unter Verwendung der Vorrichtung (1), wobei eine Opferschicht (21) und/oder das Bauteil (2) erzeugt werden und anschließend ein einzelnes Abtrennen der Bleche (3) von der Opferschicht (21) bzw. dem Bauteil (2) erfolgt.

System und Verfahren zur Überwachung der Fertigungsgenauigkeit bei der additiven Herstellung dreidimensionaler Bauteile

System zur Überwachung der Fertigungsgenauigkeit bei der additiven Herstellung dreidimensionaler Bauteile durch Detektion von Werkstoffparametern, bei demein kombiniertes Beleuchtungs- und Detektionselement (12), das mit einem zweidimensionalen Detektorarray (1) und mindestens einer Laserstrahlungsquelle (4), mit der elektromagnetische Strahlung auf einen Bereich eines pulverförmigen oder in pastöser Form vorliegenden Werkstoffs, mit dem zumindest ein Bereich eines dreidimensionalen Bauteils infolge eines lokal definierten Energieeintrags hergestellt wird, gerichtet ist unddas Detektorarray (1) so angeordnet und ausgebildet ist, dass in/an der von der Laserstrahlungsquelle (4) bestrahlten Oberfläche auftretende Speckle ortsaufgelöst detektierbar sind; wobeidie mit dem Detektorarray (1) ortsaufgelöst erfassten Speckle-Signale einer elektronischen Auswerte- und Steuerschaltung (3) zuführbar sind unddie elektronische Auswerte- und Steuerschaltung (3) an eine elektronische Steuer- und Regeleinrichtung ...

3D-Druckvorrichtung mit vorteilhafter Bauraumgeometrie

Die Erfindung betrifft eine 3D-Druckvorrichtung mit vorteilhafter Bauraumgeometrie.

Anlage mit einer Werkstückerzeugungssektion

Anlage (10) mit einer Werkstückerzeugungssektion (12) zur Herstellung von Werkstücken durch Beaufschlagen von Rohstoffpulverschichten mit elektromagnetischer Strahlung oder Teilchenstrahlung, die eine Bestrahlungseinrichtung (14) sowie eine gegenüber der Umgebungsatmosphäre abdichtbare Prozesskammer (16) mit einem Träger (18) zur Aufnahme eines Rohstoffpulvers sowie eines durch ein generatives Schichtbauverfahren aus dem Rohstoffpulver hergestellten Werkstücks (20) umfasst, wobei der Träger (18) mit zunehmender Bauhöhe eines auf dem Träger (18) erzeugten Werkstücks (20) relativ zu der Prozesskammer (16) in eine Baukammer (22) verschiebbar ist, dadurch gekennzeichnet, dass die Baukammer (22) im gegenüber der Umgebungsatmosphäre abgedichteten Zustand aus einer Betriebsposition, in der eine auf den Träger (18) aufgebrachte Rohstoffpulverschicht mittels der Bestrahlungseinrichtung (14) mit elektromagnetischer Strahlung oder Teilchenstrahlung beaufschlagbar ist, in eine Wechselposition außerhalb ...

Vorrichtung zum Herstellen eines Objektes mittels Stereolithographie

Vorrichtung zur aufeinander folgenden Herstellung von Formkörpern durch schichtweises Aufbauen aus Werkstoffpulver

Vorgeschlagen wird eine Vorrichtung zur Herstellung von Formkörpern (23) durch schichtweises Aufbauen aus Werkstoffpulver durch ortsselektives Verfestigen des Pulvers zu zusammenhängenden Bereichen nach Maßgabe von Geometriebeschreibungsdaten des Formkörpers (23), umfassend einen Prozessraum (9) mit einem Prozessraumboden, der eine Basisebene (11) und eine relativ dazu mittels einer steuerbaren Antriebseinheit längs einer vertikalen Bauplattformachse gesteuert höhenverstellbare Bauplattform (13), mehrere aufeinander gestapelte Substratplatten (25), die auf der Bauplattform (13) angeordnet sind, eine Pulverschichtenpräparierungseinrichtung zur Präparierung einer jeweiligen nachfolgend ortsselektiv zu verfestigenden Pulverschicht (21) auf der obersten der gestapelten Substratplatten (25), eine Pulververfestigungseinrichtung, die zum ortsselektiven Verfestigen von Pulver der jeweils zuletzt auf der obersten der gestapelten Substratplatten (25) präparierten Pulverschicht (21) aktivierbar ist ...

Verfahren zum Formen eines Schallkanals einer Hörvorrichtung

Geformte Schläuche für Hörgeräte und andere Hörvorrichtungen sollen kostengünstiger hergestellt werden. Hierzu ist vorgesehen, eine Biegeform (1) mit Hilfe eines Rapid-Prototyping-Verfahrens zu erzeugen. Ein ungeformter Schlauch (3) wird in die Biegeform (1) eingelegt. Daraufhin wird die Biegeform (1) einschließlich des eingelegten Schlauchs (3) mit Wärme beaufschlagt, so dass der Schlauch (3) dauerhaft nach dem Abkühlen die von der Biegeform vorgegebene Gestalt annimmt. Das Rapid-Prototyping ermöglicht es, rasch und ohne hohen Aufwand eine Biegeform für unterschiedlichste Schlauchformen herzustellen. Damit ist es nicht mehr nötig, die Schläuche von Hand zu biegen, wodurch letztlich der Automatisierungsgrad gesteigert werden kann.

Verfahren zur Herstellung von dreidimensionalen Werkstücken in einer Laser-Materialbearbeitungsanlage oder einer Stereolitographieanlage

Verfahren zur Herstellung von dreidimensionalen Werkstücken in einer Laser-Materialbearbeitungsanlage oder einer Stereolithographieanlage, wobei entweder lagenweise Sintermaterial oder pastoses Material aus einer Vorratseinrichtung auf eine Unterlage aufgetragen und durch bereichsweise Bestrahlung mit Laserstrahlung eines Lasers derart erhitzt wird, dass sich die Bestandteile des Sintermaterials oder pastosen Materials bei zumindest teilweiser Aufschmelzung bestrahlungs-bereichsabhängig lagenweise zu dem Werkstück miteinander verbinden, wozu Laserstrahlung mit einer ersten Energiedichte und/oder einem ersten Fokusdurchmesser eingesetzt wird, und während oder nach dem Werkstückherstellungsprozess Bereiche des Werkstückes durch den Laser unter Erhöhung seiner Energiedichte aufgeschmolzen oder abgetragen werden, wobei nach dem Herstellen von einer oder mehrerer Materiallagen die Bauteilkontur mit erhöhter Energiedichte des Laserstrahls abgefahren und dadurch der Werkstückrand abgetragen wird ...

Verfahren zum Herstellen von Produkten durch Freiform-Lasersintern

Ein Verfahren zum Herstellen metallischer oder nicht-metallischer Produkte durch Freiform-Lasersintern, bei dem die Produkte mittels eines datengesteuert geführten Laserstrahls aus pulverförmigem Werkstoff auf einer Substratplatte schichtweise senkrecht aufgebaut werden, zeichnet sich dadurch aus, dass zwischen der Substratplatte und der Außenfläche des Produkts mindestens eine Stütze aufgebaut wird, die über eine Sollbruchstelle mit der Außenfläche des Produkts verbunden ist, wobei die Sollbruchstelle durch eine Verringerung der Festigkeit der Stütze entlang der Außenkontur des Produkts gebildet wird.

Manufacturing apparatus and method

Additive layer manufacturing apparatus with process monitoring facility

Apparatus and method for building objects by selective solidification of powder material

Additive manufacturing apparatus and method

Sintering particulate material

Metal organic framework material

A MOF material is described comprising a polymer material upon a surface of which MOF crystals are located. Preferably the MOF crystals are nucleated and grown in-situ on the polymer material. The MOF crystals are selected from ZIF-67, ZIF-8, MIL-125, MOF-5, HKUST-1, MIL-100, MOF-74, UiO-66. The polymer material may be in powdered or granulated form and is selected from polyamide 12, polyaryletherketones (PAEK) or polypropylene (PP). Methods of manufacture whereby an organic ligand is dissolved in organic solvent, a polymer is added, and a metal ion is also added. Preferably the ligand is methylimidazole, terephthalic acid, 1,4-benzenedicatboxylic acid, 1,3,5-benzenetricarboxylic acid or 2,5-dioxide-1,4-benzenedicarboxylate. Products fabricated using the material are also described and may comprise a sole or insole of an item of footwear, a fan blade, filter or mesh charged with an antimicrobial agent. The articles may be manufactured by additive manufacturing.

Additive manufacturing methods

Three-dimensional printer

Fabricating a three-dimensional article from powder

A computer-controlled apparatus and method for fabricating three-dimensional articles in layerwise fashion is disclosed. Upon dispensing a layer of a fusible powder, a laser 110 irradiates selected locations of that layer on a target surface 104 to fuse the powder into a cross-section of the article to be formed in that layer, such that the cross-sections fuse together into the article. The laser 110 is controlled in a raster scan fashion across the selected locations of the powder layer. The raster scan lines are defined, for each cross-section, to achieve an optimal fill scan time. The optimal fill scan time is determined, by the computer 140 estimating the fill scan time by rotating the cross-section over a plurality of rotational angles, and estimating the fill scan time for each of the rotated cross-sections for at least a sample of the fill scans necessary to form the article. The actual fill scan vectors to be used in selective laser sintering of the article are rotated, from a coordinate ...

Manufacturing moulds for drill bits

A resilient model 12 of an article of manufacture, such as an earth-boring drill bit body or component thereof, is fabricated by layered manufacturing techniques, such as selective layer sintering, stereolithography, three-dimensional printing, laminated object manufacturing. The resilient model 12 may then be employed to cast one or mould 410 from a refractory material (e.g. castable ceramics). The material may be applied to model 12 by dipping the model in a slurry of the material, by spraying onto the model 12, by placing the model into a container and pouring the material around the model 12, in paste form to the exposed surfaces of the model 12, by blowing in paste form onto the model etc. The material is then hardened. The moulds may then be used to fabricate the modeled article of manufacture (e.g. earth-boring drill bit of molten steel).The model 12 may be made of elastomeric material.

Rotating build plate for powder bed additive layer manufacturing system

A powder bed additive layer manufacturing system includes a linear traversing re-coater 8 and a build plate 6, characterised in that the build plate 6 is mounted for rotation. In a further aspect, the build plate 6 includes an elevator mechanism 7, which mechanism incorporates the rotation axis. In an alternative arrangement, the re-coater 8 is rotated instead of the build plate 6. Preferably, the re-coater 8 distributes powder material 4 from a hopper 9 onto the build plate 6, and a laser 1, directed by scanning optics 2, directs a beam 3 onto the powder 4 to to form a solid layer 5. By this method, a three-dimensional model can be fabricated. The provision of a rotation axis on the build plate 6 or re-coater 8 allows an uppermost deposited layer, especially in a body 5 having parts of different orientations, to be positioned so that it lies substantially orthogonal to the line of movement of the re-coater 8 before the next layer is deposited, thereby reducing any frictional forces and ...

Powder dosing system

A method of forming an article by a rapid prototyping process by dividing a 3 dimensional computer aided design software file into sub files

The invention relates to a method of forming an article in a layer wise rapid prototype manufacturing process from a 3 dimensional computer aided design (3d cad) file which represents the article. The method comprises dividing the file into sub files in dependence of the size or other characteristics of features of the article to be created; applying selected independence on a characteristic feature to each sub file and manufacturing the article in accordance with the sub files. The article is preferably formed from a metal or polymer power which is sintered, melted or otherwise fused together to form a solid object by the application of a point heat source such as a laser or electron beam. Splitting the files enables different processing strategies to be applied to each file. The files may be overlapped to form features simultaneously such as plate 12 and stud 13, and thereby achieve a satisfactory joining of the two parts. The process characteristic may be a laser beam offset.

Thermally insulating a component while being made by selective solidification

A method of making a component 110 & 120 from selectively sintered or melted powder layers 10 & 20 built upon a support plate 80, where first a plurality of columns 210 are built layer by layer on the support plate 80 and then the component 110 & 120 is built layer by layer on the columns 210. The non-solidified powder 220 located between the solidified columns 210 provides thermal insulation between the component 110 & 120 and the support plate 80 on which it is formed. The component 110 & 120 can be a turbine blade made from a nickel-based superalloy with the root 110 of the blade formed on the columns 210 and the airfoil 120 then formed on the root 110, or other components used in aviation which are made from a superalloy.

Forming a three dimensional object

Improvements in and relating to ink jet deposition

Apparatuses, systems and methods for three-dimensional printing

Method and apparatus of very much faster 3D printer

A 3D printer that is mostly twenty to thirty times faster than existing 3D printers. Pixel-based Raster images are converted into Scalable Vector Graphic (SVG) images, which are then categorized as lines, curves and surface areas. For each category, faster printing methods for printing with pre-formed shapes such as rods, boards, arcs, etc., are disclosed. Pre-formed shapes may be made of plastic/thermoplastic/polymer or sintering materials, as desired. Sintering materials may be cladded/coated with appropriate materials such as solder, copper, and thermoplastics. The new print-head, which has a fixed portion and a replaceable portion, has a mechanism to draw upon pre-formed shapes to print. The replaceable portion has varying shapes and sizes of placement holes, and a mechanism to signal which replaceable portion has been mounted. The print-head incorporates mechanisms to heat and tack the pre-formed shapes. The invention discloses methods to use multiple print-heads to further speed up ...

Ceramic objects and methods for manufacturing the same

A method for manufacturing a ceramic object comprising the carbonizing 101 of a 3D printed ceramic structure, which may include the introduction of a network of carbon bonds within and/or surrounding the printed ceramic structure. The ceramic printing medium can comprise a carbon precursor in order to form the structure with carbon already included before pyrolysing of the structure occurs. Alternatively, the carbon precursor can be impregnated 101a by vacuum, spraying or soaking into the structure and/or coated 101b on to the structure after formation but prior to pyrolysing 101c, 101d. The refractory ceramic object can be a ceramic filter or more specifically, a ceramic foam foundry filter for molten metal filtration.

Three-dimensional printer

METHOD OF MANUFACTURING A COMPONENT USING A LASER

Apparatus for manufacturing a component by added layer deposition and a method of manufacturing a component. The method comprises the steps of directing a beam of energy e.g. a laser beam to heat a working region of a substrate and adjusting the cross sectional shape of the beam to thereby generate a variety of predetermined cross sectional shapes of working region while the beam is being directed onto the substrate. Thus the distribution of energy delivered to the substrate is controlled during the manufacturing process. The cross sectional shape and area of the beam is repeatedly monitored and compared to a library of predetermined cross sectional shape(s) and area(s) and the beam cross sectional shape adjusted accordingly.

A method of fabricating a part by selective melting or selective sintering of powder beds by means of a high energy beam

Additive manufacture of electrically conductive materials

Method and apparatus for determining powder condition

Determining the condition of a powder 8, such as metal powder for use in an additive manufacturing process, involving measuring a surface property of the powder. This may be achieved by taking an image of the powder and processing the image to measure the surface property of the powder, such as colour or texture. The proportion of powder whose measured surface property falls outside a predetermined range is determined and can be used to decide whether or not the powder is suitable for re-use. Powder condition may also be assessed by observing colour and determining if it falls inside or outside a predetermined range. The method may comprise resolving individual powder particles and measuring the surface property of each individual particle. A microscope 3 may be used and the measuring device may comprise a spectrophotometer.

Metal organic framework material

A MOF material is described comprising a polymer material upon a surface of which MOF crystals are located. In a preferred embodiment, the MOF crystals are formed in-situ on the polymer surface. The polymer surface should be capable of forming chemical bods with the ligands of the MOF. Preferably the material is in powder or granulated form. The polymer is preferably chosen from Polyamide-12, polypropylene and polyaryletherketones. Preferred MOFs for use in the invention are ZIF-8, MIL-125, MOF-5, HKUST-1, MIL-100, MOF-74 or UIO-66. The composite material may be used in an additive manufacturing process and is preferably used to form porous structures. The material may be made by combining a metal salt, an alcoholic solution of an appropriate ligand, and the polymer and allowing the MOF crystals to form on the surface of the polymer.

3D-Printer for molding downhole equipment

Method of and apparatus for additive layer manufacture

A method and apparatus for additive layer manufacture, e.g. with an electron beam, wherein to monitor layer quality, structured light defining a fringe pattern is projected onto each deposited layer before S2 and/or after S10 melting of material in that layer. The fringe pattern on each layer is imaged S3, S11 from a perspective different from that of the projection so as to reveal disturbance of the pattern by topographical features of the layer (Fig 1b) and recognize defects in the layer before melting S4, S5, S7 or in a cross-sectional layer of the article formed after melting S12, S13, S15. If defects are detected layer deposition is correctively influenced, e.g. by vibrating or otherwise smoothing the layer S6, S8 or by introducing energy, e.g. by separate optics, e.g. to partially melt the cross-sectional layer. Further material may be added, removed, or replaced. A fringe pattern algorithm, e.g. phase stepping procedures, FFA, DPD, or wavelet transform fringe analysis may be used ...

Powder supply in additive layer manufacturing apparatus

Radiation source assembly and apparatus for layer-by-layer formation of three-dimensional objects

A Docking arrangement for an additive manufacturing process

Three-Dimensional Parts Having Porous Protective Structures

Three-dimensional parts having porous protective structures built with powder-based additive manufacturing systems, the porous protective structures being configured to protect the three-dimensional parts from damage during de-powdering processes.

Articles And Method Of Manufacture Of Articles

Various articles, such as footwear, apparel, athletic equipment, watchbands, and the like, and methods of forming those articles are presented. The articles are generally formed, in whole or in part, using rapid manufacturing techniques, such as laser sintering, stereolithography, solid deposition modeling, and the like. The use of rapid manufacturing allows for relatively economical and time efficient manufacture of customized articles. Portions of the articles may be manufactured using rapid manufacturing and those portions may be joined with portions formed using conventional, non-rapid manufacturing techniques. The methods may also include performing a scan of an appropriate body part of a user, such as a foot, in order to create a customized article of footwear for the user.

Transport container

A transport container for use in a device for producing a three-dimensional object of selective solidification of a build-up material deposited in layers, in which the device has a process chamber closed during operation, where the three-dimensional object is produced in layers. The transport container has a container, in which a height-adjustable platform is arranged, on which the three-dimensional object is produced in layers. The process chamber has first and second sections in which the second section can be separated from the first section and operated in a separate state independently from the device and also can be connected to the first section to produce an operating state of the device.

Method and device for producing a three-dimensional object

A method for producing a three-dimensional object by selective solidification of a build material includes irradiating a surface of a mask with at least one radiation source. The mask is disposed at a distance from a build plane and an optical imaging system is used to produce a reproduction of the mask on the build plane.

Method and device for generatively manufacturing a three-dimensional object with three-dimensional coded character

The present invention relates to a method and to a device for generatively manufacturing a three-dimensional object ( 3 ). A powdery material ( 11 ) is applied layerwise onto a support ( 5 ) of the device or onto a previously applied layer, and the powdery material ( 11 ) is solidified by energetic radiation ( 8′ ) at locations corresponding to the object ( 3 ). The powdery material ( 11 ) is solidified such that a digital, machine readable and three-dimensional coded character is provided at a surface of the object ( 3 ).

Apparatus and method for producing a three-dimensional object

The invention concerns an apparatus for producing a three-dimensional object layer by layer using a powdery material which can be solidified by irradiating it with an energy beam, said apparatus comprising an electron gun for generating said energy beam and a working area onto which the powdery material is distributed and over which the energy beam sweeps during irradiation. The invention is characterized in that the apparatus is provided with a system for feeding controlled amounts of a reactive gas into the apparatus such as to contact the reactive gas with material positioned on the working area, said reactive gas being capable of, at least when having been exposed to the energy beam, reacting chemically and/or physically with the material positioned on the working area. The invention also concerns a method for operating an apparatus of the above type.

System and Method For Layerwise Production of A Tangible Object

A system and method for layer-by-layer production of an object is provided. The system includes a construction shape having a carrying surface adapted for carrying a layer of build material, a plate having a holding surface adapted for holding an object in an object build area, a moveable reservoir having a plurality of containment surfaces defining a containment area adapted for containing a volume of build material within the moveable reservoir, and an exposure unit adapted for exposing at least a portion of the layer of build material in the object build area so that the portion of the layer of build material solidifies to form a solidified layer of the object.

Optical irradiation device for a system for producing three-dimensional work pieces by irradiating powder layers of a powdered raw material using laser radiation

An optical irradiation device is provided which includes a multimode optical fiber suitable for the central wavelength of a beam of light having a first beam profile which enters through an input connection for multimode guidance; a switching device, which can be switched between a first and second light conducting state and is configured to conduct the beam of light entering through the input connection in the first light conducting state to an output connection, such that the beam of light has the first beam profile on emerging from the output connection, and guides the beam of light entering the input connection to the output connection by the multimode optical fiber in the second light conducting state, so that the beam of light has a second beam profile different from the first beam profile on emerging from the output connection by the multimode guidance in the multimode optical fiber.

Component properties through optimized process management in laser sintering

A method for layer-by-layer production of a three dimensional object is provided. The method includes applying a layer of a polymer powder having a thickness; selectively irradiating portions of the polymer powder layer with a laser beam having an average power density and a focus maximum power density to melt and sinter the irradiated polymer powder; cooling the melted and sintered powder to obtain a solid mass having a shape; and repeating the application, irradiating and cooling operations until the three dimensional object is obtained; wherein a duty factor of the laser beam is greater than 60%. Also provided is an apparatus to carry out the method and a molding obtained therefrom.

Process for melting/sintering powder particles for the layer-by-layer production of three-dimensional objects

A process for melting/sintering powder particles for layer-by-layer production of three-dimensional objects wherein a layer of powder particles is irradiated by a nonlinear path of an electromagnetic radiation is provided. Also provided are an apparatus to conduct the process and three dimensional objects obtained by the process.

Method for manufacturing an object by solidifying powder using a laser beam with the insertion of a member for absorbing deformations

Method for manufacturing an object, includes: a) depositing a first layer of powder onto a work area constituted by a plate; b) compacting the first layer; c) solidifying a first area of the layer compacted in step b) using a laser beam, the area corresponding to a section of the bottom of the finished object; and d) repeating steps a) through c) until the object is obtained. An additional step e) before step c) includes producing, by solidifying a powder using the laser beam, a member for absorbing deformations to be arranged between the work area and an area to be part of an area corresponding to a portion of a bottom of the finished object. The absorption member produced includes a deformable substrate including a plurality of blades capable of connecting a surface of the plate to the first area constituting a surface of a bottom of the object.

Method of Manufacturing a Three-Dimensional Object by Use of Synthetic Powder Having Anti-Microbial Properties, and Synthetic Powder Having Anti-Microbial Properties for Such a Method

A method is provided, in which three-dimensional objects are manufactured by layer-wise solidifying powdery synthetic material by impact of electromagnetic or particle radiation, wherein the powdery synthetic material has an anti-microbial property so that the manufactured objects comprise surfaces having an anti-microbial effect. The anti-microbial property is achieved by additives which are present in each powder grain. Such additives can be noble metals, for example argent. The manufactured objects are mainly used in particular in the food industry and in medical engineering.

Process for layer-by-layer production of three-dimentional objects

The present invention provides processes for the layer-by-layer production of three-dimensional objects using a powder material comprising polyamide PA613 and also to the moldings obtained according to the process.

Powder rapid prototyping apparatus and powder rapid prototyping method

A powder rapid prototyping apparatus includes a decompressable chamber, a thin layer forming section which supplies powder material from a powder material housing container provided in the chamber to form a thin layer of the powder material, an energy beam source for heating which outputs energy beam for heating which sinters or melts and models the thin layer of the powder material, and a control section which controls the modeling, wherein the control section exposes the powder material to the decompressed atmosphere before starting modeling, and houses the powder material in the powder material housing containers in a divided manner.

Ion-conducting composite electrolyte comprising path-engineered particles

An ion-conducting composite electrolyte is provided comprising path-engineered ion-conducting ceramic electrolyte particles and a solid polymeric matrix. The path-engineered particles are characterized by an anisotropic crystalline structure and the ionic conductivity of the crystalline structure in a preferred conductivity direction H associated with one of the crystal planes of the path-engineered particle is larger than the ionic conductivity of the crystalline structure in a reduced conductivity direction L associated with another of the crystal planes of the path-engineered particle. The path-engineered particles are sized and positioned in the polymeric matrix such that a majority of the path-engineered particles breach both of the opposite major faces of the matrix body and are oriented in the polymeric matrix such that the preferred conductivity direction H is more closely aligned with a minimum path length spanning a thickness of the matrix body than is the reduced conductivity direction L.

Solid Imaging Systems, Components Thereof, and Methods of Solid Imaging

There is provided solid imaging methods and apparatus for making three-dimensional objects from solid imaging material. A tray with a film bottom is provided to hold solid imaging material that is selectively cured into cross-sections of the three-dimensional object being built. A coater bar is moved back and forth over the film to remove any uncured solid imaging material from a previous layer and to apply a new layer of solid imaging material. A sensor is provided to measure the amount of resin in the tray to determine the appropriate amount of solid imaging material to be added, from a cartridge, for the next layer. A shuttle, which covers the tray when the exterior door to the solid imaging apparatus is opened for setting up a build or removing a three-dimensional object, can also be used to move the coater bar and to selectively open one or more valves on the cartridge to dispense the desired amount of solid imaging material.

Additive manufacturing method and system

The invention relates to a method for the additive manufacturing of at least one three-dimensional object (1) by means of a system comprising a coating unit (40) and at least two irradiation units (50), the irradiation areas of which partially overlap or are adjacent to each other, wherein the irradiation areas are adapted so that a total irradiation period for selectively solidifying one or more layers of applied build-up material (30) is minimised as required. The invention further relates to a system for additive manufacturing of three-dimensional objects and a computer-readable storage medium.

Method for building and using three-dimensional objects containing embedded identification-tag inserts

A method for building a three-dimensional object containing an identification-tag insert, the method comprising performing a build operation to form layers of the three-dimensional object using a layer-based additive technique, placing the identification-tag insert on at least a portion of the layers during the build operation, and reading information from the identification-tag insert.

PROCESSING SYSTEM, PROCESSING METHOD, COMPUTER PROGRAM, RECORDING MEDIUM AND CONTROL APPARATUS

A processing system is provided with: a support apparatus that is configured to support a processing target; a processing apparatus that performs an additive processing by irradiating a processed area on the processing target with an energy beam and by supplying materials to an area that is irradiated with the energy beam; and a position change apparatus that changes a positional relationship between the support apparatus and an irradiation area of the energy beam from the processing apparatus, wherein the processing system forms a fiducial build object by performing the additive processing on at least one of a first area that is a part of the support apparatus and a second area that is a part of the processing target, and the processing system controls at least one of the processing apparatus and the position change apparatus by using an information relating to the fiducial build object. 1. A processing system comprising:a support apparatus that is configured to support a processing target;a processing apparatus that performs a processing by irradiating a processed area on the processing target with an energy beam;a position change apparatus that changes a relative positional relationship between the support apparatus and an irradiation area of the energy beam; anda control apparatus that controls the position change apparatus on the basis of a position information of a reference that is formed by performing the processing on at least one of the support apparatus and the processing target by the processing apparatus.2. The processing system according to claim 1 , whereinthe processing system further comprises a measurement apparatus that is configured to measure a relative positional relationship between the processing target and the reference.3. The processing system according to claim 1 , whereinthe processing system further comprises a measurement apparatus that is configured to measure a relative positional relationship between a part of the processing target ...

Light Recycling For Additive Manufacturing Optimization

A method and an apparatus pertaining to recycling and reuse of unwanted light in additive manufacturing can multiplex multiple beams of light including at least one or more beams of light from one or more light sources. The multiple beams of light may be reshaped and blended to provide a first beam of light. A spatial polarization pattern may be applied on the first beam of light to provide a second beam of light. Polarization states of the second beam of light may be split to reflect a third beam of light, which may be reshaped into a fourth beam of light. The fourth beam of light may be introduced as one of the multiple beams of light to result in a fifth beam of light. 1. A method , comprising the steps of:multiplexing, by a first optical assembly, multiple beams of light including at least one or more beams of light from one or more light sources;reshaping and blending, by an optical device, the multiple beams of light to provide a first beam of light;applying, by a spatial polarization valve, a spatial polarization pattern on the first beam of light to provide a second beam of light;splitting, by a polarizer, polarization states of the second beam of light to reflect a third beam of light;reshaping, by a second optical assembly, the third beam of light into a fourth beam of light; andintroducing, by the second optical assembly, the fourth beam of light to the first optical assembly as one of the multiple beams of light to result in a fifth beam of light that is emitted through and not reflected by the polarizer.2. The method of claim 1 , wherein the receiving of the multiple beams of light including at least one or more beams of light from the one or more light sources comprises receiving at least the one or more beams of light from at least a solid state laser or a semiconductor laser.3. The method of claim 1 , wherein the applying of the spatial polarization pattern on the first beam of light comprises applying the spatial polarization pattern on the first ...

FABRICATION OF COMPOSITE PARTS BY ADDITIVE MANUFACTURING AND MICROSTRUCTURE TOPOLOGY OPTIMIZATION

A system and method for optimizing an additive manufacturing process in which a reinforcement material is randomly introduced to a fabrication bed. An image of the fabrication bed is captured. The image is analyzed by code in a computer to identify the actual arrangement of the randomly deposited reinforcement material relative to the object being manufactured. Based on the image data showing the reinforcement material, a toolpath is dynamically determined that incorporates the random reinforcement material. Accordingly, the toolpath incorporates the reinforcement material into the structure of the object, which can result in a reduction of the total amount of raw material is fused to create the object being manufactured. 1. A method for manufacturing an object using an additive manufacturing process , comprising the steps of:providing loose raw material to a fabrication bed;providing loose reinforcing material to the fabrication bed having a random distribution;capturing an image of the raw material and the reinforcement material;processing the image to identify an arrangement of the reinforcement material in the fabrication bed;dynamically determining a toolpath based upon the arrangement of the identified reinforcement material; andoperating a tool to activate the raw material along the determined toolpath in a layer of the object being manufactured.2. The method of claim 1 , wherein the step of dynamically determining the toolpath based on the arrangement of the identified reinforcement material comprises:identifying a portion of raw material to be activated to structurally incorporate at least a portion of the loose reinforcement material into the layer of the object being manufactured.3. The method of claim 2 , wherein the step of dynamically determining the toolpath further comprises identifying another portion of raw material that is not activated to define a void claim 2 , and the step of operating the tool further comprises controlling the tool to activate ...

POWDER MATERIAL FOR PRODUCING THREE-DIMENSIONAL OBJECT, KIT FOR PRODUCING THREE-DIMENSIONAL OBJECT, AND THREE-DIMENSIONAL OBJECT PRODUCING METHOD AND APPARATUS

Provided is a powder material for producing a three-dimensional object including: a base material; a resin; and resin particles, wherein an amount W (mass %) of carbon remaining in the powder material after heating in a vacuum of 10Pa or lower at 450 degrees C. for 2 hours satisfies the following formula: W (mass %)<0.9/M, where M represents the specific gravity of the base material. 1. A powder material for producing a three-dimensional object , the powder material comprising:a base material;a resin; andresin particles,{'sup': '−2', 'wherein an amount W (mass %) of carbon remaining in the powder material after heating in a vacuum of 10Pa or lower at 450 degrees C. for 2 hours satisfies a formula: W (mass %)<0.9/M, where M represents a specific gravity of the base material.'}2. The powder material for producing a three-dimensional object according to claim 1 ,wherein the resin comprises a nonaqueous first resin, andwherein the powder material comprises a coating film formed of the resin and coating a surface of the base material.3. The powder material for producing a three-dimensional object according to claim 2 ,wherein the resin particles comprise a second resin, andwherein the powder material comprises the resin particles over the coating film.4. The powder material for producing a three-dimensional object according to claim 3 ,wherein a coating ratio of the resin particles over the surface of the base material coated with the coating film is 3% or higher.5. The powder material for producing a three-dimensional object according to claim 1 ,wherein a volume average particle diameter of the resin particles is 600 nm or less.6. The powder material for producing a three-dimensional object according to claim 1 ,wherein the base material comprises at least one selected from the group consisting of Al, Ti, and copper.7. The powder material for producing a three-dimensional object according to claim 1 ,wherein the resin particles comprise at least one selected from the ...

ADDITIVE MANUFACTURING MACHINE COMPRISING A DEVICE FOR THE DISTRIBUTION OF POWDER ONTO A MOBILE SURFACE USING VIBRATION

An additive manufacturing machine () comprises at least one movable powder reception surface () capable of being displaced in proximity to a manufacturing zone (), a powder spreading device (), and a device () for distributing powder on the movable reception surface. The powder distribution device comprises a buffer tank () linked to a powder supply () and a distribution duct () linking the buffer tank to a powder distribution point (P) situated above the movable reception surface, and the distribution duct () is mounted on a vibrating device making it possible to vibrate the distribution duct so as to generate a continuous flow of powder in the distribution duct and from the buffer tank to the powder distribution point. 112.-. (canceled)13. An additive manufacturing machine , based on powder bed deposition , comprising:a manufacturing enclosure;at least one heat or energy source used to selectively melt a layer of additive manufacturing powder deposited inside the manufacturing enclosure;at least one movable powder reception surface capable of being displaced in proximity to a manufacturing zone situated inside the manufacturing enclosure;a powder spreading device configured to spread the powder from the at least one movable powder reception surface to the manufacturing zone; anda powder distribution device for distributing powder on the movable reception surface,wherein the powder distribution device comprises a buffer tank linked to a powder supply and a distribution duct linking the buffer tank to a powder distribution point situated above the movable reception surface, andwherein the distribution duct is mounted on a vibrating device configured to vibrate the distribution duct so as to generate a continuous flow of powder in the distribution duct and from the buffer tank to the powder distribution point.14. The additive manufacturing machine according to claim 13 , wherein the buffer tank is rigidly fixed to the distribution duct.15. The additive manufacturing ...

Printing a multi-structured 3d object

In an example implementation, a method of printing a multi-structured three-dimensional (3D) object includes forming a layer of sinterable material. The method includes processing a first portion of the sinterable material using a first set of processing parameters and processing a second portion of the sinterable material using a second set of processing parameters. The processed first and second portions form, respectively, parts of a first and second structure of a multi-structured 3D object.

Powder bed fusion apparatus

A powder bed fusion apparatus has an energy beam emitting section for outputting an energy beam, a thin layer forming section for forming a thin layer of a powder material, preliminary heating means for pre-heating the thin layer of the powder material, and control means for controlling modeling, wherein the control means performs forming the thin layer of the powder material, pre-heating the thin layer of the powder material, and modeling based on slice data, in which irradiation of the energy beam is started from the central region of the thin layer, and sequentially moved to a peripheral region of the thin layer.

COMPACT BUILD TANK FOR AN ADDITIVE MANUFACTURING APPARATUS

Described is an additive manufacturing apparatus that includes a telescopic build tank operatively connected at opposing ends to a powder table and a build table. The telescopic build tank includes at least two segments telescopically coupled to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments. The set of engagement pins is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and each engagement groove comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede separation of the at least two segments relative to one another. 1. An additive manufacturing apparatus for forming a three-dimensional article layer by layer from a powder , the additive manufacturing apparatus comprising:a powder table;a build table; anda telescopic build tank operatively connected at one end to the powder table and at an opposing other end a portion of the build table, the telescopic build tank comprising at least two segments telescopically coupled relative to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments, the set of engagement pins of one of the at least two segments is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and', 'each engagement groove of the set of engagement grooves comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede further translation of a ...

Powder recirculating additive manufacturing apparatus and method

A method of making a part by an additive manufacturing process includes the steps of: (a) supporting a build platform on a support surface; (b) traversing a powder dispenser positioned above the support surface across the build platform, while dispensing powder from the powder dispenser, so as to deposit the powder over the build platform; (c) traversing the build platform with a scraper to scrape the deposited powder, so as to form a layer increment of powder; (d) using a directed energy source to fuse the layer increment of powder in a pattern corresponding to a cross-sectional layer of the part; and (e) repeating in a cycle steps (b) through (d) to build up the part in a layer-by-layer fashion.

Method for Producing Three-Dimensional Shaped Product

A method for producing a three-dimensional shaped product that employs a shaping method based on dispersion of powder by a squeegee and irradiation onto a powder layer with a laser beam or electron beam, includes the following steps: 1. Setting an upper limit value and lower limit value for the amount of circulation passing through an anemometer, and an adjusting value within this range; 2. Measuring the amount of circulation and effecting control as follows: (1) When the measured value is between the upper limit value and lower limit value, the rotational speed of the blower fan is maintained, and (2) When the measured value has fallen below the lower limit value due to clogging of a filter, the rotational speed of the fan is increased and the rotational speed is selected at the stage where the measured value has reached the adjusting value, and the rotational speed is maintained. 1. A method for producing a three-dimensional shaped product which employs a forming step in a shaping region , based on dispersion of powder by a squeegee on a shaping table disposed within a chamber and irradiation onto powder layers formed by the dispersion with a laser beam or electron beam , wherein a filter that removes fumes generated from the powder layers due to the irradiation in a fume collector that traps the fumes , a blower that circulates inert gas-containing gas inside and outside the chamber , and an anemometer that communicates with the blower are installed , and the method including the step of controlling the amount of circulation of gas per unit time being circulated inside and outside the chamber by the following steps:1. setting an upper limit value and a lower limit value for the amount of circulation of gas per unit time passing through the anemometer, and2. setting an adjusting value within the range between the upper limit value and the lower limit value,3. selecting, at the start of gas circulation, a numerical value for the rotational speed of a fan of a ...

METHOD AND DEVICE FOR IMPROVING THE COMPONENT QUALITY OF OBJECTS MANUFACTURED BY AN ADDITIVE MANUFACTURING PROCESS

Disclosed is a method of providing control data for an additive manufacturing device. The method includes accessing computer-based model data of at least a portion of the object to be manufactured, generating at least one data model of a region of a building material layer to be selectively solidified for manufacturing the at least one object portion. The data model specifies solidification of the building material, and the end point of the at least one solidification path a set of energy introduction parameter values is specified which generates a reference value for the radiation power per unit area in the radiation impact area of the beam bundle on the building material which is lower than the reference value for the radiation power per unit area at other locations of the solidification path, and providing control data corresponding to the generated at least one data model for generating a control data set for the additive manufacturing device. 1. A computer-aided method for providing control data to an additive manufacturing device for manufacturing a three-dimensional object , wherein the object is manufactured by means of the additive manufacturing device by applying a building material layer by layer and by solidifying the building material by supplying radiation energy to locations in each layer corresponding to the cross-section of the object in that layer by scanning those locations with at least one beam bundle according to a set of energy introduction parameter values along a number of solidification paths , a first step of accessing computer-based model data of at least a portion of the object to be manufactured,', 'a second step of generating at least one data model of a region of a building material layer to be selectively solidified for manufacturing said at least one object portion, wherein the data model specifies solidification of the building material by moving at least one beam bundle along at least one solidification path,', 'wherein a set of ...

METHOD OF WELDING ADDITIVELY MANUFACTURED THERMOPLASTIC

A method of forming a component includes additively manufacturing a first subcomponent, the first subcomponent including a first polymer material with a first porosity. The method further includes mating the first subcomponent with a second subcomponent and ultrasonically welding the first subcomponent to the second subcomponent at a weld frequency. The first porosity can be 5% or less. 1. A method of forming a component , the method comprising:additively manufacturing a first subcomponent, the first subcomponent comprising a first polymer material with a first porosity;mating the first subcomponent with a second subcomponent; andultrasonically welding the first subcomponent to the second subcomponent at a weld frequency;wherein the first porosity is 5% or less.2. The method of claim 1 , wherein the second subcomponent comprises a second polymer material with a second porosity.3. The method of claim 2 , wherein the first polymer material is a thermoplastic material.4. The method of claim 3 , wherein the second polymer material is the same as the first polymer material.5. The method of claim 3 , wherein the thermoplastic is polyetherketoneketone (PEKK).6. The method of claim 2 , wherein the second porosity is the same as the first porosity.7. The method of claim 2 , wherein the mating step comprises aligning a first subcomponent interface region with a second subcomponent interface region.8. The method of claim 7 , wherein one of the first and second subcomponent interface regions comprises an energy director joint.9. The method of claim 7 , wherein one of the first and second subcomponent interface regions comprises a shear joint.10. The method of claim 1 , wherein the weld frequency ranges from 15 to 25 kHz.11. The method of claim 1 , wherein the first subcomponent is additively manufactured using a selective laser sintering (SLS) technique.12. A component comprising:a first subcomponent;a second subcomponent; anda weld joint connecting the first subcomponent to ...

COMPOSITE MATERIAL INLAY IN ADDITIVELY MANUFACTURED STRUCTURES

Techniques for inlaying a composite material within a tooling shell are disclosed. In one aspect, an additively manufactured tooling shell is provided, into which a composite material is inlaid and cured. A surface of the tooling shell is provided with indentations or another mechanism to enable adherence between the composite material and the tooling shell. The resulting integrated structure is used as a component in a transport structure. 1. An apparatus comprising:a three-dimensional (3-D) printed tooling shell; andan integrated structure including a composite material formed with the tooling shell,wherein the composite material is secured to the tooling shell.2. The apparatus of claim 1 , wherein the integrated structure is operable for assembly into a transport structure.3. The apparatus of claim 1 , wherein the composite material includes a carbon fiber reinforced polymer.4. The apparatus of claim 1 , wherein the integrated structure further includes a composite matrix material with adhesive properties.5. The apparatus of claim 1 , wherein the 3-D printed tooling shell includes coarse sections on a surface to increase adhesion with the composite material.6. The apparatus of claim 1 , wherein the 3-D printed tooling shell includes a cavity.7. The apparatus of claim 1 , wherein the composite material is formed of inlaid carbon fiber.8. The apparatus of claim 1 , wherein the composite material is formed using a composite fabrication process.9. A method of manufacturing a component for a transport structure claim 1 , comprising:three-dimensional (3-D) printing a tooling shell; and molding a composite material using the tooling shell; and', 'securing the composite material to the tooling shell., 'producing an integrated structure comprising10. The method of claim 9 , wherein the integrated structure is operable for assembly into the transport structure.11. The method of claim 9 , wherein the composite material comprises carbon fiber reinforced polymer.12. The ...

Ultrasonically assisted powder bed additive manufacturing

A powder bed fusion additive manufacturing system that includes a powder bed; a material powder, wherein the material powder includes individual grains; an apparatus for spreading the material powder across the powder bed in a layer-by-layer manner; and an ultrasonic device adapted to function in cooperation with the powder-spreading apparatus for compacting the material powder in each layer and distributing the individual grains in each layer of material powder in a substantially uniform manner.

IMMOBILISATION ELEMENT AND ADDITIVE MANUFACTURING METHOD FOR MAKING SAME

This invention relates to a method for manufacturing an individualized immobilization element for the non-invasive immobilization and/or mobilization of at least a segment of a body part of a patient in a predetermined position relative to a reference and/or in a pre-certain configuration. The method comprises the steps of (i) providing a data set that comprises a three-dimensional image of an outer contour of at least a part of the segment of the body part to be immobilized and/or mobilized and (ii) the manufacture of at least a part of the immobilization element by rapid manufacturing of a shape on the basis of said data set using a polymeric material containing a thermoplastic polymer having a melting point less than or equal to 100° C., wherein the polymer material contains a nucleating agent for enhancing the of the crystallization of the thermoplastic polymer. 1. A method for manufacturing an individualized immobilization element for the non-invasive immobilization and/or mobilization of at least a segment of a body part of a patient at a predetermined position relative to a reference and/or in a predetermined configuration , the method comprising:providing a data set that comprises a three-dimensional image of an outer contour of at least a portion of the segment of the body part to be immobilized and/or mobilized; andmanufacturing of at least a part of the immobilization element by rapid manufacturing of a shape based on said data set, using a polymeric material containing a thermoplastic polymer having a melting point less than or equal to 100° C.,wherein the polymeric material contains a nucleating agent capable of enhancing crystallization of the thermoplastic polymer, andwherein at least a portion of an inner surface of the shape has an inner contour which is complementary to the outer contour of the segment of the body part to be immobilized and/or mobilized.2. The method according to claim 1 , wherein the thermoplastic polymer is selected from the ...

METHOD FOR PRODUCING AN OBJECT BY MELTING A POLYMER POWDER IN A POWDER SINTERING DEVICE

A method for producing an object by melting a polymer powder in a powder sintering device. For example, a method for producing an object by melting a polymer powder in a powder sintering device under a laser beam, implementing a rheological analysis of the polymers, in order to determine the conditions for producing the object by melting polymer powders. 1. A process for manufacturing an object by melting a polymer powder in a laser-beam powder sintering device comprising the following steps:manufacturing the object in a laser-beam powder sintering device at the initial temperature of the powder bed, said initial temperature of the powder bed being selected in the following manner:establishing the viscosity behavior of the polymer powder as a function of the time and of a descending temperature gradient starting from a supercooling temperature, corresponding to the temperature of the powder bed, that the layer melted at T>Tm by the laser rapidly returns to via cooling, the viscosity measurements being carried out in a plate-plate rheometer device at a stress frequency of less than 5 rad/s.selecting the initial temperature corresponding to the temperature of the powder bed allowing a viscosity of the supercooled polymer of between 800 and 20 000 Pa·s during a time range of more than 5 minutes.2. The process as claimed in claim 1 , wherein the polymer is semicrystalline.3. The process as claimed in claim 1 , wherein the polymer is amorphous.4. The process as claimed in claim 1 , wherein the polymer is a polyaryletherketone.5. The process as claimed in claim 1 , wherein the polymer is a polyamide.6. A composition comprising a semicrystalline polymer having a viscosity of between 800 and 20 000 Pa·s claim 1 , the viscosity measurements being carried out in a plate-plate rheometer device at a stress frequency of less than 5 rad/s claim 1 , said composition being supercooled to a temperature T below the melting temperature after exposure to a temperature T max above its ...

PRINTING A MULTI-STRUCTURED 3D OBJECT

In an example implementation, a method of printing a multi-structured three-dimensional (3D) object includes forming a layer of sinterable material. The method includes processing a first portion of the sinterable material using first set of processing parameters and processing a second portion of the sinterable material using a second set of processing parameters. The processed first and second portions form, respectively, parts of a first and second structure of a multi-structured 3D object. 1. A method of printing a multi-structured three-dimensional (3D) object comprising:forming a layer of sinterable material;processing a first portion of the sinterable material using a first set of processing parameters;processing a second portion of the sinterable material using a second set of processing parameters;wherein the processed first and second portions form, respectively, parts of a first and second structure of a multi-structured 3D object.2. A method as in claim 1 , wherein the layer of sinterable material comprises a first layer of sinterable material claim 1 , the method further comprising:forming a second layer of sinterable material; andprocessing the second layer using the second set of processing parameters, wherein the processed second layer forms part of the second structure.3. A method as in claim 2 , further comprising:forming a third layer of sinterable material; andprocessing the third layer using the first set of processing parameters, wherein the processed third layer forms part of the first structure.4. A method as in claim 1 , wherein:using a first set of processing parameters comprises applying to the first portion of sinterable material, a fusing agent having a first ink density; andusing a second set of processing parameters comprises applying to the second portion of sinterable material, a fusing agent having a second ink density.5. A method as in claim 1 , wherein the second structure comprises a core structure and the first structure ...

Three-dimensional printing and three-dimensional printers

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for the production of at least one desired 3D object. The 3D printer system (e.g., comprising a processing chamber, build module, or an unpacking station) described herein may retain a desired (e.g., inert) atmosphere around the material bed and/or 3D object at multiple 3D printing stages. The 3D printer described herein comprises one or more build modules that may have a controller separate from the controller of the processing chamber. The 3D printer described herein comprises a platform that may be automatically constructed. The invention(s) described herein may allow the 3D printing process to occur for a long time without operator intervention and/or down time.

METHOD FOR EXPOSING A THREE-DIMENSIONAL REGION

A method for illuminating a three-dimensional area (), the three-dimensional area being divided into at least two successive layers (), which are illuminated temporally sequentially, each layer () being divided into at least two illumination fields () with at least one first subarea (), one second subarea (′), if appropriate a third subarea (″) and if appropriate further subareas, wherein adjacent illumination fields () overlap in individual subareas (″) to avoid defectively illuminated regions. 11223444344. A method for illuminating a three-dimensional area () , the three-dimensional area being divided into at least two successive layers () , which are illuminated temporally sequentially , each layer () being divided into at least two illumination fields () with at least one first subarea () , one second subarea (′) , if appropriate a third subarea (″) and if appropriate further subareas , wherein adjacent illumination fields () overlap in individual subareas (′ , ″) to avoid defectively illuminated regions.2444. The method according to claim 1 , wherein to avoid over-illumination claim 1 , the average illumination intensity in the overlapping subareas (′ claim 1 , ″) is lower than in the non-overlapping subareas ().3442. The method according to claim 2 , wherein the illumination intensity in the overlapping subareas (′ claim 2 , ″) of adjacent layers () is different.444. The method according to claim 3 , wherein the illumination intensity in the overlapping subareas (′ claim 3 , ″) varies in one or two location coordinates claim 3 , so that the illumination intensity in these areas is dependent on location.544. The method according to claim 3 , wherein in individual overlapping subareas (′) claim 3 , a locally constant illumination intensity is provided claim 3 , and a locally variable illumination intensity is provided in other overlapping subareas (″).64423. The method according to claim 3 , wherein the illumination intensity in the overlapping subareas (′ claim ...

Device and method of exposure control in a device for producing a three-dimensional object

An exposure control device ( 31 ) serves for equipping and/or retrofitting a generative layer-wise building device ( 1 ). The latter comprises an exposure device ( 20 ) which emits electromagnetic radiation ( 22 ) or particle radiation and is configured to irradiate positions to be solidified in a layer in such a way that after cooling they exist as an object cross-section or part of the same. The exposure control device ( 31 ) has a first data output interface ( 36 ), at which control commands can be output to the exposure device ( 20 ). The control commands which are output specify one of a plurality of exposure types wherein an exposure type is defined by a predetermined combination of a radiation energy density to be emitted by the exposure device ( 20 ) and a scanning pattern with which the radiation ( 22 ) is being directed to a region of a layer of the building material ( 15 ). Furthermore, the exposure control device ( 31 ) has a second data output interface ( 37 ) at which an exposure type can be output in real time in relation to a timing of the output of a control command specifying this exposure type.

REMOVABLE 3D BUILD MODULE COMPRISING A MEMORY

A removable build module to connect to a host apparatus, may include a build platform to support an object-to-be-built, a drive unit to move the build platform, a memory to receive and store build parameters, and an interface circuit to communicate the build parameters to the host apparatus. 1. A removable build module to be connected to and removed from a host apparatus , comprisinga build material storage compartment to store build material,a build platform to support an object to be built,a drive unit to move the build platform,a memory including a data field to receive and store at least one build parameter, andan interface circuit to connect to an interconnect circuit of a host apparatus, to exchange the at least one build parameter with the host apparatus.2. The removable build module of comprising a build material transport unit to internally transport build material from the storage compartment to the platform.3. The removable build module of wherein the memory and interface circuit are toconnect to at least two different host apparatuses,store parameters received by the host apparatuses, andcommunicate certain parameters received from one host apparatus to the other host apparatus.4. The removable build module of wherein the memory is to receive claim 1 , store and communicate pre-build job parameters and post-build job parameters.5. The removable build module of wherein the memory is to concurrently store different build parameters corresponding to a mix of different build materials in the storage compartment.6. The removable build module of wherein the build parameters include melt temperature claim 1 , crystallization temperature and radiation absorptivity factor claim 1 , and/or ranges thereof.7. The removable build module of comprising at least one temperature sensor to sense a temperature of material on the platform.8. The removable build module of comprising at least one build material level sensor to sense a build material top surface level above ...

Forming device for producing moulded bodies by selectively hardening powder material

The invention relates to a forming device for producing moulded bodies by selectively hardening powder material to form connected regions, comprising a process chamber ( 28 ) having a powder inlet ( 32 ) for powder material to be processed, and a powder outlet ( 36 ) for excess powder material, a powder supply apparatus ( 80, 82 ) that is or can be connected to the powder inlet ( 32 ) and is intended for providing powder material in the process chamber ( 28 ), and a powder recovery apparatus ( 74 ) that is or can be connected to the powder outlet ( 36 ) and is intended for recycling powder material to be processed out of the excess powder material, wherein the powder supply apparatus ( 80, 82 ) and the powder recovery apparatus ( 74 ) are combined to form a subassembly that is designed as an interchangeable module ( 16 ) and comprises connection interfaces, specifically at least one input interface ( 46 ) an at least one output interface ( 48 ), that are connection-compatible with relevant connection interfaces ( 40, 44 ) of the powder inlet ( 32 ) and powder outlet ( 36 ) of the process chamber ( 28 ) such that excess powder can be fed out of the process chamber ( 28 ) through the powder outlet ( 36 ) thereof to the powder recovery apparatus ( 74 ) by means of the at least one input interface ( 46 ), and such that powder material prepared by the powder recovery apparatus ( 74 ) can be fed to the process chamber ( 28 ) through the powder inlet ( 32 ) thereof by means of the at least one output interface ( 48 ).

METHOD FOR MANUFACTURING THREE-DIMENSIONALLY SHAPED OBJECT

A method for manufacturing a three-dimensional shaped object comprising an undercut portion by alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and (ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by an irradiation of a predetermined portion of the newly formed powder layer with the light beam. Especially, in the manufacturing method according to an embodiment of the present invention, a modeling process for pre-identifying the undercut portion is performed prior to a performance of the method. 1. A method for manufacturing a three-dimensional shaped object comprising an undercut portion by alternate repetition of a powder-layer forming and a solidified-layer forming , the repetition comprising:(i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and(ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by an irradiation of a predetermined portion of the newly formed powder layer with the light beam,wherein a modeling process for pre-identifying the undercut portion is performed prior to a performance of the method.2. The method according to claim 1 , wherein a surface of a model of the three-dimensional shaped object to be manufactured is divided into a plurality of pieces in the modeling process claim 1 , and an extraction for a surface of the undercut portion is performed from the surface of the model of the three-dimensional shaped object claim 1 , based on a direction of a ...

APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS

Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (), which apparatus () comprises an irradiation device () adapted to generate the energy beam (), wherein the irradiation device () comprises a beam guiding unit () that is adapted to guide the energy beam () in a build plane () in which build material () is applied, wherein the irradiation device () is adapted to generate at least one segmented track () comprising at least two first track segments () in which build material () is to be irradiated with the energy beam (). 112491696895461112498101718171795129518. Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam () , which apparatus () comprises an irradiation device () adapted to generate the energy beam () , wherein the irradiation device () comprises a beam guiding unit () that is adapted to guide the energy beam () in a build plane () in which build material () is applied , characterized in that the irradiation device () is adapted to generate at least one segmented track () comprising at least two first track segments () in which build material () is to be irradiated with the energy beam () , wherein the beam guiding unit () is adapted to move at least one beam guiding element () in a continuous motion , comprising at least two first motion parts () and at least one second motion part () between the at least two first motion parts () , wherein during at least one , in particular each , first motion part () the energy beam () is guided onto the build plane () and one first track segment () is generated , wherein the energy beam () is not guided onto the build plane () during the at least one second motion part ...

Additive manufacturing material for powder rapid prototyping manufacturing

A molding material is provided which, despite containing a ceramic, enables efficient molding for producing high-density molded articles. The present invention provides a molding material to be used in powder laminate molding. This molding material contains a first powder which contains a ceramic, and a second powder which contains a metal. Further, the first powder and the second powder configure granulated particles. Ideally, the ratio of the content of the second powder to the total content of the first powder and the second powder is greater than 10 mass % and less than 90 mass %.

THREE DIMENSIONAL PRINTER FOR FUSING POWDERS WITH SURFACE COLORATION USING A VCSEL ARRAY

A three dimensional printing system for producing a three dimensional article of manufacture includes a build platform, a powder dispensing apparatus, a light emitting device head, a drop ejecting head, a movement mechanism, and a controller. The light emitting device head may be a vertical cavity surface-emitting laser (VCSEL) head that has a columnar arrangement of VCSELs that emit light having a defined spectral distribution. The drop ejecting head is configured to separately eject a plurality of different inks having correspondingly different absorption coefficients for the defined spectral distribution. The controller operates the powder dispensing apparatus to dispense powder, move and operate the drop ejecting head to define an array of inked pixels, and move and operate the VCSEL head to fuse the inked pixels. The controller varies an energy output of the VCSELs in correspondence with a variation of an absorption coefficient of the inked pixels. 1. A three dimensional printing system for producing a three dimensional article of manufacturing comprising:a build platform;a powder dispensing apparatus;a light emitting device head having a columnar arrangement of light emitting devices that emit light having a defined spectral distribution;a drop ejecting head configured to separately eject a plurality of different inks having correspondingly different absorption coefficients for the defined spectral distribution;a movement mechanism; and operate the powder dispensing apparatus to dispense a layer of fusible powder above the build platform;', 'operate the movement mechanism to scan the drop ejecting head over the dispensed layer of powder;', 'concurrent with scanning the drop ejecting head over the powder operate the drop ejecting head to define an array of inked pixels that have received varying amounts of the different inks whereby a resultant absorption coefficient of the inked pixels for the defined spectral distribution varies across the array of inked ...

COOLING OF PRINT DEVICE AND HEATING OF PRINT MATERIAL

In an example, a print device comprises: a heat pump () to extract heat from a fluid source to produce cooled fluid and to transfer the heat from the fluid source to heat a print material (), wherein the cooled fluid is used to cool a component () of the print device. 1. A print device comprising:a heat pump to extract heat from a fluid source to produce cooled fluid and to transfer the heat from the fluid source to heat a print material, wherein the cooled fluid is used to cool a component of the print device.2. A print device according to claim 1 , wherein the heat pump comprises a source heat exchanger and a sink heat exchanger claim 1 , wherein the source heat exchanger is in thermal contact with the fluid source and wherein the sink heat exchanger is in thermal contact with the print material.3. A print device according to claim 2 , wherein the print device is an additive manufacturing apparatus and wherein the print material is a build material and the component cooled by the coded fluid is an energy source to fuse the build material.4. A print device according to claim 3 , further comprising a print bed to receive the build material in a layer-wise manner and a feeder to supply the build material from a container to the print bed.5. A print device according to claim 4 , wherein the sink heat exchanger is in thermal contact with the feeder to heat the build material as it is conveyed to the print bed.6. A print device according to claim 2 , further comprising an intake duct and a fan to draw the fluid through the intake duct past the source heat exchanger.7. A print device according to claim 6 , wherein the component cooled by the cooled fluid is housed within a container and the intake duct is fluidically coupled to the container to supply the coded fluid into the container.8. A print device according to claim 7 , wherein the container comprises an exhaust port.9. A print device according to claim 8 , wherein the exhaust port is connected to the intake duct ...

ADDITIVE MANUFACTURING MACHINE COMPRISING A POWDER DISTRIBUTION SYSTEM HAVING A TRAY AND AN INJECTOR

A machine is provided for the additive manufacture of a part by complete or partial selective melting of a powder, the machine including: a horizontal working plane; at least one spreading device; at least one system for dispensing powder over the working plane comprising at least one slide for receiving powder and at least one powder injector, the receiving slide being movable in translation, with respect to the working plane, and the injector being positioned above the receiving slide, so as to dispense powder over the receiving slide which is moving between a retracted position and a deployed position. 1. A machine for the additive manufacture of a part by complete or partial selective melting of a powder , the machine comprising:a horizontal working plane configured to receive a powder layer;at least one spreading device for spreading the said powder layer over the working plane, which device is movable with respect to the working plane along a trajectory over the working plane, the trajectory comprising at least one component parallel to a longitudinal horizontal direction;at least one deposition system for deposition of powder on the working plane, the deposition system comprising (a) at least one slide for receiving powder and (b) at least one powder injector,wherein the receiving slide is movable in translation, with respect to the working plane, along at least one transverse horizontal direction, between (a) a retracted position in which the receiving slide extends outside the trajectory of the spreading device over the working plane and (b) a deployed position in which the receiving slide extends at least in part into the trajectory of the spreading device over the working plane, andwherein the injector is positioned above the receiving slide, so as to dispense powder over the receiving slide which is moving between the retracted position and the deployed position.2. A machine according to claim 1 , wherein the deposition system is removable with respect ...

BUILD MATERIAL SUPPLY FOR ADDITIVE MANUFACTURING

In one example, a build material supply for an additive manufacturing machine includes a container to de-agglomerate a supply of powdered build material. 1. A build material supply for an additive manufacturing machine , comprising a container to de-agglomerate a supply of powdered build material.2. The supply of claim 1 , where the container to de-agglomerate a supply of powdered build material comprises a rotatable container and the supply includes a controller to rotate the container to cause a cataracting flow of powdered build material inside the container.3. The supply of claim 2 , where the container comprises a cylindrical drum having a slot extending lengthwise along the drum through which de-agglomerated powdered build material may be dispensed from the drum and a valve to open and close the slot.4. The supply of claim 3 , comprising a heater inside the drum.5. The supply of claim 4 , comprising powdered build material in the drum.6. A non-transitory processor readable medium including instructions thereon that when executed cause an additive manufacturing machine to de-agglomerate a supply of powdered build material and dispense de-agglomerated powdered build material from the supply to a work area.7. The processor readable medium of claim 6 , including instructions to heat the supply of de-agglomerated powdered build material and dispense heated de-agglomerated powdered build material from the supply to a work area.8. An additive manufacturing machine controller that includes the processor readable medium of .9. An additive manufacturing process claim 6 , comprising:causing a cataracting flow of powdered build material inside a container;heating the cataracting flow of powdered build material;dispensing heated powdered build material from the container to a work area; and then fusing powdered build material in the work area.10. The process of claim 9 , where the container is an elongated container and the dispensing includes dispensing heated powdered ...

METHODS AND APPARATUS FOR MANUFACTURING A COMPONENT

A method of manufacturing a component comprising contacting a powder with a tooling comprising a main body and a removable element, applying a manufacturing process to the powder to form the powder into a component, removing the removable element from the tooling to form a recess, and inserting a separation tool into the recess to thereby apply a force to separate the component from the main body of the tooling. A tooling for forming a component from a powder, the tooling comprising a main body and a removable element which is removable from the main body to form a recess for the insertion of a separation tool to apply a force to separate the component from the main body of the tooling. 1. A method of manufacturing a component comprising:contacting a powder with a tooling comprising a main body and a removable element;applying a manufacturing process to the powder to form the powder into a component;removing the removable element from the tooling to form a recess; andinserting a separation tool into the recess to thereby apply a force to separate the component from the main body of the tooling.2. A method of manufacturing a component as claimed in claim 1 , wherein the removal of the removable element forms a recess which is in communication with a surface of the component claim 1 , and wherein the separation tool is inserted into the recess to contact the surface of the component and apply the force to separate the component from the main body of the tooling.3. A method of manufacturing a component as claimed in claim 1 , wherein the main body of the tooling is in contact with a surface of the component claim 1 , the tooling further comprising a buffer element separable from the main body and in contact with the surface of the component claim 1 , wherein removal of the removable element forms a recess which is in communication with the buffer element of the component claim 1 , and wherein the separation tool is inserted into the recess to contact the buffer element ...

METHODS OF ULTRASOUND ASSISTED 3D PRINTING AND WELDING

Methods of ultrasound assisted 3D printing and welding involve the use of an ultrasonic sonotrode placed in on top of the solidified layer in the vicinity of a melt pool. The sonotrode, pressed against the solidified materials at the edge of the melt pool, is synchronized with the heat source such that it travels side-by-side with the melt pool to transmit ultrasonic vibrations to the solidifying melt pool, reducing hot tearing and porosity formation, and to consolidate the solidified materials under the sonotrode. The methods of the present invention are capable of making a large variety of commercially important alloys 3D printable and weldable. 1. A method for forming high internal quality and high mechanical property 3D printing articles , comprising the step of:forming a melt pool by melting solid materials using a heat source conventionally used for 3D printing;placing the acoustic sonotrode of an ultrasonic vibration system in close vicinity of the melt pool for transmitting high-intensity ultrasonic vibration to the melt pool;applying a compressive thrust load on the sonotrode;synchronizing the sonotrode and the heat source such that the sonotrode and the melt pool travel side-by-side at a fixed distance between them; andapplying ultrasonic vibrations through the sonotrode to transmit the vibrations to the materials under or nearby the sonotrode, including the solidifying material in the melt pool.2. A method of claim 1 , wherein the melt pool is formed by melting solid materials claim 1 , consisting of metallic materials claim 1 , polymers claim 1 , or composite materials claim 1 , using a laser or an electron beam and wherein the solid materials are provided in the form of a wire using a wire feeding mechanism claim 1 , powders using a powder-feeding mechanism claim 1 , or powders in a powder bed.3. A method of claim 1 , wherein the ultrasonic vibration is applied either on the just solidified material close to the edge of the melt pool or partially on the ...

3D Printing Device, 3D Printing System and 3D Printing Method

The three-dimensional printing apparatus includes a main unit and movement means that is connected to the main unit, in which the main unit has a printing unit for printing by laminating a target printing object and a stage portion at a printing locus, the movement means moves the three-dimensional printing apparatus over the printing locus with a stage portion that is printed by the printing unit as a stage, and the printing unit prints at least a part of a target printing object at a position to which the three-dimensional printing apparatus is moved.

HEATER ARRANGEMENTS AND APPARATUS FOR LAYER-BY-LAYER FORMATION OF THREE-DIMENSIONAL OBJECTS

A heater arrangement (′) for an apparatus () for layer-by-layer formation of a three-dimensional object () by the consolidation of particulate matter (), the heater arrangement having a heater arrangement area, and comprising: one or more shrouded radiative heating elements (′), arranged over the heater arrangement area, the shrouded radiative heating elements being operable to heat particulate matter at a build bed surface of said apparatus to a desired temperature profile; and one or more radiation-restricting shrouds (), which are arranged in communication with the shrouded radiative heating elements, and each of which form one or more passages for restricting the solid angle over which radiation is emitted by the shrouded radiative elements, each passage having a first end which opens towards at least one of said shrouded radiative heating elements, and a second end which opens to the exterior. Also provided is apparatus for layer-by-layer formation of a three-dimensional object by the consolidation of particulate matter, the apparatus comprising: a working space having opposing bottom and top sides; a build bed surface on said bottom side of the working space and upon which successive layers of said object are formed, the build bed surface comprising a printable area; and a heater arrangement area on said top side of the working space and comprising a plurality of spaced-apart radiative heating elements arranged on said top side of the working space, the radiative heating elements being operable to heat particulate matter at the build bed surface to a desired temperature profile; wherein said plurality of spaced-apart radiative heating elements comprises a first group of four or more radiative heating elements (); and wherein, as viewed from said top side of the working space, said first group of four or more spaced-apart heating elements is arranged beyond and around the perimeter of printable area and within the heater arrangement area. 1. A heater ...

PART PACKING

Examples of methods for part packing are described herein. In some examples, a first subset and a second subset of a set of parts are determined. In some examples a first packing of the first subset is determined. In some examples, a second packing of the second subset is determined based on the first packing. 1. A method , comprising:determining a first subset and a second subset of a set of parts;determining a first packing of the first subset; anddetermining a second packing of the second subset based on the first packing.2. The method of claim 1 , wherein determining the first subset and the second subset comprises:determining a set of attribute values for each part of the set of parts;determining a score for each part of the set of parts based on each set of attribute values;sorting the set of parts based on the scores; anddetermining the first subset and the second subset based on the sorting.3. The method of claim 2 , wherein the set of attribute values includes a density value and a dimension value for each part.4. The method of claim 2 , wherein the first subset includes up to a threshold number of the set of parts claim 2 , and the second subset is complementary to the first subset in the set of parts.5. The method of claim 4 , wherein the threshold number is determined based on machine learning.6. The method of claim 1 , wherein determining the first packing of the first subset comprises performing a search over a solution space.7. The method of claim 6 , wherein the search is an exhaustive search over the solution space.8. The method of claim 1 , wherein determining the second packing of the second subset of parts comprises performing a search to place the second subset of parts claim 1 , wherein the first packing is fixed.9. The method of claim 8 , wherein the search is a randomized search.10. The method of claim 8 , wherein performing the search produces a set of candidate packings claim 8 , and wherein determining the second packing comprises ...

Recoaters with gas flow management

An additive manufacturing device includes a recoater configured to push powder onto a build platform. The recoater defines an advancing direction for pushing powder. A first baffle is mounted to a first end of a leading edge of the recoater and a second baffle mounted to a second end of the leading edge of the recoater opposite the first end. Each of the first and second baffles includes a base mounted to the recoater, a first wall that extends obliquely ahead of and laterally outward from the base relative to the advancing direction, and a second wall opposite the first wall. The second wall extends obliquely ahead of and laterally inward from the base relative to the advancing direction. A volume is defined between the first and second wall with capacity to collect powder as the recoater advances.

PROCESS FOR ADDITIVE MANUFACTURING AND SYSTEM

The invention relates to a method for additively manufacturing at least one three-dimensional object () by means of a system, wherein a coating unit () is stopped in a segment (A; B; C; D) and/or one of its sub-segments (A; A; B; B; C; C; D; D) as a parking segment. Furthermore, the invention relates to a system for additive manufacturing of three-dimensional objects and a computer-readable storage medium. 1. A method for the additive manufacturing of an object by means of a system which has a building space , a building platform within the building space , on which the object to be manufactured can be built up layer by layer , at least one coating unit for the layer-by-layer application of the build-up material in a building plane , which is provided parallel to the building platform , and at least a first irradiation unit and a second irradiation unit for locally selective solidification of the build-up material in the building plane , subdividing the building space into at least a first and a second segment along a direction of extension of the construction building platform, where at least one of the segments is formed as a single segment or at least one of the segments is subdivided into at least two sub-segments and to each segment and/or the sub-segments of a segment at least one of the irradiation units is assigned;', 'applying at least one layer of the build-up material by means of the coating unit moving along the segments;', 'activating the irradiation unit associated with the respective segment or at least one of the sub-segments for selectively solidifying the segment or at least one of the associated sub-segments as soon as the coating unit has left the respective segment or sub-segment;', 'deactivating the irradiation unit as soon as an irradiation period is reached and the segment or sub-segment is solidified;', 'stopping of the coating unit in any selectively solidified segment or sub-segment of the subsequent segments as a parking segment,, ' ...

Build Material Spreading Apparatuses for Additive Manufacturing

This build material spreading apparatus for additive manufacturing, includes a movable spreader, a build material dispenser, and a controller to calibrate the amount of build material needed to form a layer. The controller controls the build material dispenser to dispense a predetermined amount of build material. The controller controls the movable spreader to spread the dispensed build material to form a layer. The controller determines an amount of build material remaining after spreading. The controller modifies, based on the determined amount of remaining build material, the predetermined amount of build material to be subsequently provided by the build material dispenser.

Powder Distribution for Laser Sintering Systems

There is provided improved laser sintering systems that increase the powder density and reduce anomalies of the powder layers that are sintered, that measure the laser power within the build chamber for automatic calibration during a build process, that deposit powder into the build chamber through a chute to minimize dusting, and that scrubs the air and cools the radiant heaters with recirculated scrubbed air. The improvements enable the laser sintering systems to make parts that are of higher and more consistent quality, precision, and strength, while enabling the user of the laser sintering systems to reuse greater proportions of previously used but unsintered powder.

Fluted additive manufacturing deposition head design

A material deposition head may include a body that defines first and second ends, an exterior surface, an interior surface, and one or more material delivery channels, where the exterior surface includes fluting. In some examples, a system may include a fluted material deposition head, a fluidized powder source, and an energy source.

Apparatus and method for producing work pieces having a tailored microstructure

An apparatus ( 10 ) for producing three-dimensional work pieces comprises a carrier ( 16 ), a powder application device ( 14 ) for applying a raw material powder onto the carrier ( 16 ), an irradiation device ( 18 ) selectively irradiating electromagnetic or particle radiation onto the raw material powder applied onto the carrier ( 16 ), and a control unit ( 38 ) which is adapted to control the operation of the powder application device ( 14 ) and the irradiation device ( 18 ) in dependence of the crystallization behavior of the raw material powder, in order to tailor the microstructure of a work piece made of said raw material powder by a additive layer construction method.

SURGICAL IMPLANT AND METHODS OF ADDITIVE MANUFACTURING

A method of manufacturing a surgical implant includes simultaneously forming a first component and a second component of the surgical implant. Formation of the first and second components includes depositing a first quantity of material to a building platform and fusing the first quantity of material to form a first layer of the first and second components. The method of manufacturing also includes depositing a second quantity of material over the first layer of the first and second components and fusing the second quantity of material to form a second layer of the first and second components. The surgical implant is fully assembled upon the completion of the formation of the first and second components. 1. A method of manufacturing a surgical implant , comprising: depositing a first quantity of material to a building platform;', 'fusing the first quantity of material to form a first layer of the first component;', 'depositing a second quantity of material over the first layer of the first component; and', 'fusing the second quantity of material to the first layer to form a second layer of the first component,, 'forming a first component of the surgical implant, by depositing the first quantity of material to the building platform;', 'fusing the first quantity of material to form a first layer of the second component;', 'depositing the second quantity of material over the first layer of the second component; and', 'fusing the second layer of material to the first layer to form a second layer of the second component, the formation of the first and second components is performed simultaneously, wherein the surgical implant is fully assembled upon the completion of the formation of the first and second components thereof., 'forming a second component of the surgical implant, by2. The method of manufacturing according to claim 1 , further including providing a description of the surgical implant to be manufactured claim 1 , the description of the surgical device ...

APPARATUS FOR ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES

A method for forming at least one three-dimensional article through successive fusion of parts of a powder bed, which parts correspond to successive cross sections of the three-dimensional article, the method comprising the steps of: providing a model of the at least one three-dimensional article; applying a first powder layer on a work table; directing a first energy beam from a first energy beam source over the work table causing the first powder layer to fuse in first selected locations according to corresponding models to form a first cross section of the three-dimensional article, where the first energy beam is fusing at least a first region of a first cross section with parallel scan lines in a first direction; varying a distance between two adjacent scan lines, which are used for fusing the powder layer, as a function of a mean length of the two adjacent scan lines. 1. An apparatus for forming at least one three-dimensional article through successive fusion of parts of a powder bed , which parts correspond to successive cross sections of the three-dimensional article , said apparatus comprising:a control unit having stored thereon a computer model of said at least one three-dimensional article; andat least one energy beam from at least one energy beam source, the at least one energy beam source being at least one of an electron beam or a laser beam, determine a length of at least one of two adjacent of two or more parallel scan lines either applied to the first powder layer or to be applied to the first powder layer;', 'set a distance between the two adjacent of two or more parallel scan lines as a function of the determined length, wherein the function of the determined length is such that as the determined length increases: (a) the distance increases while the determined length is less than a predetermined value, and (b) the distance is a constant value while the determined length is equal to or greater than the predetermined value; and', 'direct the at ...

MAGNETICALLY-DRIVABLE MICROROBOT

A method of making a magnetically-drivable microrobot that is suitable for carrying and delivering cells includes photo-curing a photo-curable material composition to form a body of the magnetically-drivable microrobot. The photo-curable material composition includes a degradable component, a structural component, a magnetic component, and a photo-curing facilitation composition including a photoinitiator component and a photosensitizer component. 1. A method of making a magnetically-drivable microrobot , the method comprising:photo-curing a photo-curable material composition to form a body of the magnetically-drivable microrobot; a degradable component;', 'a structural component;', 'a magnetic component; and', 'a photo-curing facilitation composition comprising a photoinitiator component and a photosensitizer component., 'wherein the photo-curable material composition comprises2. The method of claim 1 , wherein the degradable component comprises poly(ethylene glycol) diacrylate (PEGDA) or like poly(ethylene glycol) (PEG) derivatives.3. The method of claim 1 , wherein the structural component comprises pentaerythritol triacrylate (PETA).4. The method of claim 1 , wherein the magnetic component comprises Fe3O4 particles.5. The method of claim 4 , wherein the Fe3O4 particles comprise Fe3O4 nanoparticles.6. The method of claim 1 , wherein the photo-curing is performed selectively using lithography.7. The method of claim 6 , wherein the photo-curing is performed selectively using 3D laser lithography or multiphoton lithography.8. The method of claim 1 , further comprising coating or applying a photoacoustic imaging contrast agent on at least part of the body.9. The method of claim 8 , wherein the contrast agent comprises gold.10. The method of claim 1 , further comprising forming the photo-curable material composition bymixing the degradable component and the structural component based on a first ratio to form a first mixture, andmixing the first mixture with the ...

THREE-DIMENSIONAL MANUFACTURING METHOD, AND APPARATUS FOR MANUFACTURING THREE-DIMENSIONAL MANUFACTURED OBJECT

A laser beam is irradiated onto material powder on a manufacturing table to solidify the material powder and form a solidified layer. The material powder is further deposited on the solidified layer and the laser beam is irradiated onto one part of the material powder to solidify the material powder. They are repeated to manufacture a manufactured object. An irradiation output value of the laser beam is determined based on measurement information regarding a deposition surface before depositing the material powder or regarding a surface state of the material powder after deposition that is acquired by a camera. Alternatively, the aforementioned irradiation output value is determined based on parity information regarding a number of solidified layers that were already solidified by irradiation of the energy beam, or determined in accordance with an irradiation output value used when solidifying a solidified layer solidified prior to deposition of the deposited material powder. 1. A method for manufacturing a three-dimensional manufactured object that includes a process of irradiating an energy beam onto one part of material powder that is deposited in a manufacturing area to solidify the material powder and form a solidified layer , and further depositing material powder on the solidified layer that is formed and irradiating an energy beam onto one part of the material powder to solidify the material powder , further comprising:measuring a surface state of a deposition surface of a substrate before depositing the material powder, or a surface state of the material powder that is deposited in the manufacturing area, andcontrolling an irradiation output of the energy beam based on the measurement result.2. The method for manufacturing a three-dimensional manufactured object according to claim 1 , wherein a result of measurement of a surface state of the material powder that is deposited in the manufacturing area is a surface state at a specific site of the material ...

PRINT DEAD ZONE IDENTIFICATION

A sensor may be to detect a property indicative of a print dead zone caused by a defect of build material to be used for generating the three-dimensional object or a malfunction of a heater that is to heat the build material, a build material distributor that is to provide the material, or a carriage. A processor may be to receive, from the sensor, dead zone data relating to the print dead zone, and to prevent the malfunction of the heater, the build material distributor, or the carriage, or to modify data representing the three-dimensional object to cause the three-dimensional object to be shifted such that three-dimensional object is to be printed outside the print dead zone. 1. A system comprising:a sensor to detect a property indicative of a print dead zone caused by a defect of build material to be used for generating the three-dimensional object or a malfunction of a heater that is to heat the build material, a build material distributor that is to provide the build material, or a carriage;a processor to receive, from the sensor, dead zone data relating to the print dead zone, and to prevent the malfunction of the heater, the build material distributor, or the carriage, or to modify data representing the three-dimensional object to cause the three-dimensional object to be shifted such that three-dimensional object is to be printed outside the print dead zone.2. The system of wherein the processor is to modify the data representing the three-dimensional object to cause the three-dimensional object to be shifted such that three-dimensional object is to be printed outside the print dead zone.3. The system of wherein the processor is to prevent the malfunction of the heater.4. The system of further comprising the heater claim 1 , wherein the print dead zone is caused by the malfunction of the heater.5. The system of wherein the property is a temperature of the build material.6. The system of wherein the sensor is a scan bar attached to a carriage or a ...

LONG AND HIGH RESOLUTION STRUCTURES FORMED BY ADDITIVE MANUFACTURING TECHNIQUES

A method of additive manufacture suitable for large and high resolution structures is disclosed. The method may include sequentially advancing each portion of a continuous part in the longitudinal direction from a first zone to a second zone. In the first zone, selected granules of a granular material may be amalgamated. In the second zone, unamalgamated granules of the granular material may be removed. The method may further include advancing a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone. 1. An apparatus for additive manufacture in a three-dimensional space corresponding to longitudinal , lateral , and transverse directions that are orthogonal to one another , the apparatus comprising:a conveyor configured to sequentially advance each portion of a continuous part in the longitudinal direction from a first zone to a second zone;an energy patterning system configured to amalgamate, within the first zone, selected granules of a granular material with unamalgamated granules of the granular material removed within the second zone, wherein the conveyor is configured to advance a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone; anda processor configured to determine a current position or orientation of the continuous part by locating one or more features of a feature map in an intersecting wall that intersects two neighboring portions of the continuous part,wherein, in amalgamating the selected granules of the ...

POWDER BED FUSION MODEL AND METHOD OF FABRICATING SAME

Provided are a powder bed fusion model having improved model strength and a method of fabricating the same. Applying a laser beam to a layer of a resin powder () includes: applying the laser beam with a first energy to a modeling area (ma) in the first layer of the resin powder from the bottom among n layers of the resin powder, in the modeling area (ma, ma, ma, ma) in each of the second to (n−1)-th layers of the resin powder, applying the laser beam with the first energy to a projecting portion (PA, PA, PA) projecting outward from at least one of the modeling areas in the vertically adjacent layers of the resin powder and to an overlapping portion (OA, OA, OA) overlapping the modeling areas in the adjacent layers of the resin powder, lying on the inner side of the projecting portion, and having at least a width equal to the thickness of a layer of the resin powder, and applying the laser beam with a second energy lower than the first energy to a center portion on the inner side of the projecting portion and the overlapping portion; and applying the laser beam with the first energy to the modeling area (ma) in the n-th layer of the resin powder. 1. A powder bed fusion model fabrication method of fabricating a model by repeating forming a layer of resin powder and , after the formation of the layer of the resin powder , applying a laser beam to a modeling area in the layer of the resin powder to fuse the resin powder at the modeling area and solidifying the resin powder to form a solidified layer , to thereby form n (n is an integer of 3 or more) layers of the resin powder and laminate n solidified layers in the n layers of the resin powder , whereinthe applying includes:applying the laser beam with a first energy to the modeling area in the first layer of the resin powder from a bottom among the n layers of the resin powder;in the modeling area in each of the second to (n−1)-th layers of the resin powder, applying the laser beam with the first energy to a projecting ...

ENERGY EMITTING APPARATUSES FOR BUILD MATERIAL LAYERS

According to examples, an apparatus may include a back panel to absorb energy and an energy emitter to supply energy onto a build material layer. The energy emitter may include an energy emitting element and an outer tube. In addition, a reflective element may be provided on a portion of the outer tube facing the back panel to direct energy away from the back panel. The apparatus may also include a transparent panel, in which energy from the energy emitter may be emitted through the transparent panel and onto the build material layer. 1. An apparatus comprising:a back panel to absorb energy; an energy emitting element;', 'an outer tube encasing the energy emitting element; and', 'a reflective element provided on a portion of the outer tube facing the back panel to direct energy from the energy emitting element away from the back panel; and, 'an energy emitter to supply energy onto a build material layer, the energy emitter including,'}a transparent panel, wherein energy from the energy emitting element is to be emitted through the transparent panel and onto the build material layer.2. The apparatus of claim 1 , wherein the back panel includes an energy absorbing element to absorb energy having a first range of wavelengths and to emit energy having a second range of wavelengths.3. The apparatus of claim 1 , wherein the back panel comprises a thickness that is to maintain a uniform level of energy dispersion across the back panel.4. The apparatus of claim 1 , wherein the outer tube includes a circular cross sectional shape and wherein the reflective element is provided on a portion of the outer tube that spans between greater than about 180° and less than about 360° relative to a horizontal axis of the outer tube claim 1 , a center of the reflective element facing the back panel.5. The apparatus of claim 1 , further comprising:a plurality of additional energy emitting elements, each of the plurality of additional energy emitting elements including a respective outer ...

SURFACE FEATURE ARRAYS FOR ADDITIVELY MANUFACTURED PRODUCTS

A polymer object includes (a) a body portion having a surface portion thereon; (b) at least a first array of feature elements formed on said surface portion, each of said feature elements comprising: (i) a support structure connected to said surface portion and extending upward therefrom; and (ii) a top segment connected to said support structure, said top structure and said support structure together defining an internal cavity formed therein; (c) said polymer object produced as a single piece object by an additive manufacturing process. 1. A polymer object comprising:(a) a body portion having a surface portion thereon; (i) a support structure connected to said surface portion and extending upward therefrom; and', '(ii) a top segment connected to said support structure, said top structure and said support structure together defining an internal cavity formed therein;, '(b) at least a first array of feature elements formed on said surface portion, each of said feature elements comprising(c) said polymer object produced as a single piece object by an additive manufacturing process.2. The object of claim 1 , wherein said feature elements are configured to deform or collapse by bending and/or buckling upon application of pressure thereto and return to their previous configuration upon removal of such pressure.3. The object of claim 1 , wherein said support structure comprises a circumferential wall or a plurality of arms.4. The object of claim 1 , wherein:(i) all of said feature elements in said array have a same external configuration, and optionally wherein at least some of said feature elements in said array have internal dimensions that differ from that of other feature elements in said array; or(ii) said array comprises a first set of feature elements and a second set of feature elements interspersed with one another, the feature elements of said first set having a height greater than the feature elements of said second set.5. The object of claim 1 , wherein at ...

BUILD SURFACE HEAT CONTROL

There is provided a method and apparatus for controlling heat to a build surface. A thermal profile over the build surface is determined. The determined thermal profile over the build surface is compared with an expected thermal profile over the build surface. Based on the comparison, the determined thermal profile over the build surface or the expected thermal profile over the build surface is selected to control an amount of heat provided by a heating module to the build surface. 1. A method comprising:determining a thermal profile over a build surface;comparing the determined thermal profile over the build surface with an expected thermal profile over the build surface; andbased on the comparison, selecting the determined thermal profile over the build surface or the expected thermal profile over the build surface to control an amount of heat provided by a heating module to the build surface.2. A method according to claim 1 , wherein the thermal profile comprises a temperature over a build surface and a power supplied to the heating module providing heat to the build surface.3. A method according to claim 1 , wherein determining a thermal profile over a build surface comprises determining a temperature profile over the build surface claim 1 , wherein the temperature profile is a temperature distribution over the build surface or a temperature distribution over the build surface over time.4. A method according to claim 3 , wherein comparing comprises:comparing the determined temperature profile over the build surface with an expected temperature profile; and 'based on the comparison, selecting the determined temperature profile over the build surface or the expected temperature profile over the build surface to control an amount of heat provided by the heating module to the build surface.', 'wherein selecting comprises5. A method according to claim 4 , wherein: 'selecting the expected temperature profile over the build surface to control the amount of heat ...

METHOD AND APPARATUS FOR SOLID FREEFORM FABRICATION OF OBJECTS UTILIZING IN SITU INFUSION

A fabrication device includes a platform to receive layers of build material for production of a 3-dimensional solid representation of a digital model, a component to deposit layers of build material, and an imaging component to bind respective portions of the build material into cross sections representative of portions of data contained in the digital model. The first imaging component may be a programmable planar light source or a specialized refractive rastering mechanism, or other imaging system. The platform includes an infusion system for providing photocurable resin to the component being built. The object may be a powder composite component using any of a variety of powder materials or a plastic component. 1. A powder composite fabrication machine comprising:a build platform;a powder transfer device configured to deliver a powder material to the build platform;a resin supply system in communication with the build platform and configured to deliver a photocurable material for infusion into the powder material; andan imaging device positioned above the build platform and configured to selectively irradiate the photocurable material to at least partially solidify a layer of a powder composite component.2. The powder composite fabrication machine of claim 1 , wherein the build platform is selectively movable with respect to the imaging device to accommodate the formation of multiple layers of the powder composite component.3. The powder composite fabrication machine of claim 1 , wherein the powder transfer device comprises a roller that is movable to transfer the powder material from a powder supply chamber to the build platform.4. The powder composite fabrication machine of claim 3 , wherein the roller comprises one of a counter-rotation roller or an electrostatic transfer roller.5. The powder composite fabrication machine of claim 1 , wherein the powder transfer device is configured to deliver powder material from multiple powder sources.6. The powder ...

Compounded copolyamide powders

Compounded copolyamide powders, processes for preparation of compounded copolyamide powders, articles made therefrom and uses.

METHODS AND APPARATUS FOR COMPENSATING FOR THERMAL EXPANSION DURING ADDITIVE MANUFACTURING

Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing method may include forming a part using additive manufacturing. The method may also include bringing the part to a first temperature, measuring the part along at least three axes at the first temperature, bringing the part to a second temperature, different than the first temperature, and measuring the part along the at least three axes at the second temperature. The method may further include comparing the size of the part at the first and second temperatures to calculate a coefficient of thermal expansion, generating a tool path that compensates for the coefficient of thermal expansion, bringing the part to the first temperature, and trimming the part while the part is at the first temperature using the tool path. 120.-. (canceled)21. An additive manufacturing method , comprising:forming a part using additive manufacturing;receiving first size information indicative of a first size of the part at a first temperature;receiving second size information indicative of a second size of the part at a second temperature;modifying a tool path for trimming the part based on the difference between the first size information and the second size information; andtrimming the part using the modified tool path.22. The method of claim 21 , wherein the part is a tool or a mold.23. The method of claim 21 , wherein the second temperature is higher than the first temperature.24. The method of claim 21 , wherein forming the part is performed by an additive manufacturing apparatus having a nozzle configured to deposit beads of thermoplastic material that form the part.25. The method of claim 24 , wherein trimming is performed by a trimming gantry of the additive manufacturing apparatus.26. The method of claim 21 , further including monitoring an ambient temperature and adjusting the modified tool path based on the monitored temperature.27. An additive ...

BUILD MATERIALS FOR ADDITIVE MANUFACTURING APPLICATIONS

A build material for additive manufacturing applications is disclosed. The build material includes a build composition in powder form. The build composition includes a semi-crystalline polymer having a glass transition temperature of at least 60° C. as measured by DSC and a minimum crystallization half-time of greater than 100 minutes as measured by SALS. A semi-crystalline polymer useful in additive manufacturing applications, an additive manufacturing method for producing a three-dimensional object and an additive-manufactured polymer article are also described. 1. A build material for additive manufacturing applications comprising a build composition in powder form , said build composition comprising a semi-crystalline polymer having a glass transition temperature from 60° C. to 200° C. and a minimum crystallization half-time of greater than 100 minutes , wherein said semi-crystalline polymer is a crystallized amorphous polymer having a crystallinity of from 10% to 30% measured as described in the specification.2. The build material of wherein said semi-crystalline polymer is selected from the group consisting of polyamides claim 1 , polyesters claim 1 , polycarbonates claim 1 , acrylics claim 1 , polystyrene claim 1 , polyether ketones and copolymers thereof.3. The build material of wherein said semi-crystalline polymer is a polyester or copolyester.4. The build material of wherein said semi-crystalline polymer is a polycarbonate.5. The build material of further comprising one or more of crystallizing agents such as nucleating agents; colorants; heat stabilizers; light stabilizers; heat absorbing agents such as heat absorbing inks; anti-oxidants claim 1 , flow aids claim 1 , and filler materials such as glass claim 1 , mineral and carbon fibers.6. The build material of wherein said build composition in powder form is present in said build material in an amount of from 40 to 100 volume percent of said build material based on the total volume of the solids ...

THREE-DIMENSIONAL OBJECT PRODUCING METHOD, THREE-DIMENSIONAL OBJECT PRODUCING APPARATUS, AND THREE-DIMENSIONAL OBJECT

Provided is a three-dimensional object producing method for producing a three-dimensional object using primary particles containing at least a ceramic material, the three-dimensional object producing method including: a forming step of forming a layer using secondary particles containing the primary particles and a binder resin; and an applying step of applying a liquid for dissolving the binder resin to the layer formed in the forming step, wherein a central particle diameter of the primary particles is 5 micrometers or less. 1. A three-dimensional object producing method for producing a three-dimensional object using primary particles containing at least a ceramic material , the three-dimensional object producing method comprising:forming a layer using secondary particles containing the primary particles and a binder resin; andapplying a liquid for dissolving the binder resin to the layer formed in the forming,wherein a central particle diameter of the primary particles is 5 micrometers or less.2. The three-dimensional object producing method according to claim 1 ,wherein the central particle diameter of the primary particles is 0.01 micrometers or greater but 1 micrometer or less.3. The three-dimensional object producing method according to claim 1 ,wherein the liquid contains inorganic particles.4. The three-dimensional object producing method according to claim 3 ,wherein a central particle diameter of the inorganic particles is 0.05 micrometers or greater but 0.5 micrometers or less.5. The three-dimensional object producing method according to claim 3 ,wherein a content of the inorganic particles in the liquid is 20% by mass or greater.6. The three-dimensional object producing method according to claim 3 ,wherein the primary particles or the inorganic particles contain at least one selected from the group consisting of alumina, silicon nitride, mullite, zirconia, silicon carbide, tungsten carbide, and aluminum nitride.7. The three-dimensional object producing ...

ADDITIVE MANUFACTURING MACHINE HAVING A COMPACTLY ARRANGED ACTUATOR

An additive manufacturing machine comprises a work surface, a build sleeve (), and a build platform () moving translationally between a raised position and a lowered position under the effect of an actuator (), the platform being connected to the actuator by a support (). The build sleeve () comprises a slot () allowing the support () to pass through the build sleeve to connect the platform to the actuator when the build platform translates from its raised position to its lowered position, a closing-off element () allowing a slot () to be closed off progressively as the platform effects its translational movement inside the sleeve from its raised position to its lowered position, a closing-off element () being a tape (), and the upper end (U) of a closing-off tape being fixed to the upper edge of the build sleeve or to the work surface. 115.-. (canceled)16. A powder bed fusion additive manufacturing machine comprising:a work surface;a build sleeve extending from the work surface and below the work surface; anda build platform moving translationally between a raised position and a lowered position inside the build sleeve under the effect of an actuator,the build platform being connected to the actuator by a support,the build sleeve comprising a slot in its height allowing the support to pass through the build sleeve to connect the build platform to the actuator when the build platform translates from the raised position to the lowered position in the build sleeve,a closing-off element allowing a slot in the build sleeve to be closed off progressively as the build platform effects translational movement inside the build sleeve from the raised position to the lowered position,a closing-off element being a tape,wherein an upper end of the tape is fixed to an upper edge of the build sleeve or to the work surface.17. The powder bed fusion additive manufacturing machine according to claim 16 , wherein a bottom end of the tape is connected to a tape tensioning device.18. ...

Additive manufacturing systems and methods including build characteristic contribution profile

An additive manufacturing system includes a control system communicatively coupled to a consolidation device and configured to control operation of the consolidation device. The control system is configured to generate a model of a component. The model includes a plurality of elements and at least one region of interest. The control system is also configured to apply a strain load to at least one element of the plurality of elements and generate a build characteristic contribution profile for at least one element of the plurality of elements. The build characteristic contribution profile represents an effect of the strain load applied to the at least one element on a build characteristic of at least one location within the at least one region of interest. The control system is further configured to adjust a build parameter for a location within the component relating to the at least one element of the plurality of elements based on the build characteristic contribution profile.

METHOD FOR ADDITIVE MANUFACTURE, AND SYSTEM

A method for the additive manufacture of at least one three-dimensional object by means of a system, wherein a coating unit is moved onward through any number of segments and/or subsegments such that the coating unit performs at least one idle run. A system for the additive manufacture of three-dimensional objects, and a computer-readable storage medium are also disclosed. 1. A method for additive manufacturing of three-dimensional objects by a system comprising a build space , a build platform within the build space , on which the at least one object to be manufactured can be built up layer by layer , at least one coating unit for applying the build-up material layer by layer in a build plane which is provided parallel to the build platform , and at least a first irradiation unit and a second irradiation unit for locally selective solidification of the build-up material in the build plane , the method comprising:subdividing the build space into at least a first and a second segment along an extension direction of the build platform, wherein at least one of the segments is formed as a single segment or is subdivided into at least two subsegments and each segment or the subsegments of one of the segments assigned to one of the irradiation units;moving the at least one coating unit in the build space along the segments at a constant speed;applying at least one layer of the build-up material by using the at least one coating unit;activating the assigned irradiation unit in the respective segment or subsegment after the at least one layer of build-up material in the respective segment or subsegment is applied, the applied layer of build-up material is not yet selectively solidified and the at least one coating unit has left the segment or subsegment; anddeactivating the application of build-up material by the at least one coating unit after the application of at least one layer of the build-up material, wherein the at least one coating unit is moved on through any ...

Kinetic disassembly of support structure system for additively manufactured rotating components

A rotary component may comprise a first structure configured to rotate about an axis and a second structure configured to rotate about the axis. A support structure may be coupled to the first structure at a first attachment location and to the second structure at a second attachment location. The support structure may be configured to separate from the first structure and the second structure in response to a centrifugal force generated by the first structure and the second structure rotating about the axis.

THERMOPLASTIC POLYMER POWDERS AND USE THEREOF FOR SELECTIVE LASER SINTERING

The invention relates to a thermoplastic polymer powder and to the use thereof as material for selective laser sintering (SLS). The polymer powder contains a semi-crystalline polyolefin, an amorphous styrene-polymer and a selected polymeric compatibilizer, in addition to optionally further additives and/or auxiliary agents. The semi-crystalline polymer, amorphous polymer and selected polymeric compatibilizer are present in the polymer powder in the form of a polymer blend. The invention also relates to a method for producing the thermoplastic polymer powder and to a method for selective laser sintering (SLS) using the polymer powder according to the invention. 115-. (canceled)16. A thermoplastic polymer powder P comprising:(A) 10% to 89.9% by weight, based on the overall polymer powder P, of at least one semicrystalline polyolefin A;(B) 10% to 89.9% by weight, based on the overall polymer powder P, of at least one amorphous styrene polymer B;(C) 0.1% to 20% by weight, based on the overall polymer powder P, of at least one compatibilizer C selected from the group consisting of styrene-butadiene block copolymers, styrene-polyolefin copolymers, acrylonitrile-styrene-polyolefin copolymers, and acrylonitrile-styrene-butadiene-polyolefin copolymers;(D) optionally 0% to 5% by weight, based on the overall polymer powder P, of at least one additive and/or auxiliary;wherein the sum total of the percentages by weight of components A, B, C, and, optionally, D together is 100% by weight;wherein the semicrystalline polymer A, the amorphous styrene polymer B, and the compatibilizer C are in the form of a polymer blend;{'sub': '50', 'and wherein the thermoplastic polymer powder P has a median particle diameter Din the range from 5 to 200 μm.'}17. The thermoplastic polymer powder P of claim 16 , wherein the semicrystalline polyolefin A is at least one polymer selected from the group consisting of polyethylene claim 16 , polypropylene claim 16 , and polypropylene-polyethylene ...

Material feeder of additive manufacturing apparatus, additive manufacturing apparatus, and additive manufacturing method

According to one embodiment, a material feeder includes a feeding unit. The feeding unit includes a container that is containable of a powdery material and a first wall that is provided with a plurality of first openings communicated with the container and at least partially covers a region to which the material is fed, the feeding unit feeding the material in the container from the first openings to the region to form a layer of the material.

Selective solidification apparatus and methods

This invention concerns a selective solidification apparatus including a build chamber, a build platform lowerable in the build chamber, a wiper for spreading powder material across the build platform to form successive powder layers of a powder bed, an energy beam unit for generating an energy beam for consolidating the powder material, a scanner for directing and focussing the energy beam onto each powder layer and a processor for controlling the scanner. The processor is arranged to control the scanner to scan the energy beam across the powder bed to consolidate powder material either side of the wiper when the wiper is moving across the powder bed and to scan the energy beam across at least one of the powder layers during two or more strokes of the wiper across the powder bed.

TEETH CLEANING DEVICE

A teeth cleaning device for simultaneously cleaning multiple teeth, of a user includes a mouth insert for inserting into the mouth of the user, a plurality of cleaning structures attached to the mouth insert or integrally formed together with the mouth insert, a coupling element attached to the mouth insert; a drive device. The drive device includes a vibration motor, which can be connected to the coupling element such that the vibration motor vibrates the mouth insert during the operation of the teeth cleaning device, and a cleaning program selection element for selecting a cleaning program that defines a vibration frequency of the vibration motor within a specified frequency range and/or a vibration amplitude of the vibration motor within a specified amplitude range. The disclosure further relates to a method for producing such a teeth cleaning device. 1. A teeth cleaning device for the simultaneous cleaning of a plurality , preferably all of the teeth of a user , comprising:a mouth insert for insertion into a mouth of the user;a plurality of cleaning structures attached to the mouth insert or constructed in one piece with the mouth insert;a coupling element attached to the mouth insert; anda drive device having:a vibration motor, which can be connected to the coupling element in such a manner that the vibration motor sets the mouth insert vibrating during the operation of the teeth cleaning device, anda cleaning program selection element for selecting a cleaning program, which defines a vibration frequency of the vibration motor within a predetermined frequency range and/or a vibration amplitude of the vibration motor within a predetermined amplitude range.2. The teeth cleaning device according to claim 1 , wherein the predetermined frequency range lies between approximately 1500 and approximately 41 claim 1 ,000 oscillations per minute.3. The teeth cleaning device according to claim 1 , wherein the cleaning program selection element comprises a frequency ...

Spinal Implant And Method For Fabricating The Same

A spinal implant is provided that includes a body extending in direction at least substantially along a body axis, between a first end portion and a second end portion. The spinal implant also includes a first bearing surface disposed relative to the first end portion, and defining a first relief pattern that is configured to inhibit movement of the spinal implant relative to one or more vertebrae in at least substantially all directions. A method for manufacturing the spinal implant involves use of selective laser sintering. 1. A medical implant , comprising:a body extending between a first end portion and a second end portion thereof;a first bearing surface disposed relative to the first end portion;the first bearing surface defining a plurality of protrusions which each extend along a respective protrusion axis that passes through a respective apex of the respective protrusion;wherein the respective protrusion axes extend in different random directions towards and/or away from a same body axis extending between the first end portion and the second end portion of the body.2. The medical implant of claim 1 , the plurality of protrusions comprising a first pair protrusions claim 1 , a second pair of protrusions claim 1 , and a third pair of protrusions.3. The medical implant of claim 2 , wherein the each of the first pair of protrusions are adjacent to each other claim 2 , each of the second pair of protrusions are adjacent to each other claim 2 , and each of the third pair of protrusions are adjacent to each other.4. The medical implant of claim 3 , wherein an angle β is formed between the first pair of protrusions claim 3 , an angle α is formed between the second pair of protrusions claim 3 , and an angle γ is formed between the third pair of protrusions.5. The medical implant of claim 4 , wherein each of the angle β claim 4 , α claim 4 , γ are different.6. The medical implant of comprising polyaryletherketone (PAEK).7. The medical implant of comprising one or ...

Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus

In a three-dimensional laminating and shaping apparatus, a material is quantitatively spread without clogging a supply port with the material. The three-dimensional laminating and shaping apparatus includes a material spreader that spreads a material of a three-dimensional laminated and shaped object on a spread surface, and includes at least one tapered portion in which a diameter decreases from an upstream side to a downstream side. The three-dimensional laminating and shaping apparatus also includes at least one vibration ball that is arranged in the tapered portion of the material spreader and vibrates, and a vibration controller that controls vibration of the vibration ball.

PROCESS FOR FORMING POLYMERIC PARTS UNDER VACUUM CONDITIONS

A system for fabricating a part () comprises a build chamber (), a powder feed system () for feeding a polymeric powder () to the build chamber, a heating system () for melting and fusing the polymeric powder to form a fused polymeric part in the build chamber, and a vacuum system () to apply a specified vacuum pressure to the build chamber, wherein the vacuum pressure is at or below a threshold pressure so that a porosity of the fused polymeric part is at or below a specified threshold porosity. 1. A system for fabricating a part comprising:a build chamber comprising a mold, the mold comprising a mold cavity, the mold cavity including a vacuum outlet;a powder feed system for feeding a polymeric powder to the build chamber wherein the polymeric powder is an amorphous polymeric powder;a heating system for melting and fusing the polymeric powder to form a fused polymeric part in the build chamber;a rotational mechanism to rotate the mold during heating; anda vacuum system capable of applying a pressure at or below −20 inches mercury, the vacuum outlet being in fluid communication with the mold cavity and with a vacuum system, the vacuum system to apply a specified vacuum pressure of at or below about −20 inches mercury to the build chamber by drawing the specified vacuum pressure through the vacuum outlet, wherein the vacuum pressure is at or below a threshold pressure so that a porosity of the fused polymeric part is at or below a specified threshold porosity, wherein the specified threshold porosity is 15% by volume or less.2. The system according to claim 1 , wherein the polymeric powder comprises polycarbonate powder.3. The system according to claim 1 , wherein the heating system comprises an oven for heating the mold to melt the polymeric powder in the mold.4. (canceled)5. The system according to claim 1 , wherein the heating system comprises a laser system comprising:a laser to emit a focused energy beam onto a target area within the build chamber, anda laser- ...

Porous structure and methods of making same

The present disclosure allows for more controlled modification of the input data to a Rapid Manufacturing Technologies (RMT) machinery to compensate for systematic error of the manufacturing process, such as directional build discrepancies, by performing the opposite effect to the input data. The modification is achieved with minimal unwanted distortions introduced to other portions of the structure to be built by decoupling the global scaling effects on the whole structure from the desired local effects on certain portions.

ADDITIVE MANUFACTURING COMPOSITION

An additive manufacturing composition for powder bed processes is described. The composition includes at least a first type of impact modified polymer beads. The polymer beads include a) an acrylic or vinyl (co)polymer matrix, and b) an impact modifier in which at least 85% w/w of the first type of impact modified polymer beads have a particle size of between ≥20 μm and ≤200 μm and/or wherein on average the impact modified polymer beads have greater than 5% w/w impact modifier. Also disclosed is an additive manufacturing process for a production of a three dimensional product comprising fused impact modified polymer particles. The use of a composition in additive manufacturing, an additive manufacturing cartridge or replacement hopper and a process for the production of impact modified polymer beads by a suspension polymerization process is also disclosed. 2. The composition according to claim 1 , wherein at least 85% w/w of the first type of impact modified polymer beads have a particle size of between ≥20 μm and ≤125 μm.3. An additive manufacturing composition comprising at least a first type of impact modified polymer beads claim 1 , wherein the said polymer beads comprisea) an acrylic or vinyl (co)polymer matrix, andb) an impact modifier; wherein on average the said impact modified polymer beads comprise greater than 5% w/w impact modifier.4. The additive according to claim 3 , wherein at least 85% w/w of the first type of impact modified polymer beads have a particle size of between ≥20 μm and ≤200 μm.5. The composition according to claim 1 , wherein the d50 particle size of the first type of impact modified polymer beads is ≥40 μm and ≤90 μm.6. The composition according to claim 1 , wherein the impact modifier is selected from the group consisting of acrylic claim 1 , styrene claim 1 , silicone claim 1 , nitrile rubber claim 1 , isoprene claim 1 , butadiene claim 1 , isobutylene and aliphatic polyurethane claim 1 , polyether oligomer and polyester oligomer ...

Ledge forming system for producing a conjunct nozzle

A novel ledge forming system used to attach a polymer retention hub to a thin wall nozzle core to provide an efficient way to produce a conjunct nozzle. The inventive apparatus provides a means for assembly of components by a method involving use of a press with a heating element to elevate temperature of a thermoplastic polymer to permit formation of a ledge that overhangs the flange of a nozzle core, mechanically locking components together. Execution of the process is rapid, low cost and eliminates damage to the thin wall of the core that would occur if the polymer retention hub were molded around the nozzle core. 1. A forming tool apparatus for a press having a heating element , comprising:a) a cylindrical housing with a deep counter-bore on one end having a shallow circular depression opposite end of said deep counter-bore and a small diameter hole through a wall in-between each end that separates said deep counter-bore end from said shallow circular depression end;b) a button with a large diameter side and a small diameter side slideably fit inside said deep counter-bore end and into said small diameter hole;c) a force compliant member fit inside said deep counter-bore end presses against said button on said large diameter side;d) a threaded cap fit into said deep counter-bore end pushes against said force compliant member; ande) a support block below that contains a nest having a through hole located in center of said nest.2. The forming tool apparatus for the press having the heating element of claim 1 , wherein said cylindrical housing is made of a metal known to be highly thermally conductive.3. The forming tool apparatus for the press having the heating element of claim 1 , wherein said button is made of non-thermally conductive material.4. The forming tool apparatus for the press having the heating element of claim 1 , wherein components of said cylindrical housing and said support block having said nest are coaxially aligned.5. The forming tool ...

3D PRINTER

A 3D printer including two tanks, a powder spreading mechanism and a transport assembly is provided. A tank opening is defined on each tank, and an elevating mechanism is arranged in each tank. The powder spreading mechanism is able to move across the tank openings, one of the tanks contains powders for supplying the powders, and the powder spreading mechanism push the powders into the other tank. The transport assembly includes a carrying plate and a covering case, the carrying plate is arranged on the elevating mechanism in the tank for powder supplying, multiple insertion holes are defined at the carrying plate, a case opening is defined at the covering case, the covering case covers on the corresponding tank opening, multiple movable latches for correspondingly inserted in the respective insertion holes are arranged at the case opening, and the powders are allowed to be contained in the covering case. 1. A 3D printer , comprising:two tanks, a tank opening being defined on a top of each tank, and an elevating mechanism being arranged in each tank and movable between the tank opening and a bottom of the corresponding tank;a powder spreading mechanism arranged corresponding to the tank openings and being movable across an area defined by the tank openings, one of the tanks contains powders for supplying the powders, and the powder spreading mechanism pushes the powders into the tank opening of the other tank for a modeling process; anda transport assembly comprising a carrying plate and a covering case, the carrying plate being detachably arranged on the elevating mechanism in the tank for supplying the powder, a plurality of insertion holes being defined at an edge of the carrying plate, a case opening being defined at bottom of the covering case, the covering case covering on the corresponding tank opening and the tank opening being communicated with the corresponding case opening, the case opening being of a shape corresponding to the carrying plate, a plurality ...

METHOD FOR ADDITIVELY MANUFACTURING COMPONENT AND COMPONENT MADE THEREFROM

A method that includes additively manufacturing with an additive manufacturing (AM) system a sub-component that has a locator element. Using a control system of the AM system for positioning a first location of the locator element. Selectively placing a portion of another sub-component adjacent to the locator element, based on the positioning. Then attaching the second sub-component to the first sub-component in a region, wherein the region is based on the positioning knowledge from the control system so as to make a component. A component that comprises a first sub-component that has an AM locator element; and a second sub-component attached to the first sub-component, wherein the locator element is attached to the second sub-component within the same additive manufacturing build chamber as the first sub-component. 122-. (canceled)23. A component comprising:a first sub-component, wherein the first sub-component has an additively manufactured locator element: anda second sub-component attached to the first sub-component, wherein the additively manufactured locator element is attached to the second sub-component within the same additive manufacturing build chamber as the first sub-component.24. The component of claim 23 , wherein at least one of the first and second sub-components has at least one substantially downward facing surface.25. The component of claim 24 , wherein the at least one substantially downward facing surface comprises a portion of one of: a tube claim 24 , an arch claim 24 , a sculpted surface claim 24 , and an overhang.26. The component of claim 23 , the first sub-component comprises a support element and the second sub-component comprises a bearing surface configured to bear on the support element.27. The component of claim 26 , the support element and the bearing surface define a connection region claim 26 , wherein the connection region is thermally welded.28. The component of claim 27 , wherein the connection region is thermally welded with a ...

RIGID RESORBABLE MATERIALS WITH POLYMER AND ORGANIC FILLERS

This invention relates to the composition of flexible resorbable polymers with rigid resorbable fillers. The invention further relates to processing of flexible resorbable polymers with rigid resorbable fillers. The invention relates also to the use of such materials for applications in fast degradation applications. The invention also relates to the composition of flexible resorbable polymers with rigid resorbable for making shape memory materials. This invention also related to the processing of such materials by extrusion, injection molding, thermoforming, solvent mixing, and additive manufacturing. The invention also relates to the use of such materials as bone filler, vascular closure and other hemostasis devices, aneurysms, and stent applications. The invention also relates to the use of such materials as drug delivery platforms. 1. A resorbable material exhibiting a shape memory effect comprising a flexible resorbable polymer and at least one rigid resorbable filler.2. The flexible resorbable polymer of is a semi-crystalline polymer.3. The flexible resorbable polymer of is an amorphous polymer.4. The flexible resorbable polymer of is a polydioxanone claim 2 , a polycaprolactone claim 2 , a poly(orthoester) claim 2 , a poly(phosphazene) claim 2 , a poly(hydroxybutyrate) claim 2 , a biodegradable polyurethane claim 2 , a poly(amino acid) claim 2 , a polyetherester claim 2 , polyphosphoesters claim 2 , a polyanhydride claim 2 , a multi-block copolymer of polydioxanone-b-polycaprolactone claim 2 , a multi-block copolymer of poly(lactide-b-trimethylene carbonate) claim 2 , a multi-block copolymer of poly(glycolide-b-trimethylene carbonate) claim 2 , a multi-block copolymer of poly(lactide-b-caprolactone) claim 2 , a polyethylene glycol (PEG) claim 2 , a multi-block copolymer of polylactide-b-PEG claim 2 , a multi-block copolymer of PGA-b-PEG claim 2 , a multi-block copolymer of PCL-b-PEG claim 2 , a multi-block copolymer of PDO-b-PEG claim 2 , a multi-block ...

COMPOSITE PARTICLES, COMPOSITE POWDER, METHOD FOR MANUFACTURING COMPOSITE PARTICLES, AND METHOD FOR MANUFACTURING COMPOSITE MEMBER

The present invention pertains to high-strength/high-ductility alloys, and in particular, provides high-strength composite particles comprising a ceramic phase and a metal phase, a composite powder, a method for manufacturing composite particles, and a method for manufacturing a composite member. Composite particles including a ceramic phase and a metal phase, wherein the composite particles are characterized in that the porosity is no greater than 45% in area ratio in cross-section, and the area ratio of the metal phase, where the total area of the ceramic phase and the metal phase is 100%, is at least 20%. A composite powder characterized in including a plurality of the composite particles. 1. A composite particle comprising a ceramic phase and a metal phase ,wherein a porosity is not more than 45%, by area, in a cross section of the composite particle, andwherein an area ratio of the metal phase is not less than 20% in relation to a total area of the ceramic phase and the metal phase.2. The composite particle according to claim 1 , wherein an area ratio of the ceramic phase in relation to a total area of the ceramic phase and the metal phase in a cross section of a region within 0.03*d from a surface of the particle claim 1 , where “d” is a diameter of an approximate circle of a composite particle claim 1 , is greater than an area ratio of the ceramic phase in relation to a total area of the ceramic phase and the metal phase over an entire cross sectional area of the composite particles.3. A composite powder comprising a plurality of the composite particles according to .4. The composite powder according to claim 3 , wherein D50 of the powder is 30 to 150 μm in a volume cumulative particle size distribution of the powder.6. The method according to claim 5 , wherein the ceramic powder has an average particle size of 0.1 to 20 μm.7. A method for manufacturing a composite member through an additive manufacturing method claim 3 , wherein the additive manufacturing ...

ROTARY SILO ADDITIVE MANUFACTURING SYSTEM

A rotary additive manufacturing system for producing 3D parts in a layer-wise manner includes a silo support, a tool support, a plurality of silos, and a part developer. The tool support overlays a first side of the silo support, and is configured to rotate about a central axis relative to the silo support. The silos are each attached to the silo support and extend along the central axis from a second side of the silo support that is opposite the first side. The part developer is supported by the tool support, and is configured to build a 3D part within each of the silos in a layer-by-layer manner during rotation of the tool support relative to the silo support. 1. A rotary additive manufacturing system for producing 3D parts in a layer-wise manner comprising:a silo support;a tool support overlaying a first side the silo support and configured to rotate about a central axis relative to the silo support;a plurality of silos attached to the silo support, each of the silos extending along the central axis from a second side of the silo support that is opposite the first side; anda part developer supported by the tool support and configured to build a 3D part within each of the silos in a layer-by-layer manner during rotation of the tool support relative to the silo support.2. The system according to claim 1 , wherein the part developer comprises a selective excitation device configured to selectively heat part portions of a build layer of build material in each silo to form a layer of the corresponding part.3. The system according to claim 2 , wherein the selective excitation device comprises a plurality of laser sources configured to direct electromagnetic energy to the part portions of the build layers.4. The system according to claim 2 , wherein the excitation device comprises at least one laser source and a laser director configured to direct electromagnetic energy from the at least one laser source to the part portions of the build layers to form the layer of the ...

Three Dimensional (3D) Printer with High Resolution Light Engine

A three dimensional printing system for manufacturing a three dimensional article includes a build platform, a light engine, and a controller. The build platform is coupled to a vertical positioning apparatus. The light engine is configured to generate and scan a columnar array of light spots across a build plane. The columnar array of light spots are arranged along a second axis. The light spots are scanned along a first axis. The build plane is laterally defined by mutually perpendicular X and Y axes. In the build plane, the first axis is parallel to the X-axis. 1. A three dimensional (3D) printing system for manufacturing a three dimensional article comprising:a build platform coupled to a vertical positioning apparatus;a light engine that scans an array of light spots across a build plane, scanning is along a first axis and the array of light spots is arranged along a second axis, build plane locations are laterally defined by an X-axis and a Y-axis, the first axis is parallel to the X-axis; (1) operate the vertical positioning apparatus to position a top surface above the build platform proximate to the build plane;', '(2) dispense a layer of build material over the top surface;', (a) scan the light spots over the build plane, the scanning light spots image the build material along stripes that are parallel to the X-axis and are separated from each other along the Y-axis leaving unimaged stripes between the imaged stripes; and', '(b) repeat (a) one or more times with the light spots shifted in Y in order to image the unimaged stripes; and, '(3) operate the light engine to, '(4) repeat steps (1)-(3) until the three dimensional article is formed., 'a controller configured to2. The three dimensional printing system of further comprising a material dispenser that dispenses the layer of build material over the top surface.3. The three dimensional printing system of wherein operation of vertical positioning apparatus facilitates dispensing of the layer of build ...

Method For Printing A 3D Product And A 3D Printing Device

The present disclosure relates to a method for manufacturing one or more 3D products by additive manufacturing using a layer-by-layer technique and a 3D printing device. The method comprises the steps of; setting a first thickness of a reference layer and forming one or more material layer having a second thickness. The second thickness is set as a multiple of an integer and said first thickness of the reference layer, and performing a binding action on said material layer. 1. A method for manufacturing a batch of one or more 3D products by additive manufacturing using a layer-by-layer technique , said method comprising the steps of:a) setting a first thickness of a reference layer;b) selecting a first resolution by setting a second thickness as a multiple of an integer and said first thickness of said reference layer;c) forming a material layer having said second thickness; and 'wherein steps (c) and (d) are performed one or more times, thereby forming a first zone in said batch, said first zone having said first resolution.', 'd) performing a binding action on said material layer;'}2. The method according to claim 1 , whereby said integer is of from 1 claim 1 , 2 claim 1 , 3 claim 1 , 4 claim 1 , 5 claim 1 , 6 claim 1 , 7 claim 1 , 8 claim 1 , 9 claim 1 , 10 or more claim 1 , preferably 1 claim 1 , 2 claim 1 , 3 claim 1 , 4 claim 1 , 5 claim 1 , 6 claim 1 , 7 claim 1 , 8 claim 1 , 9 claim 1 , 10 or more claim 1 , more preferably within the range of 1-10 000 claim 1 , or 1-5000 claim 1 , or 1-1000 claim 1 , or 1-100.3. The method according to claim 1 , whereby a first 3D product in said batch is at least partly formed by material layers having said first thickness claim 1 , and whereby a second 3D product in said batch is at least partly formed by material layers having said second thickness.4. The method according to claim 1 , whereby said first thickness of said reference layer is set as a minimal thickness available for a material layer.5. The method according ...

RESIN POWDER FOR PRODUCING THREE-DIMENSIONAL OBJECT, THREE-DIMENSIONAL OBJECT PRODUCING METHOD, AND THREE-DIMENSIONAL OBJECT PRODUCING APPARATUS

Provided is a resin powder for producing a three-dimensional object, wherein the resin powder has a number-average equivalent circle diameter of 10 micrometers or greater but 150 micrometers or less, and wherein a median in an equivalent circle diameter-based particle size distribution of the resin powder is higher than the average equivalent circle diameter. 1. A resin powder for producing a three-dimensional object ,wherein the resin powder has a number-average equivalent circle diameter of 10 micrometers or greater but 150 micrometers or less, andwherein a median in an equivalent circle diameter-based particle size distribution of the resin powder is higher than the average equivalent circle diameter.2. The resin powder for producing a three-dimensional object according to claim 1 ,wherein particles of the resin powder comprise columnar particles.3. The resin powder for producing a three-dimensional object according to claim 2 ,wherein the columnar particles have a cylindrical length of 10 micrometers or greater but 150 micrometers or less and a cylindrical diameter of 10 micrometers or greater but 150 micrometers or less.4. The resin powder for producing a three-dimensional object according to claim 1 ,wherein the resin powder has an average circularity of 0.75 or higher but 0.90 or lower.5. The resin powder for producing a three-dimensional object according to claim 1 , the resin powder comprisinga crystalline resin,wherein the crystalline resin comprises at least one selected from the group consisting of polyolefin, polyamide, polyester, polyaryl ketone, and polyphenylene sulfide.6. The resin powder for producing a three-dimensional object according to claim 5 ,wherein the polyester comprises at least one selected from the group consisting of polyethylene terephthalate, polybutadiene terephthalate, and polylactic acid.7. A three-dimensional object producing method comprising:forming a layer that comprises a resin powder for producing a three-dimensional object ...

METHODS AND APPARATUS TO IDENTIFY ADDITIVELY MANUFACTURED PARTS

Methods and apparatus to identify additively manufactured parts are disclosed. An example apparatus includes a body, formed of layers layered substantially parallel to a base layer, composed of a first material having a first density, a first indicium embedded internally in the body as a void, and a second indicium on an external surface of the body, the second indicium aligning with the first indicium. 1. An apparatus , comprising:a body, formed of layers layered substantially parallel to a base layer, composed of a first material having a first density;a first indicium embedded internally in the body as a void; anda second indicium on an external surface of the body, the second indicium aligning with the first indicium.2. The apparatus of claim 1 , wherein the void is filed with a second material claim 1 , the second material having a second density claim 1 , the second density different than the first density.3. The apparatus of claim 2 , wherein the first material is completely fused powder material and the second material is a not completely fused powder material.4. The apparatus of claim 1 , wherein the layers are composed of a UV solidified plastic.5. The apparatus of claim 2 , wherein the second material is a support material.6. The apparatus of claim 2 , wherein the second material is a same material as the first material claim 2 , the second material having the second density.7. The apparatus of claim 1 , wherein the first indicium is at least one of a logo claim 1 , a serial number claim 1 , a trademark claim 1 , a barcode claim 1 , or a QR code.8. The apparatus of claim 1 , wherein the alignment of the first indicium and the second indicium enables an identification of the apparatus.9. The apparatus of claim 1 , wherein the second indicium is at least one of a watermark claim 1 , a hologram or an etching.10. The apparatus of claim 1 , wherein the layers are (1) composed of at least one of a paper claim 1 , a metal plate claim 1 , or a metal foil and (2) ...

ADDITIVE-MANUFACTURING SYSTEMS AND METHODS

An additive manufacturing system and method includes a powder bed, an additive manufacturing head that is configured to emit a first energy into the powder bed to form at least one layer of a component, a part exposing mechanism that is configured to operate so that the component is in a first position at a first time within the powder bed, and a second position at a second time in which a portion of the component is exposed outside of the powder bed, and a surface smoothing head that is configured to emit a second energy onto the portion of the component in the second position to smooth the portion of the component. 1. An additive manufacturing system comprising:a powder bed;an additive manufacturing head that is configured to emit a first energy into the powder bed to form at least one layer of a component;a part exposing mechanism that is configured to operate so that the component is in a first position at a first time within the powder bed, and a second position at a second time in which a portion of the component is exposed outside of the powder bed; anda surface smoothing head that is configured to emit a second energy onto the portion of the component in the second position to smooth the portion of the component.2. The additive manufacturing system of claim 1 , further comprising a container defining a forming chamber.3. The additive manufacturing system of claim 2 , wherein the part exposing mechanism is on or within the container.4. The additive manufacturing system of claim 1 , wherein the additive manufacturing head is one of fixed in position claim 1 , or moveable.5. The additive manufacturing system of claim 1 , wherein the additive manufacturing head is configured to emit the first energy as one or more laser beams.6. The additive manufacturing system of claim 1 , wherein the surface smoothing head is one of fixed in position or moveable.7. The additive manufacturing system of claim 1 , wherein the surface smoothing head is configured to emit the ...

OPTIMISATION OF THE SUPPORTS FOR THE ADDITIVE MANUFACTURING OF A COMPONENT WITH A RECESS

A method for obtaining, by additive manufacture, a component including at least one recess, this method including: a step of forming, by additive manufacture, a one-piece blank component, in which the at least one recess contains a support including a core in the form of a block of material and cellular elements that connect the core to the recess; and a step of detaching the support from the rest of the blank component in order to expose the recess. 127. A method for obtaining , by additive manufacturing , a component including at least one recess () , including: [{'b': 57', '58', '57, 'at least one recess comprises an upper inner portion () that needs to be supported, and a lower inner portion () opposite this upper inner portion (), and'}, {'b': 60', '61', '66', '1', '2', '1', '58', '61', '2', '61', '57, 'a support () is formed in said at least one recess, this support including a core () provided with a hole () and cellular elements (S; S) including at least one lower module (S) that connects the lower inner portion () to the core (), and an upper module (S) that connects the core () to the upper inner portion ();'}], 'a step of forming a one-piece blank component by additive manufacturing on a build plate (T), during which{'b': 60', '27, 'claim-text': [{'b': 69', '67', '66, 'an engagement of an insertion end () of a tool () in the hole (), then'}, {'b': 61', '67', '1', '2', '61, 'a rotation of the core () by the tool () inducing a rupture of the lower and upper modules (S, S) for the extraction of the core ().'}], 'a step of detaching the support () from the rest of the blank component in order to expose the recess (), comprising2601227. The method according to claim 1 , wherein the step of detaching the support () includes a finishing step to suppress residues from lower and upper modules (S claim 1 , S) remained attached to the recess ().3. The method according to claim 1 , wherein:{'b': 1', '58', '64', '58, 'the lower module (S) is erected from all or at ...

IN SITU PARTIALLY DEGRADABLE SEPARATION INTERFACE FOR FABRICATION OF COMPLEX NEAR NET SHAPE OBJECTS BY PRESSURE ASSISTED SINTERING

The invention relates to a process for fabricating complex mechanical shapes, and in particular to fabricating complex mechanical shapes using a pressure-assisted sintering technique to address problems relating to variations in specimen thickness and tooling, or densification gradients, by 3-D printing of a polymer model that is surrounded by and filled with sintering powder material, wherein the 3-D polymer model decomposed into a graphite interface layer and facilitates release of the cast, e.g. metal, metal-alloy, ceramic, etc., manufactured item. 1. A process for producing a sintered powder manufactured item , comprising the steps:{'b': '1', 'STEP —performing 3D printing of a polymer shell model, of a manufactured item;'}{'b': '2', 'STEP —placing the polymer shell model in a die chamber having a tool punch;'}{'b': '3', 'STEP —loading powder sintering material into the die chamber around the polymer shell model and within any cavities of the polymer shell model;'}{'b': '4', 'STEP —vacuum or oxygen/hydrogen free atmosphere heating of the powder-encased polymer shell model to decompose the polymer shell model creating a graphite interface layer;'}{'b': '5', 'STEP —sintering of the powder assembly; and'}{'b': '6', 'STEP —releasing a sinter-powder cast manufactured item from a sacrificial outer part of sintered powder.'}2. The process of claim 1 , wherein the polymer is selected from the group consisting of acrylonitrile butadiene styrene (ABS) claim 1 , polycarbonate (PC) claim 1 , polylactic acid (PLA) claim 1 , high-density polyethylene (HDPE) claim 1 , PC/ABS claim 1 , polyphenylsulfone (PPSU) claim 1 , high impact polystyrene (HIPS) claim 1 , and combinations thereof.3. The process of claim 1 , wherein the powder sintering material is selected from the group consisting of stainless steel powder claim 1 , titanium alloy powder claim 1 , nickel alloy powder claim 1 , chromium alloy powder claim 1 , and aluminum alloy powder.4. The process of claim 1 , wherein the ...

Lamination molding apparatus

A lamination molding apparatus capable of stably supplying material powder on a molding table. Provided is a lamination molding apparatus including a chamber, a recoater head, and a recoater head driving mechanism. The chamber covers a molding region. The recoater head comprises a material case and is configured to be moved so as to form a material powder layer. The material case includes a case outlet for discharging the material powder and a pair of inclined side surfaces arranged with the case outlet interposed therebetween. The inclined side surfaces are inclined toward the case outlet so that inclination angles between a horizontal plane and the inclined side surfaces are different from each other. The recoater head driving mechanism includes a motor and a control unit, and the control unit is configured to vibrate the recoater head to facilitate discharge of the material powder.