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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 27747. Отображено 196.
21-06-2023 дата публикации

СИСТЕМА И СПОСОБ ВИЗУАЛИЗАЦИИ РАСПРЕДЕЛЕНИЯ ЛАЗЕРНОЙ ЭНЕРГИИ, ОБЕСПЕЧИВАЕМОГО РАЗНЫМИ РИСУНКАМИ СКАНИРОВАНИЯ В БЛИЖНЕЙ ЗОНЕ

Номер: RU2798278C2

Группа изобретений относится к способу лазерной обработки (варианты), энергонезависимому машиночитаемому носителю данных и системе лазерной сварки. Осуществляют прием параметров лазерной обработки, связанных с источником лазерного излучения, и параметров перемещения лазера, связанных с перемещением лазерного пучка, обеспечиваемым сканирующей головкой для лазерной обработки. Параметры лазерной обработки и параметры перемещения лазера используют в ходе лазерной обработки, которую выполняют системой лазерной обработки, включающей в себя источник лазерного излучения и сканирующую головку для лазерной обработки. Задают распределение лазерной энергии во множестве точек в пределах перемещения лазерного пучка на основании по меньшей мере одного из полученных параметров лазерной обработки и параметров перемещения лазера. Осуществляют отображение визуального образа распределения лазерной энергии во множестве точек в пределах перемещения лазерного пучка. Визуальный образ распределения лазерной энергии ...

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10-09-2016 дата публикации

КОМБИНИРОВАННАЯ МАШИНА ДЛЯ ПРОБИВКИ И ЛАЗЕРНОЙ РЕЗКИ ПЛОСКОГО МЕТАЛЛИЧЕСКОГО ЛИСТА

Номер: RU2596540C2

Изобретение относится к комбинированной машине для пробивки и лазерной резки плоского металлического листа. Машина содержит неподвижное основание (1), неподвижную пробивную головку (7), лазерную режущую головку (10) и манипулятор (4) для перемещения металлического листа (6) в плоскости (ХУ) декартовой системы координат. Лазерная режущая головка (10) удерживается конструкцией (9) в виде циркуля с изменяемой апертурой, которая имеет возможность перемещения вдоль линейной направляющей (8). 4 з.п. ф-лы, 7 ил.

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25-01-2017 дата публикации

СПОСОБ СКАНИРОВАНИЯ ТРУБЫ, ПРЕДНАЗНАЧЕННОЙ ДЛЯ ОБРАБОТКИ НА СТАНКЕ ДЛЯ ЛАЗЕРНОЙ РЕЗКИ, С ИСПОЛЬЗОВАНИЕМ ДАТЧИКА ДЛЯ ИЗМЕРЕНИЯ ИЗЛУЧЕНИЯ, ОТРАЖЕННОГО ИЛИ ИСПУСКАЕМОГО ТРУБОЙ

Номер: RU2608868C2
Принадлежит: АДИДЖЕ С.п.А. (IT)

Изобретение относится к способу сканирования трубы, предназначенной для обработки на станке для лазерной резки. Способ включает этапы, на которых: а) излучают посредством режущей головки (50) станка для лазерной резки сфокусированный лазерный луч таким образом, чтобы не происходила резка или вытравливание материала трубы (Т); b) передвигают режущую головку (50) вдоль заданного направления (х) сканирования; и с) во время перемещения режущей головки (50) вдоль направления (х) сканирования детектируют посредством соответствующих датчиков (56) излучения, отраженное или излучаемое трубой (Т), и устанавливают последовательно точка за точкой, на основе сигнала, предоставляемого датчиками (56), присутствие или отсутствие материала трубы (Т). Изобретение позволяет измерять положение точки реза на поверхности трубы независимо от положения трубы на станке для лазерной резки и от формы трубы. 5 з.п. ф-лы, 8 ил.

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08-12-2021 дата публикации

Способ и устройство для концевого закругления щетинок

Номер: RU2761422C2

Группа изобретений относится к способу и устройству для концевого закругления щетинок секции зубной щетки, содержащей множество щетинок. Способ включает обеспечение сфокусированного лазерного луча, распространяющегося вдоль геометрического основного направления распространения и имеющего основную точку облучения, обеспечение относительного перемещения между концом каждой щетинки и основной точкой облучения сфокусированного лазерного луча таким образом, чтобы конец каждой щетинки перемещался через основную точку облучения на траектории, имеющей основной компонент, поперечный к продольной протяженности щетинки. Сфокусированный лазерный луч направлен так, что геометрическое основное направление распространения имеет основной компонент, поперечный к продольной протяженности соответствующей щетинки, конец которой расположен в основной точке облучения. Закругление конца обеспечивается сфокусированным лазерным лучом, нагревающим конец и заставляющим его частично плавиться и образовывать закругленный ...

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28-05-2018 дата публикации

Установка для лазерной обработки внутренней поверхности изделия

Номер: RU2655402C2

Изобретение относится к установке для лазерной обработки внутренней поверхности изделия. Оптическая система установки содержит размещенные в стойке и штанге зеркала, линзу, отклоняющий элемент и защитное стекло, установленные на выходной части штанги в головке. Головка состоит из корпуса со светоизлучающими элементами и составного сопла. Составное сопло содержит корпусную часть со светонаправляющими отверстиями, оси которых направлены в зону обработки, и коаксиально размещенную в ней втулку с внутренней поверхностью, образующую сопло для подачи потока в зону обработки. В корпусной части и втулке и размещены газораспределительные отверстия, выполненные в виде цилиндрических каналов, оси которых направлены под углом в сторону защитного стекла, в зону прохождения через него светового и лазерного излучения. Установка также содержит распределительную камеру, связанную с газораспределительными отверстиями и штуцером подачи технологического газа. Внутренняя поверхность корпусной части и наружная ...

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13-06-2018 дата публикации

Номер: RU2016144288A3
Автор:
Принадлежит:

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21-01-2021 дата публикации

ГОЛОВКА ДЛЯ ЛАЗЕРНОЙ РЕЗКИ С ДВУМЯ ПОДВИЖНЫМИ ЗЕРКАЛАМИ ДЛЯ РЕГУЛИРОВКИ ПУЧКА И/ИЛИ КОЛЕБАТЕЛЬНОГО ДВИЖЕНИЯ

Номер: RU2740931C2

Изобретение относится к головке для лазерной резки (варианты), установке для лазерной резки и способу лазерной резки. Подвижные зеркала используют для перемещения пучка, например, для регулировки пучка и/или создания разных схем колебаний для резки с получением прорезей разной ширины. Головка для лазерной резки содержит режущее сопло для направления лазерного пучка и газа на заготовку для резки. Подвижные зеркала задают колебательное движение пучка в пределах относительно небольшой зоны видимости, например, в пределах апертуры режущего сопла. Подвижные зеркала могут представлять собой гальванометрические зеркала, управляемые управляющим устройством, содержащим контроллер гальванометра. Управляющее устройство может использоваться для управления волоконным лазером, например, в соответствии с положением пучков относительно заготовки и/или со считанным состоянием в режущей головке, таким как тепловое состояние рядом с одним из зеркал. 4 н. и 19 з.п. ф-лы, 8 ил.

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15-09-2020 дата публикации

Способ изготовления оребренных панелей и устройства для его осуществления (варианты)

Номер: RU2732304C1

Изобретение относится к лазерной сварке оребренных панелей. Осуществляют установку и закрепление на опорной поверхности подготовленной панели, расположение на ней и фиксацию ребра с помощью фиксирующего прижимного устройства и сварку ребра и панели лазерным лучом. Сварку ребра и панели проводят одновременно двумя лазерными лучами с двух сторон, при этом направляют лучи в место стыка панели и ребра под одинаковыми углами, составляющими 5-60 градусов относительно плоскости панели, и создают общую сварочную ванну дугообразной формы. Фиксацию ребра осуществляют в процессе сварки синхронно с движением сварочных лазерных головок. Устройство для лазерной сварки оребренных панелей содержит фиксирующее прижимное устройство и сварочные лазерные головки, закрепленные на общем кронштейне с возможностью перемещения вдоль плоскости контакта ребра и панели. Фиксирующее прижимное устройство выполнено в виде ролика с пазом на торце. Две сварочные лазерные головки расположены напротив друг друга, симметрично ...

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15-01-2020 дата публикации

УСТРОЙСТВО И СПОСОБ РАЗЪЕДИНЕНИЯ БАНДЕРОЛИ

Номер: RU2711224C1

Устройство содержит деформирующее устройство, которое изгибает пачку таким образом, что участок бандероли приподнимается относительно пачки, и разделяющее устройство, которое по меньшей мере частично рассекает бандероль в области приподнятого относительно пачки участка при помощи лазерного луча. При этом устройство содержит по существу непроницаемый для электромагнитного излучения затемняющий элемент, который расположен между приподнятым относительно пачки участком бандероли и пачкой, причем затемняющий элемент выполнен по меньшей мере для частичного поглощения электромагнитного излучения. Изобретением является и система обработки ценных документов с использованием вышеописанного устройства. Группа изобретений обеспечивает повышение качества разъединения бандероли. 2 н. и 7 з.п. ф-лы, 7 ил.

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17-09-2021 дата публикации

Способ и устройство для концевого закругления щетинок

Номер: RU2020107877A
Принадлежит:

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27-01-2013 дата публикации

СВАРОЧНАЯ УСТАНОВКА И СПОСОБ СВАРКИ

Номер: RU2011129642A
Принадлежит:

... 1. Сварочная установка для приваривания первой заготовки и второй заготовки друг к другу посредством сварки встык для образования узла из заготовок и последующего приваривания узла из заготовок и третьей заготовки друг к другу посредством сварки встык, содержащая:стол, на котором должны быть зафиксированы первая, вторая и третья заготовки; имножество станций, на которых должен быть установлен стол,при этом множество станций включает:первую станцию позиционирования, на которой первая и вторая заготовки, размещенные на столе, устанавливаются посредством установки их встык друг с другом и затем фиксируются на столе,первую сварочную станцию, на которой первая и вторая заготовки, зафиксированные на столе, подвергаются сварке вместе в зоне их соприкасающихся поверхностей для образования узла из заготовок,станцию резки, на которой узел из заготовок подвергается резке для образования соприкасающейся поверхности с заданной формой, встык с которой должна быть установлена третья заготовка,вторую станцию ...

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27-01-2015 дата публикации

ЛАЗЕРНОЕ УСТРОЙСТВО МЕХАНИЧЕСКОЙ ОБРАБОТКИ И СПОСОБ ЛАЗЕРНОЙ ОБРАБОТКИ, СОДЕРЖАЩИЕ ОДИНОЧНУЮ ЛИНЗУ ДЛЯ ФОКУСИРОВКИ

Номер: RU2013132762A
Принадлежит:

... 1. Лазерное устройство (1) механической обработки, содержащее точку (В) выхода света, которая обеспечивается для излучения несфокусированного лазерного света (А), и одиночную линзу (8), расположенную после точки (В) выхода света в направлении излучения, которая фокусирует лазерный свет (А) и предназначена для направления сфокусированного лазерного света (А) на точку механической обработки обрабатываемой детали (7) и которая может перемещаться в упомянутом направлении излучения,отличающееся тем, чторасстояние (m, m) между линзой (8) и точкой (В) выхода света и расстояние (l, l) между линзой (8) и точкой механической обработки обрабатываемой детали (7) и расстояние между точкой (В) выхода света и упомянутой выше точкой механической обработки могут изменяться.2. Лазерное устройство (1) механической обработки по п.1, отличающееся тем, что линза (8) является асферической.3. Лазерное устройство (1) механической обработки по любому из пп.1 или п.2, отличающееся тем, что диапазон перемещения упомянутой ...

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02-10-2008 дата публикации

Apparat und Verfahren für eine X&Y-Senkrechtschnittrichtungsbearbeitung mit einer festgelegten Strahltrennung unter Verwendung einer 45° Strahlaufteilungsorientierung

Номер: DE112006003215T5

Ein X & Y-Senkrechtschnittapparat zum Ritzen eines Paares von parallelen Schnitten auf ein planares Werkstück, wobei die Werkstückebene mit einer X-Achse und einer Y-Achse angeordnet ist, wobei der Apparat enthält: eine Laservorrichtung, wobei die Laservorrichtung mindestens zwei Strahlen einschließlich eines ersten Strahls und eines zweiten Strahls erzeugt, wobei der erste Strahl und der zweite Strahl an einem ersten und einem zweiten Auftreffpunkt auf das Werkstück auftreffen, wobei der erste und der zweite Auftreffpunkt diagonal bezüglich der X- und der Y-Achse des Werkstücks angeordnet sind; und mindestens ein Betätigungsglied, um den ersten und den zweiten Auftreffpunkt zu bewegen, um ein Paar von parallelen Schnitten zu ritzen.

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04-08-1988 дата публикации

Deflecting device for a laser unit

Номер: DE0003701771A1
Принадлежит:

A deflecting device for a laser unit for deflecting the laser beam in the x and y directions has in the path of the laser beam a first mirror for the y deflection, which can be pivoted by a drive motor about an axis perpendicular to the impinging laser beam, and a second mirror for the x deflection, which can be pivoted by a drive motor about an axis perpendicular to the impinging laser beam and to the pivoting axis of the first mirror. A third mirror, which is at an unalterable angle with respect to the direction of the rays of the laser beam(s) coming from the first mirror (12), is mounted unpivotably and is interchangeable with a second mirror (16). The second and the third mirrors (16, 20) are arranged on a slide which can be moved between two positions in such a way that, in the one position of the slide (22), the second mirror (16) lies in the path of the rays of the laser beam(s) and, in the other position of the slide (22), the third mirror (20) lies in the path of the rays of the ...

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10-09-2009 дата публикации

Laserbohrsystem

Номер: DE0060328636D1
Принадлежит: OSMOTICA CORP, OSMOTICA CORP.

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09-05-2018 дата публикации

Vorrichtung zum Ausbilden einer geschlossenen, gekrümmten Schnittfläche

Номер: DE0010334108B4
Принадлежит: ZEISS CARL MEDITEC AG, Carl Zeiss Meditec AG

Vorrichtung zum Ausbilden einer ein Teilvolumen (T) innerhalb eines transparenten Materials (5) umschließenden Schnittfläche (9), mit einer Laserstrahlungsquelle (S), die Laserstrahlung (3) in das Material (5) fokussiert und dort optische Durchbrüche (8) bewirkt, wobei die Vorrichtung eine Scaneinrichtung (6, 10), die den Fokuspunkt (7) dreidimensional verstellt, und eine Steuereinrichtung aufweist, die die Scaneinrichtung (6, 10) ansteuert, um die Schnittfläche (9) durch Aneinanderreihen der optischen Durchbrüche (8) im Material (5) zu bilden, dadurch gekennzeichnet, dass die Scaneinrichtung zur Verstellung der Lage des Fokuspunktes (7) längs der optischen Achse (A) ein verstellbares Teleskop (6) aufweist und dass die Steuereinrichtung den Fokuspunkt (7) entlang einer Raumspirale (22) verstellt, die in der Schnittfläche (9) liegt und entlang einer im Wesentlichen rechtwinklig zur optischen Achse (A) liegenden Hauptachse (H) verläuft.

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21-03-1974 дата публикации

VERFAHREN ZUM GRAVIEREN VON DRUCKFORMEN MITTELS ENERGIESTRAHLEN

Номер: DE0002241850A1
Принадлежит:

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03-05-2012 дата публикации

Laserbearbeitungsmaschine und Verfahren zum Umrüsten derselben

Номер: DE102010027927B9

Die Erfindung betrifft eine Laserbearbeitungsmaschine (1), insbesondere eine Laser-Flachbettmaschine, zur wahlweisen Bearbeitung von plattenartigen oder von rohrförmigen Werkstücken, umfassend: eine Verschiebeeinrichtung (8), an welcher ein Werkstücktisch (7) zur Auflage eines plattenartigen Werkstücks (22) festlegbar ist, um den Werkstücktisch (7) in einen Bearbeitungsbereich (2) der Laserbearbeitungsmaschine (1) und aus diesem heraus zu bewegen, sowie eine Handhabungseinrichtung (3, 4, 5, 6) zur Handhabung eines rohrförmigen Werkstücks (22) bei der Bearbeitung des rohrförmigen Werkstücks (22) in dem Bearbeitungsbereich, wobei die Handhabungseinrichtung mindestens eine Stützeinrichtung (4, 5, 6) zur Unterstützung des rohrförmigen Werkstücks (22) bei der Bearbeitung aufweist. Die Stützeinrichtung (5) ist in Längsrichtung (X) des rohrförmigen Werkstücks (22) mindestens über 20%, bevorzugt mindestens über den halben Bearbeitungsbereich (2) gesteuert bewegbar und ist bevorzugt an der Verschiebeeinrichtung ...

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10-06-1999 дата публикации

Method of producing cutouts in a workpiece, e.g. in a vehicle body part

Номер: DE0019834534A1
Автор: NACHTRÄGLICH
Принадлежит:

A clamping unit (20) with a guided cutting element (12) is attached to the part to be cut out of a workpiece (10). The clamping unit incorporates a clamping element (18) with opposing clamping surfaces for the workpiece material, and is provided with the cutting element. An Independent claim is also included for a device for carrying out the method.

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10-12-2015 дата публикации

Anordnung zur Abtastung einer Objektfläche mit mehreren Laserstrahlen und Verfahren zum Betrieb der Anordnung

Номер: DE102014012733B3

Die vorliegende Erfindung betrifft eine Anordnung zur Abtastung einer Objektfläche mit Laserstrahlung, die wenigstens einen Strahlteiler zur Aufteilung eines eingekoppelten Laserstrahls in mehrere Teilstrahlen, eine Scaneinrichtung zur Abtastung eines Bereiches der Objektfläche mit den Teilstrahlen sowie eine zwischen dem Strahlteiler und der Scaneinrichtung angeordneten Abbildungsoptik aufweist, die zur Abbildung des Strahlteilers in die Scaneinrichtung ausgebildet ist und einen Zwischenfokus erzeugt, in dem die Teilstrahlen räumlich getrennt voneinander sind. Im Bereich des Zwischenfokus ist ein Strahlversatzmodul angeordnet, das für jeden oder wenigstens einige der Teilstrahlen getrennt wenigstens ein drehbar gelagertes, optisch transparentes planparalleles Element mit wenigstens einem Aktor aufweist, durch den das Element gedreht werden kann. Das planparallele Element ist dabei so im Strahlengang des Teilstrahls angeordnet, dass der Teilstrahl beim Durchgang durch das Element einen ...

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04-11-1982 дата публикации

METHOD AND DEVICE FOR FIXING CHIPS BY ENERGY BEAMS

Номер: DE0002963695D1
Автор: TAN SWIE-IN, TAN, SWIE-IN

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18-06-2020 дата публикации

Laserbearbeitungsrobotersystem und Steuerverfahren für Laserbearbeitungsrobotersystem

Номер: DE102017129258B4
Принадлежит: FANUC CORP, FANUC CORPORATION

Laserbearbeitungsrobotersystem (100), umfassend:eine Laserbestrahlungsvorrichtung (12), die dazu konfiguriert ist, ein Objekt (W) mit einem Laserstrahl (L) zu bestrahlen und einen Bestrahlungspunktverschiebungsvorgang zum Verschieben eines Bestrahlungspunkts mit dem Laserstrahl auf einer Oberfläche des Objekts (W) auszuführen;einen Roboter (11), der dazu konfiguriert ist, die Laserbestrahlungsvorrichtung (12) zu bewegen;eine Laserbestrahlungsvorrichtungssteuerung (14), die dazu konfiguriert ist, den Bestrahlungspunktverschiebungsvorgang der Laserbestrahlungsvorrichtung (12) zu steuern; undeine Robotersteuerung (13), die dazu konfiguriert ist, den Roboter (11) zu steuern,wobei die Robotersteuerung (13) zu Folgendem konfiguriert ist:Bestimmen von mehreren ersten interpolierten Positionen (Pn) durch Interpolieren von mehreren Zielpositionen, die zum Generieren einer Bewegungsbahn der Laserbestrahlungsvorrichtung (12) verwendet werden, basierend auf einer ersten Interpolationsperiode (T1), ...

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22-11-1984 дата публикации

EINRICHTUNG ZUM AUSRICHTEN EINES LASERSTRAHLES

Номер: DE0003318686A1
Принадлежит:

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19-10-2000 дата публикации

Vorrichtung und Verfahren zum Abtragen von Schichten auf einem Werkstück

Номер: DE0019933703A1
Принадлежит:

The invention relates to a device and a method for removing thin layers on a support material, especially for removing barrier layers of a thin-layer solar cell. The aim of the invention is to provide an economical means of removing strips of up to a few millimetres in width without damaging the substrate of the thin-layer solar cell underlying the layer to be removed. To this end, a laser treatment device with a laser resonator and an optical system is provided. The optical system projects the treatment beam produced by the layer resonator over an area of 1 mm<2> to 1 cm<2> on the surface to be treated with an essentially homogenous distribution of power. Thin layers can be effectively removed from the substrate at pulse width of less than 100 ns and with a pulse energy density of 0.1 J/cm<2> to 10 J/cm<2>.

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24-09-1970 дата публикации

Mikrobildaufzeichnungsvorrichtung

Номер: DE0001597332B1
Автор:
Принадлежит: NCR CO

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29-05-2002 дата публикации

Vorrichtung zum Sintern, Abtragen und/oder Beschriften mittels elektromagnetischer gebündelter Strahlung sowie Verfahren zum Betrieb der Vorrichtung

Номер: DE0010053742A1
Принадлежит:

Vorrichtung zum Sintern, Abtragen und/oder Beschriften mittels elektromagnetischer gebündelter Strahlung, insbesondere Laser-Sintermaschine und/oder Laser-Oberflächenbearbeitungsmaschine, insbesondere zur Durchführung stereolithographischer Verfahren, mit einem in einem Maschinengehäuse 2 untergebrachten Bauraum 3, in welchem ein Scanner 4, in den der Strahl 5 eines Sinter-Lasers 6 eingekoppelt wird, eine höhenverfahrbare Werkstückplattform 7 sowie eine Materialzuführungseinrichtung mit einem zur Zuführung von pulverartigem, pastösem oder flüssigem Sinter-Material aus einem Vorratsbehälter in den Prozeßbereich über der Werkstückplattform dienenden Beschichter vorgesehen sind, wobei der Scanner 4 an einem über der Werkstückplattform 7 nach Art eines Kreuzschlittens motorisch verfahrbaren Scanner-Träger 8 angeordnet ist, wobei motorische Antriebselemente des Scanner-Trägers 8 an einem Steuerungsrechner 9 der Vorrichtung 1 angeschlossen sind und von diesem während des Bauprozesses zur Bewegung ...

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16-09-2010 дата публикации

Verfahren zum Verbinden zweier Teile, insbesondere eines Fahrzeugsitzes, lasergeschweißter Fahrzeugsitz und Vorrichtung zum Laserschweißen eines Fahrzeugsitzes

Номер: DE102007051761B4
Принадлежит: KEIPER GMBH & CO KG, KEIPER GMBH & CO. KG

Verfahren zum Verbinden zweier Teile (9, 15), insbesondere eines Fahrzeugsitzes, von denen ein erstes Teil (9) eine als Durchgangsöffnung ausgebildete Aufnahme (17) aufweist, und das zweite Teil (15) zumindest mit einem Teil durch die Aufnahme (17) geführt ist, der zweite Teil (15) an einem Ende unter Einführung eines Dorns (W) aufgeweitet wird, und anschließend mittels eines Laserschweißverfahrens die beiden Teile (9, 15) miteinander verschweißt werden, dadurch gekennzeichnet, dass der zweite Teil (15) endseitig mit mindestens einem Schlitz (15a) versehen ist, der Schlitz (15a) im zweiten Teil (15) über die Aufnahme (17) des ersten Teils (9) hinaus in den ersten Teil (9) hineinragt und der zweite Teil (15) im überstehenden, geschlitzten Bereich durch den Dorn (W) aufgeweitet wird.

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02-04-2014 дата публикации

A boroscope and a method of laser processing a component using the borescope

Номер: GB0002506516A
Принадлежит:

A boroscope 60 has a working head. An optical fibre 74 extends through the borescope 60 to the working head 68. Another optical fibre 76 extends through the boroscope (60) to the end 72 of the working head 68. A laser optical fibre 78 extends through the borescope 60. A lens 80 may be is arranged in the working head 68 and a mirror 82 is gimballed 84 to the end 72 of the working head 68. The laser optical fibre 78 directs laser light optionally onto the lens 80 and then onto the mirror 82. LEDs 86, 88 are arranged on the working head 68. An actuator 90,92 adjusts the position of the mirror 82.

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15-05-2002 дата публикации

System & method for controlling a laser

Номер: GB0000207615D0
Автор:
Принадлежит:

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07-07-2010 дата публикации

Laser scan speed calibration

Номер: GB0201008334D0
Автор:
Принадлежит:

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24-12-1975 дата публикации

LASER DRILLING APPARATUS

Номер: GB0001418972A
Автор:
Принадлежит:

... 1418972 Drilling by lasers PHOTON SOURCES Inc 22 May 1973 [5 June 1972] 24472/73 Heading B3V [Also in Division G2] Laser drilling apparatus is shown as comprising a frame 12 with a fixture 14 on which workpiece 16 can be securely attached. An optical drilling head (see Divisions G2-G3) is positioned above workpiece 16 and is rotatably drivable about axis 19 by means of motor 20, sprockets 22, 24 and chain 26. A movable mirror platform 28 is mounted above head 18 and carries mirrors 30, 32 which direct the laser beam to the head 18. An air input 34 and exhaust 36 are provided on opposite sides of head 18 for cooling and removal of contaminants. The drilling head 18 is such that when it is rotated, the laser beam traces out a circle of variable diameter through the workpiece and cores out a hole. If the motor 20 is stepped and the laser is correspondingly pulsed, series of holes can be drilled around the circumference of a circle. The head 18 is programmable for automatic operation.

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26-10-1983 дата публикации

PRODUCING ARTWORK

Номер: GB0008325705D0
Автор:
Принадлежит:

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20-06-1990 дата публикации

CIGARETTE MANUFACTURE

Номер: GB0009009385D0
Автор:
Принадлежит:

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04-08-1976 дата публикации

APPARATUS FOR GUIDING A LASER BEAM

Номер: GB0001444773A
Автор:
Принадлежит:

... 1444773 Mounting mirrors U SHARON 8 Oct 1973 [17 Oct 1972] 46829/73 Heading G2J [Also in Division A5] An apparatus for directing a laser beam from a laser (45) Fig. 2 (not shown) to a manipulator 70 for surgery comprises mirrors 126, 136, 146, 156, 166, 176, 186 mounted as illustrated, in an articulated arm 50. A mirror (116), see Fig. 4 (not shown) is adjustably fixed to direct the beam up a vertical shaft (48) to the mirror 126. The mirrors 126 ... 186 are mounted for rotation respectively about the axes of shafts (48), 132, 134, 152, 154, 172, 182. It is stated that the mirrors may be replaced by prisms.

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14-04-1993 дата публикации

Cigarette manufacture

Номер: GB2260255A
Принадлежит:

Various arrangements are disclosed for perforation by laser of cigarettes carried on a fluted drum without rolling. In one arrangement (Figures 1-3) rings of reflectors (8, 14) movable with the drum (12) intercept and direct a continuous laser beam (18). In another arrangement (Figure 4, 5) cigarettes (28) are perforated while being conveyed past a fixed focus pulsed beam (32) which has a selected profile and is redirected between passing cigarettes to perforate cigarettes at other positions. Other arrangements include using a rotating disc (Figures 6-8) or rotary stepped reflector (Figures 9, 13, 14) to share a beam between different or produce two rows of perforations on a cigarette, using a continuous reflective surface (Figures 10, 11) to reflect a rotating beam at passing cigarettes, and causing a beam to partially track a moving cigarette (Figure 12). ...

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29-01-1986 дата публикации

LASER MACHINING APPARATUS

Номер: GB0002113592B
Принадлежит: PRECI SPARK LTD, * PRECI-SPARK LIMITED

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10-08-1983 дата публикации

Laser machining apparatus

Номер: GB0002113592A
Принадлежит:

A laser machining apparatus (1) for burning holes in a workpiece has an objective lens (20) which is movable by means of motor-driven carriages 28, 30 in a plane generally perpendicular to the lens axis to enable the laser beam to be moved and focussed at different surface locations on the workpiece (14). This enables clusters of holes to be machined in the workpiece surface without the necessity of moving the workpiece except, perhaps, for horizontal movement which is normally a rotational indexing of the workpiece, the laser beam being horizontally directed. Detection of burn- through of the beam is effected by an optoelectronic detector circuit which monitors the light intensity transmitted from the workpiece surface during burning of a hole by the laser, the light being transmitted back along the laser beam path through a mirror and filter system (18, 38, 44) to the detector circuit. Once burn-through is effected the fall in light intensity is detected by the circuit which triggers ...

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03-01-2007 дата публикации

Aom modulation techniques for improving laser system performance

Номер: GB0000623494D0
Автор:
Принадлежит:

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28-03-1984 дата публикации

System and method for producing artwork for printed circuit boards

Номер: GB0002126835A
Принадлежит:

Systems and method utilizing a laser beam to produce artwork for printed circuit boards. The laser beam is modulated in accordance with the artwork and scanned across an output medium to form an image of the artwork. To ensure that the output medium is accurately in the focal plane of the scanning system, e.g. for different thicknesses of photographic paper, the medium is mounted on a planar platen (47) which is in turn mounted on a carriage (43), the platen being vertically movable by means e.g. of rams (109, 111), until stopped by adjustable stops (118, 119, 121, 122), adjusted in dependence on e.g. the paper thickness. Heat insensitive Invar supports are incorporated. ...

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04-04-1984 дата публикации

System and method for producing artwork for printed circuit boards

Номер: GB0002127253A
Принадлежит:

Systems and method utilizing a laser beam to produce artwork for printed circuit boards. The laser beam is modulated in accordance with the artwork and scanned across an output medium to form an image of the artwork. The scanning means includes a reflector rotating at a constant rate. The resultant non-linearity of the linear velocity of the beam as it scans across the medium would cause corresponding non-uniform exposure of the medium. The intensity of the beam is thus varied to compensate.

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09-01-2019 дата публикации

Laser scan speed calibration

Номер: GB0002480525B
Принадлежит: SIEMENS AG, Siemens Aktiengesellschaft

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07-05-2008 дата публикации

Real time target topography during laser processing

Номер: GB0000806007D0
Автор:
Принадлежит:

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16-04-1986 дата публикации

WORKPIECE PROCESSING APPARATUS

Номер: GB0008606273D0
Автор:
Принадлежит:

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28-01-1970 дата публикации

Optical Filter

Номер: GB0001179800A
Принадлежит:

... 1,179,800. Read-only stores. RCA CORP. 11 June, 1968 [11 Oct., 1967], No. 27649/68. Heading G4A. [Also in Division G2] In a system for storing electrical signals upon a recording medium, comprising means 400 for applying a modulated energy source having an intensity which varies from point to point over its cross-sectional area in accordance with a predetermined Gaussian function, means 420 for enlarging the cross-sectional area of said modulated energy source, means 430 for collimating a selected portion of said enlarged source, imaging means 440 disposed to receive said selected portion of said collimated source and focus same into a high-energy density spot, and means 450 for scanning the recording medium 460 with the focused spot, an optical filter 470 is disposed intermediate the collimating means 430 and the imaging means 440, the optical filter having a transmission characteristic which varies from point to point over its cross-sectional area as a function of the radial distance ...

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28-04-1971 дата публикации

Номер: GB0001229876A
Автор:
Принадлежит:

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29-01-2020 дата публикации

NO DETAILS

Номер: GB0201918422D0
Автор:
Принадлежит:

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15-02-2007 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT0000352394T
Принадлежит:

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10-09-1990 дата публикации

BEARBEITUNGSMASCHINE, WIE BRENNSCHNEIDEMASCHINE OD. DGL.

Номер: AT0000391289B
Автор:
Принадлежит:

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10-02-1984 дата публикации

PROCEDURE FOR THE COMPENSATION OF POSITION DEVIATIONS OF A DIAL OR A SIGN RELATIVE TO INSCRIPTION EQUIPMENT

Номер: AT0000373693B
Автор:
Принадлежит:

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15-04-2010 дата публикации

LASER MILLING PROCEDURE AND SYSTEM

Номер: AT0000464149T
Принадлежит:

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15-10-2005 дата публикации

VERFAHREN UND VORRICHTUNG ZUM SCHWEISSEN, LÖTEN ODER SCHNEIDEN

Номер: ATA602002A
Автор:
Принадлежит:

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15-03-2012 дата публикации

LASER PROCESSING MACHINE WITH ONE RELATIVE TO THE FRAMEWORK OF THE MACHINE MOVABLE ONE LASER GENERATOR

Номер: AT0000549119T
Принадлежит:

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15-10-2005 дата публикации

PROCEDURE AND DEVICE FOR WELDING, SOLDERING OR CUTTING

Номер: AT0000602002A
Автор:
Принадлежит:

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15-05-2011 дата публикации

CONTROL FOR A LASER WITH PRÄDIKTIVEN MODELS OF THE MOVEMENT SYSTEM OF THE LASER BEAM

Номер: AT0000508398T
Принадлежит:

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15-07-1993 дата публикации

A SYSTEM FOR MARKING ARTICLES BY LASER BEAMS.

Номер: AT0000091246T
Принадлежит:

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10-05-1978 дата публикации

PROCEDURE FOR MARKING AND/OR MARKING ZIFFERBLATTERN OR SIGNS OF TURNING OUT

Номер: AT0000343216B
Автор:
Принадлежит:

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15-03-2005 дата публикации

FAR AND DEVICE FOR SPLITTING FLATTENING WORKPIECES FROM SPRÖDBRÜCHIGEM MATERIAL

Номер: AT0000289891T
Принадлежит:

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10-09-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00034836020T
Принадлежит:

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08-07-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00035081028T
Принадлежит:

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09-04-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00030926966T
Принадлежит:

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16-02-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00038484880T
Принадлежит:

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11-02-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00039007302T
Принадлежит:

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12-07-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00038792328T
Принадлежит:

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20-10-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00033290847T
Принадлежит:

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08-02-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00034315080T
Принадлежит:

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09-06-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00030069736T
Принадлежит:

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12-08-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00033519182T
Принадлежит:

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23-09-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00038949012T
Принадлежит:

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10-04-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00031022758T
Принадлежит:

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23-11-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00038987080T
Принадлежит:

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04-01-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00039056111T
Принадлежит:

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25-12-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00031825996T
Принадлежит:

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03-10-2000 дата публикации

LASER DRILLING SYSTEM AND - PROCEDURES

Номер: AT00039128247T
Принадлежит:

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26-11-2015 дата публикации

Heat treatment of a laser coating

Номер: AU2012220431B2
Принадлежит:

The invention relates to a method for heating an organic coating applied onto substrates (1), particularly mirror substrates. Laser radiation is applied onto the organic coating while the substrates continuously move. Said method in particular makes it possible to dry or cure paints or inks with little heat being transferred to the substrate.

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03-03-2004 дата публикации

METHOD, DEVICE AND INSTALLATION FOR CUTTING TEXTILES BY MEANS OF A LASER BEAM

Номер: AU2003223872A1
Принадлежит:

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20-08-2020 дата публикации

Machine for laser working of tubes and profiled sections with a scanning system for scanning the tube or profiled section to be worked

Номер: AU2015365363B2
Принадлежит: Phillips Ormonde Fitzpatrick

The machine comprises: a working head (12) with a focussing device (18) arranged to focus a laser beam on the surface of the tube or profiled section (T) to be worked, a carriage (26) on which the working head (12) is mounted and a scanning system (20) arranged to scan at least a portion of the outline of the cross-section of the tube or profiled section (T). The carriage (26) is able to translate with respect to the tube or profiled section (T) both in a longitudinal direction (x) coinciding with the longitudinal axis of the tube or profiled section (T) and in a transverse direction (y). The scanning system (20) comprises at least one laser scanning module (20) comprising a laser emitter (22) arranged to emit a light blade (L) with which to illuminate a portion of the tube or profiled section (T) and a camera (24) arranged to acquire an image of the portion of tube or profiled section (T) illuminated by the light blade (L). The working head (12) and the at least one laser scanning module ...

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21-12-2017 дата публикации

Method for manufacturing a metallic component by additive laser manufacturing

Номер: AU2013263783B2
Принадлежит: Watermark Intellectual Property Pty Ltd

... 20 B12/180-0 The invention refers to a method for manufacturing a three-dimensional metallic article/component (11) entirely or partly, comprising the steps of a) successively building up said article /component (11) from a metallic base material (12) by means of an additive manufacturing process by scanning with an 10 energy beam (14), thereby b) establishing a controlled grain orientation in primary and in secondary direction of the article /component (11), c) wherein the secondary grain orientation is realized by applying a specific scanning pattern of the energy beam (14), which is aligned to the cross section 15 profile of said article /component (14), or with characteristic load conditions of the article/component (11). FIG. 4a-4c 2/7 B12/'180-0 '13 A o ,0 - 6 - - * -i z ...

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08-10-1991 дата публикации

METHOD OF WELDING

Номер: CA0001290404C

Virgin metal and metal alloy components are welded with and without filler material using a laser without cleaning the surfaces to be joined of mill scale and/or surface oxides, paints grease and other forms of contamination, and without edge preparation. The uncleaned, unprepared surfaces are placed in contact with each other, and a 100% through the thickness laser keyhole weld without filler metal is made in one pass, full penetration is achieved by two laser keyhole welds without filler metal (one made from each side), or resistively heated filler wire is fed into the metal pool of a laser conduction weld in one oe more passes along each side of the confronting surfaces to be joined. Quality welds are made despite gaps of varying size up to about 0.125 inches between the parts to be joined.

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19-08-2004 дата публикации

PERIPHERAL WHICH CAN BE USED TO PRINT AND CUT SHEETS OF PAPER USING A LOW-POWER LASER SOURCE

Номер: CA0002482154A1
Автор: ACHER, OLIVIER
Принадлежит:

L'invention concerne un dispositif périphérique comprenant des moyens d'impression d'une feuille de papier, des moyens de découpe de ladite feuille de papier et des moyens de réception d'instructions. Les moyens d'impression comportent une première tête d'impression (4) par éjection d'encre pour imprimer du texte ou des dessins sur la feuille de papier (3) en fonction des instructions reçues, une deuxième tête d'impression (1) par éjection d'encre pour éjecter en fonction des instructions reçues une encre, dite encre absorbante,capable de pénétrer en profondeur dans la feuille de papier, l'encre absorbante étant déposée aux endroits à découper, et les moyens de découpe comportent un laser (2) de faible puissance émettant un faisceau laser à une longueur d'onde absorbée par les endroits encrés à l'encre absorbante (7), la puissance du laser étant suffisante pour obtenir la découpe de la feuille de papier aux endroits encrés et/ou une ablation partielle du papier. L'invention concerne également ...

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03-05-1988 дата публикации

LASER BEAM SPOT WELDING INSTALLATION AND METHOD

Номер: CA0001236171A1
Принадлежит:

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26-12-2019 дата публикации

MANUFACTURING METHOD OF SPATIALLY MODULATED WAVEPLATES

Номер: CA3104586A1
Принадлежит:

The invention relates to volume modification of transparent materials by means of ultrashort laser pulses. A method for manufacturing of highly transparent spatially variant waveplates includes focussing Gaussian laser beam with pulse duration 500 fs to 2000 fs inside of material transparent to laser wavelength building self-organizing structures of nanoplates. The workpiece is moved in three coordinates relatively to beam focus along desired line. A combination of focus area, pulse repetition rate, energy and velocity of movement is selected to locate said structures inside of the workpiece for acting as birefringent optical elements with specific retardance. Energy of pulses exceeds the threshold of building nanoplates in part of the focal area limited by -s/2 and s/2 where s is standard deviation from maximum of Gaussian function. Energy of pulses creating nanoplates is accumulated in said area from the sequence of 1000 to 2000 pulses in total not exceeding 0,2-0,3 µJ.

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13-03-2021 дата публикации

ADDITIVE MANUFACTURED FERROUS COMPONENTS

Номер: CA3092782A1
Принадлежит:

A method of forming a ferrous metal case-hardened layer using additive manufacturing. The method includes delivering, by a material delivery device, a filler material to a surface of a substrate. The substrate includes a first ferrous metal. The filler material includes a second ferrous metal and a carbon-based material. The method also includes directing, by an energy delivery device, an energy toward a volume of the filler material to join at least some of the filler material to the substrate to form a component.

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05-01-2012 дата публикации

High Throughput Solar Cell Ablation System

Номер: US20120003788A1
Принадлежит: Individual

A solar cell is formed using a solar cell ablation system. The ablation system includes a single laser source and several laser scanners. The laser scanners include a master laser scanner, with the rest of the laser scanners being slaved to the master laser scanner. A laser beam from the laser source is split into several laser beams, with the laser beams being scanned onto corresponding wafers using the laser scanners in accordance with one or more patterns. The laser beams may be scanned on the wafers using the same or different power levels of the laser source.

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11-10-2017 дата публикации

Устройство одновременного сканирования двумя лазерными пучками

Номер: RU0000174390U1

Устройство одновременного сканирования двумя лазерными пучками включает в себя два механических сканирующих устройства, которые установлены рядом так, чтобы области сканирования каждого полностью перекрывали ростовую зону установки. Оба сканирующих устройства оснащены вариофокальными объективами, фокусирующими лазерные пучки на всей плоскости ростовой зоны. Технический результат заключается в расширении технологических возможностей обработки и изготовления деталей при обеспечении их высокого качества и точности обработки за счет обеспечения полного перекрытия рабочей зоны. 3 з.п. ф-лы. Ц 1 174390 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (2 за зао 0 (51) МПК В23К 26/08 (2014.01) СО2В 26/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016144179, 10.11.2016 (24) Дата начала отсчета срока действия патента: 10.11.2016 Дата регистрации: 11.10.2017 Приоритет(ы): (22) Дата подачи заявки: 10.11.2016 (45) Опубликовано: 11.10.2017 Бюл. № 29 Адрес для переписки: 197046, Санкт-Петербург, пр-кт Каменноостровский, 1-3, пом. 30, ООО "Юридическая фирма Городисский и Партнеры" (72) Автор(ы): Орлов Андрей Евгеньевич (КО), Смоленцев Сергей Сергеевич (КО), Тимофеев Владимир Андреевич (КО), Ксенофонтов Алексей Олегович (КП) (73) Патентообладатель(и): Российская Федерация в лице Министерства промышленности и торговли Российской Федерации (Минпромторг России) (КП) (56) Список документов, цитированных в отчете о поиске: У\О 2016128287 А1, 18.08.2016. ГР 2001075039 А, 23.03.2001. 0$ 20040129685 АТ, 08.07.2004. \УО 2013061587 А1, 02.05.2013. (54) УСТРОЙСТВО ОДНОВРЕМЕННОГО СКАНИРОВАНИЯ ДВУМЯ ЛАЗЕРНЫМИ ПУЧКАМИ (57) Реферат: Устройство одновременного сканирования двумя лазерными пучками включает в себя два механических сканирующих устройства, которые установлены рядом так, чтобы области сканирования каждого полностью перекрывали ростовую зону установки. Оба сканирующих устройства оснащены вариофокальными объективами, фокусирующими ...

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19-01-2012 дата публикации

Method for Cutting C-Mn Steel with a Fiber Laser

Номер: US20120012570A1

The invention relates to a laser cutting method for cutting a C—Mn steel workpiece, characterized in that laser beam generation means comprising at least one silica fiber with an ytterbium-doped core is used to generate the laser beam. Preferably, the ytterbium-based fiber has a wavelength between 1.07 and 1.1 μ m, preferably 1.07 μ m, the quality factor of the laser beam is between 0.33 and 8 mm.mrad, and the laser beam has a power of between 0.1 and 25 kW. The assistance gas for the laser beam is chosen from nitrogen, helium, argon, oxygen, CO 2 and mixtures thereof, and, optionally, it further contains one or more additional compounds chosen from H 2 and CH 4 .

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19-01-2012 дата публикации

Automated beam marker

Номер: US20120013661A1
Автор: James M. Smelser
Принадлежит: Individual

A beam marking system is disclosed for marking on beams with a marking device. The beam marking system includes a beam marking device configured to mark on the surface of a beam. A movable arm is coupled to the marking device. The movable arm has at least three movable components that collectively move the beam marking device along or about at least three axes. A controller is in electronic communication with the movable arm and the marking device. The controller controlling the movement of the at least three movable components of the movable arm and controlling the operation of the marking device. In some instances, the beam marking system can automatically mark beams, such as metal beams used in heavy construction projects in a rapid and accurate manner.

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26-01-2012 дата публикации

Optical device and laser beam machining apparatus having optical device

Номер: US20120018412A1
Автор: Yusaku Ito
Принадлежит: Disco Corp

An optical device includes: a beam splitter by which a laser beam oscillated from an oscillator is branched into a first branch beam going ahead through transmission and a second branch beam going ahead through reflection; a first mirror by which the first branch beam going out of the beam splitter is reflected to go again toward the beam splitter; a second mirror by which the second branch beam going out of the beam splitter is reflected to go again toward the beam splitter; and a circular disk-like rotating unit for integrally rotating the first mirror and a second mirror, with a laser beam branch point in the beam splitter as a center of rotation.

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02-02-2012 дата публикации

Methods of temporally varying the laser intensity during scribing a photovoltaic device

Номер: US20120028404A1
Автор: Jonathan Mack Frey
Принадлежит: Primestar Solar Inc

Methods for laser scribing a film stack including a plurality of thin film layers on a substrate are provided. A pulse of a laser beam is applied to the film stack, where the laser beam has a power that varies as a function of time during the pulse according to a predetermined power cycle. For example, the pulse can have a pulse lasting about 0.1 nanoseconds to about 500 nanoseconds. This pulse of the laser beam can be repeated across the film stack to form a scribe line through at least one of the thin film layers on the substrate. Such methods are particularly useful in laser scribing a cadmium telluride thin-film based photovoltaic device.

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23-02-2012 дата публикации

Laser processing method and laser processing apparatus

Номер: US20120043474A1
Принадлежит: Qmc Co Ltd

The present disclosure relates to laser processing and a laser processing apparatus for processing materials using laser. Processing performed after loading a wafer on a work stage and a laser processing apparatus for implementing such processing, among others, are disclosed. The laser processing includes loading a wafer on a work stage; determining the number of chips formed on the wafer loaded on the work stage, performing chip defect inspection and aligning the wafer while moving the work stage; measuring a height of a surface of the wafer loaded on the work stage using a displacement sensor; monitoring output power of a processing laser using a power meter; and shifting the work stage while irradiating a laser beam on the wafer to process the wafer.

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22-03-2012 дата публикации

Defect correcting apparatus and defect correcting method

Номер: US20120071056A1
Принадлежит: Sony Corp

The present disclosure provides a defect correcting apparatus including a defect detecting device configured to detect a defect within a repetitive pattern in a multilayer substrate a defect correcting device configured to correct the defect in the multilayer substrate by a specified defect correcting method, and a control device configured to, when the defect detected by the defect detecting device is detected overlapping a region in which occurrence of an interlayer short-circuit defect is assumed, generate an object corresponding to the defect correcting method for the interlayer short-circuit defect, and controlling the defect correcting device for correcting the defect using the generated object.

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29-03-2012 дата публикации

Tubular beam with single center leg

Номер: US20120074720A1
Принадлежит: Shape Corp

A reinforcement beam for a vehicle bumper system comprises a single sheet deformed to define first and second tubes sharing a common single center wall. A channel rib is formed on each tubes and a crevice rib over the center leg forms a third rib. Edges of the sheet are deformed to a radius so that their surface consistently engages an associated radiused corner formed on ends of the center leg, which facilitates consistent abutting line engagement of material surfaces, and thus facilitates consistent welding. In a preferred beam, front wall sections of each tube are coplanar and form a face of the beam, with each channel rib and crevice rib providing added stiffness to the beam, and yet nothing extends forward of the coplanar front wall sections. Related apparatus and methods are also disclosed.

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05-04-2012 дата публикации

Beam guiding bellows for laser cutting machine, and method of manufacturing beam guiding bellows for laser cutting machine

Номер: US20120081808A1
Принадлежит: Individual

Disclosed are a novel beam guiding bellows for laser cutting machine, and a method of manufacturing the beam guiding bellows for laser cutting machine, which no longer need a process of placing any special plates such as reflective plates, therefore enabling manufacturing in a shorter time at low costs. The beam guiding bellows is configured by a plurality of stacked sheet bodies integrally folded so as to alternately form hill sections and valley sections, and is thereby made freely expandable and retractable in the overall length as angles of the hill sections and valley sections vary, wherein the inner sheet body disposed innermostly is composed of a material capable of protecting the inner sheet body by absorbing or reflecting the laser light having been scattered or reversed, or having, formed on the inner surface thereof, a protective layer composed of a material capable of protecting the inner sheet body by absorbing or reflecting the laser light, and the inner sheet body has protruding flaps which are formed, automatically in the process of folding it together with the other sheet bodies to thereby form the hill sections and the valley sections alternately, so as to project further inwardly from the apexes of the valley sections.

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19-04-2012 дата публикации

Niobium based superconducting radio frequency(scrf) cavities comprising niobium components joined by laser welding, method and apparatus for manufacturing such cavities

Номер: US20120094839A1
Принадлежит: India Atomic Energy Department of

Niobium or its alloy based Superconducting Radio Frequency (SCRF) Cavities involving atleast one laser beam welded components in the SCRF cavity welded from inside surface of the wall of cavity directed to achieving more than half the thickness to full depth penetration with minimum HAZ, minimizing distortion and shrinkage. The method ensures improved weld quality and surface finish substantially free of any weld defects. Also disclosed is the welding nozzle system and welding rigs adapted to facilitate such laser welding of the Niobium or its alloy based Superconducting Radio Frequency (SCRF) Cavities. The invention is thus directed to enhancing productivity, ensuring consistent quality and reliability, enhanced weld penetration with minimum HAZ, smooth finish of weld joints at possible reduced costs.

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31-05-2012 дата публикации

Orthogonal integrated cleaving device

Номер: US20120132628A1
Принадлежит: Electro Scientific Industries Inc

An orthogonal integrated cleaving apparatus and methods of controlling such an apparatus are taught. The cleaving apparatus includes two cleaving devices mounted at right angles with respect to a mount facing a substrate to be processed. The non-metallic and/or brittle substrate is separated along two orthogonal axes without rotating or moving the substrate to a second machine by moving the mount or the substrate along the axes. Each cleaving device laser sequentially heats a surface of the substrate along a respective cutting axis, cools the cut area and then laser re-heats the cut area to form a clean break.

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14-06-2012 дата публикации

Laser processing system and overlay welding method

Номер: US20120145683A1
Принадлежит: HITACHI LTD

A laser processing system includes a laser processing head, a powder supply device, and a controller. The powder supply device supplies powder to the laser processing head. The laser processing head includes: a laser emission unit which irradiates a workpiece with laser light; and a powder supply unit which receives the powder supplied from a powder supply device to the laser processing head, and can supply the powder to a laser spot on the workpiece. The powder supply unit includes: a powder discharge unit which can discharge the powder toward the laser spot on the workpiece; and a powder-supply control mechanism which controls the amount of the powder to be supplied to the powder discharge unit, by distributing to the powder discharge unit at least a part of a flow of the powder supplied from the powder supply device. The controller controls the distributing by the powder-supply control mechanism.

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28-06-2012 дата публикации

Cutting apparatus

Номер: US20120160816A1
Автор: Anton W. HUBERT
Принадлежит: Individual

The invention relates to a cutting apparatus. A carrying device has a carrying bar extending above the cutting table and can be moved by an undercarriage transversely to the longitudinal axis of the carrying bar parallel to the plane of the cutting table. At least one cutting carriage is guided displaceably on the carrying bar in the direction of the longitudinal axis parallel to the plane of the cutting table and on which there is positioned a cutting device for generating a cutting beam directed at the cutting table. A protective housing being provided to cover the cutting beam and encloses the cutting device on all sides and relative to which the cutting carriage can be moved. The protective housing being provided on the carrying device and being moveable over the cutting table with the carrying device.

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19-07-2012 дата публикации

Method and System for Mitigation of Particulate Inclusions in Optical Materials

Номер: US20120180527A1

A method of fabricating an optical material includes providing input materials having a material softening temperature, melting the input materials, and flowing the melted input materials into a laser inclusion mitigation system. The melted input materials comprise one or more inclusions. The method also includes irradiating the input materials using a laser beam, fragmenting the one or more inclusions in response to the irradiating, and reducing a temperature of the input materials to less than the material softening temperature. The method further includes forming an optical material and annealing the optical material.

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09-08-2012 дата публикации

Method and apparatus for forming the separating lines of a photovoltaic module with series-connected cells

Номер: US20120202313A1
Автор: Walter Psyk
Принадлежит: SCHOTT SOLAR AG

For forming the separating lines, ( 5, 6, 7 ) which are produced in the functional layers ( 2, 3, 4 ) deposited on a transparent substrate ( 1 ) during manufacture of a photovoltaic module with series-connected cells (C 1 , C 2 , . . . ), there are used laser scanners ( 8 ) whose laser beam ( 14 ) produces in the field ( 17 ) scanned thereby a plurality of adjacent separating line sections ( 18 ) in the functional layer ( 2, 3, 4 ). The laser scanners ( 8 ) are then moved relative to the coated substrate ( 1 ) in the direction (Y) of the separating lines ( 5, 6, 7 ) by a distance corresponding at the most to the length (L) of the scanned field ( 17 ) to thereby form continuous separating lines ( 5, 6, 7 ) through mutually flush separating line sections ( 18 ).

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16-08-2012 дата публикации

Scanned laser light source

Номер: US20120205347A1
Принадлежит: Applied Materials Inc

The thermal processing device includes a stage, a continuous wave electromagnetic radiation source, a series of lenses, a translation mechanism, a detection module, a three-dimensional auto-focus, and a computer system. The stage is configured to receive a substrate thereon. The continuous wave electromagnetic radiation source is disposed adjacent the stage, and is configured to emit continuous wave electromagnetic radiation along a path towards the substrate. The series of lenses is disposed between the continuous wave electromagnetic radiation source and the stage, and are configured to condense the continuous wave electromagnetic radiation into a line of continuous wave electromagnetic radiation on a surface of the substrate. The translation mechanism is configured to translate the stage and the line of continuous wave electromagnetic radiation relative to one another. The detection module is positioned within the path, and is configured to detect continuous wave electromagnetic radiation.

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16-08-2012 дата публикации

Laser machining apparatus with switchable laser system and laser machining method

Номер: US20120205356A1
Автор: Christoph Plüss
Принадлежит: Individual

A laser machining apparatus and method for producing from a workpiece a rotating cutting tool having a cutting edge and a flank. The laser machining apparatus works in two different operating modes. In the first operating mode, a first laser head is used for machining the workpiece at high advance speeds of the workpiece relative to the first laser head to form a rough desired contour with pulses having a duration in the nanosecond range resulting in laser melt cutting. Subsequently, the laser machining apparatus is operated in the second operating mode generating laser pulses with having a pulse duration in the picosecond range. In the second operating mode, a second laser head is activated by means of an optical scanner system and directs the laser pulses onto a two-dimensional pulse area on the surface of the workpiece, the material removal is accomplished by laser ablation.

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30-08-2012 дата публикации

Laser processing method and apparatus

Номер: US20120219031A1
Автор: Tadashi TOKIWA
Принадлежит: NHK Spring Co Ltd

A laser processing method processes spots on an object in a scan area with a laser beam emitted from a laser emitter. The method includes steps of covering the scan area in such a way as to transmit the laser beam and define a closed space over the scan area, jetting an inert gas into the closed space so that the jetted inert gas forms a gas curtain sweeping along the scan area in the closed space, and discharging the inert gas from the closed space while maintaining a positive pressure in the closed space, thereby removing plumes from the spots processed with the laser beam and preventing the spots from oxidizing. The method is capable of stably laser-processing the object without changing the color of the processed spots.

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06-09-2012 дата публикации

Annealing method and annealing apparatus

Номер: US20120225568A1
Принадлежит: Tokyo Electron Ltd

An annealing method irradiates a target object, having a film formed on its surface, with a laser beam to perform an annealing process to the target object. The surface of the target object is irradiated with the laser beam obliquely at an incident angle that is determined to achieve an improved laser absorptance of the film.

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27-09-2012 дата публикации

Wafer dividing method

Номер: US20120244682A1
Автор: Kei Tanaka
Принадлежит: Disco Corp

In a wafer dividing method, a wafer is held by a chuck table of a laser beam processing apparatus. A modified layer is formed by radiating a laser beam having a wavelength that transmits the laser beam through the wafer, while adjusting the beam convergence point to a position inside of the wafer, so as to form a pair of modified layers the interval of which is greater than the width of a cutting edge of a cutting blade and smaller than the width of planned dividing lines, on the back side of the wafer at both sides of each of the planned dividing lines. The wafer is adhered to a dicing tape and divided into individual devices by cutting along the dividing lines.

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18-10-2012 дата публикации

Method for Printing a Substrate Using an Anilox Roll, an Anilox Roll for a Printing Method and a Printing Apparatus

Номер: US20120260812A1
Принадлежит: Apex Europe BV

The invention relates to an anilox roll for a printing apparatus. The anilox roll comprises a cylinder having a surface. The surface comprises a fluid distribution structure for receiving, distributing and transferring a fluid such as an ink. The fluid distribution structure comprises a channel formed in the surface having channel walls. This channel is arranged for distributing the fluid over the fluid distribution structure. The channel comprises channel parts, wherein the courses of connected channel parts are at an angle with respect to each other for preventing a linear distribution of the fluids to be received in a course direction of the channel, allowing a meandering distribution of the fluid to be received in the channel. Side walls of the channel are arranged for allowing a meandering flow of the fluid throughout the fluid distribution surface.

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18-10-2012 дата публикации

Method and Apparatus for Forming an Anilox Roll

Номер: US20120261394A1
Принадлежит: Apex Europe BV

The invention relates to a method and apparatus for forming an anilox roll. The method includes supplying a cylinder of the anilox roll that has an outer surface to be tooled, supplying at least a laser source and laser engraving the outer surface of the anilox roll with a laser spot that is formed by a laser source for obtaining a tooled anilox roll, and applying an optical guide in the light path of the laser for enabling the laser spot to move reciprocally on the outer surface to be tooled.

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01-11-2012 дата публикации

Laser match honing system and method

Номер: US20120273471A1
Принадлежит: ROBERT BOSCH GMBH

A laser match honing system and method are provided for processing one of a pair of mechanically matching components ( 1, 2 ) having matching portions ( 12, 22, 16, 26 ) that will be fitted with each other. A dimension of the matching portion ( 12, 16 ) of the first component ( 1 ) is measured and is then used for calculating the desired dimension of the corresponding matching portion ( 22, 26 ) of the second component ( 2 ). An actual dimension of the matching portion ( 22, 26 ) of the second component ( 2 ) is also measured. Then, the matching portion ( 22, 26 ) of the second component ( 2 ) is honed by laser beam in the condition that the actual dimension is not equal to the desired dimension.

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01-11-2012 дата публикации

Laser processing systems and methods for beam dithering and skiving

Номер: US20120273472A1
Принадлежит: Electro Scientific Industries Inc

A laser processing system includes a first positioning system for imparting first relative movement of a beam path along a beam trajectory with respect to a workpiece, a processor for determining a second relative movement of the beam path along a plurality of dither rows, a second positioning system for imparting the second relative movement, and a laser source for emitting laser beam pulses. The system may compensate for changes in processing velocity to maintain dither rows at a predetermined angle. For example, the dither rows may remain perpendicular to the beam trajectory regardless of processing velocity. The processing velocity may be adjusted to process for an integral number of dither rows to complete a trench. A number of dither points in each row may be selected based on a width of the trench. Fluence may be normalized by adjusting for changes to processing velocity and trench width.

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29-11-2012 дата публикации

Printing Method With a Printing Apparatus Provided With an Anilox Roll

Номер: US20120298002A1
Принадлежит: Apex Europe BV

A printing apparatus has a printing device having a supply for a substrate to be printed and a supply for ink. The printing device has a printing roll with an image and an anilox roll mounted in a bearing. The anilox roll comprising a cylinder having a surface with a fluid distribution structure for receiving the fluid. The fluid distribution structure has a channel formed in the surface for distributing the fluid over the fluid distribution structure. The channel having a course and opposite channel walls positioned next to each other in a relative parallel oscillating fashion. Printing in a first operational mode, heavy layers of ink on said substrate with relatively large fluid droplets and Printing in a second operational mode, details on said substrate with relatively small fluid droplets.

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29-11-2012 дата публикации

Apparatus and method for repair of defects in an electronic energy control or display device

Номер: US20120302122A1
Принадлежит: Sage Electrochromics Inc

An apparatus for repair of a defect in an electronic energy control device may include a position indicating means for indicating a position at which to fixedly position a mounting unit relative to a portion of an electronic energy control device including a defect to be repaired, where the device is fixed in position. An imaging and repair assembly of the apparatus has an optical imaging range and a laser repair range. When the mounting unit is mounted to a support surface to fixedly position the mounting unit at the position indicated by the position indicating means and the imaging and repair assembly is attached to the mounting unit, the portion of the electronic energy control device is within the imaging range and the repair range.

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03-01-2013 дата публикации

Laser ablation tooling via distributed patterned masks

Номер: US20130003030A1
Автор: Thomas R.J. Corrigan
Принадлежит: 3M Innovative Properties Co

A distributed patterned mask for use in a laser ablation process to image a complete pattern onto a substrate. The mask has a plurality of apertures for transmission of light and non-transmissive areas around the apertures. When the apertures for the distributed pattern are repeatedly imaged on a substrate, structures within the distributed pattern merge within different areas of the imaged pattern to create the complete pattern with distributed stitch lines in order to reduce or eliminate the stitching effect in laser ablation. The mask can also form a sparse and distributed pattern including apertures that individually form merging portions of the complete pattern and collectively form a distributed pattern.

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17-01-2013 дата публикации

Laser processing machine

Номер: US20130015166A1
Автор: Chun-Hao Li
Принадлежит: Individual

A laser processing machine includes a cavity, a laser system, at least one processing platform, and at least one upper motion platform. The laser system is disposed at a lower part inside the cavity, and used for outputting a laser beam. A traveling direction of the laser beam is opposite to the gravity direction. The processing platform is disposed at an upper part inside the cavity, and includes an adsorption surface and a connection surface facing each other. The adsorption surface is located below the connection surface, and is used for adsorbing a workpiece. The upper motion platform is disposed at the upper part inside the cavity, and is correspondingly connected to the connection surface of the processing platform, in order to cause the processing platform to move.

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07-02-2013 дата публикации

Laser Processing Machines

Номер: US20130032583A1
Принадлежит: TRUMPF MASCHINEN GRUESCH AG

A laser processing machine includes a workpiece support, a movement unit that is movable relative to the workpiece support, the movement unit being configured to move a laser processing head over the workpiece support, and a switch cabinet in which one or more control components of the laser processing machine are provided. An arrangement of the switch cabinet provides a free movement space disposed underneath at least a portion of the switch cabinet, wherein at least a portion of the movement unit is disposed within the free movement space.

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11-04-2013 дата публикации

METHOD AND DEVICE FOR LASER-JOINING SHEET METAL PARTS

Номер: US20130087538A1
Принадлежит: SCANSONIC MI GMBH

The invention relates to a device and to an associated method for joining sheet metal parts, each with a flange, by laser, wherein the flanges of the sheet metal parts () are joined into one connecting flange. The device has a clamping device () for clamping the sheet metal parts () to be joined in a main clamping direction running transversely to the connecting flange and a beam guidance system for a laser beam (). Moreover, the device has a compensation shaft () which tracks the laser beam () according to a relative movement between the connecting flange and a guidance apparatus. 1. A device for joining sheet metal parts each with a flange , by laser , wherein the flanges of the sheet metal parts are joined into one connecting flange , in which the flanges of the sheets to be joined abut flat against each other and thus form a joint with a flange planewherein the device has clamping device to clamp the sheet metal parts to be joined in a main clamping direction running transversely to the connecting flange and a beam guidance system for a laser beam which is designed to route a laser beam substantially parallel to the connecting flange and transverse to the clamping direction to a front side of at least one of the flanges of the sheet metal parts to be joined,whereinthe device further comprises a compensation shaft which, when the device is connected to a guidance apparatus, tracks the laser beam according to a relative motion between the connecting flange and the guidance apparatuscharacterized in that the beam guidance system has at least one optical element with which a beam angle at which the laser beam runs on a plane perpendicular to the main clamping direction is to be influenced in such a way that switching between different beam angles is possible in the area of a possible processing point such that in each instance a lateral angle is produced away from a sheet part projecting beyond the joint andthat the device has an apparatus for monitoring the ...

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25-04-2013 дата публикации

Laser machining apparatus

Номер: US20130098876A1
Принадлежит: Honda Motor Co Ltd

A laser machining apparatus is provided with: a workpiece support unit; a machining head; and a machining head moving unit. The workpiece support unit includes: an end support part that supports a width end of a workpiece; and an inside support part that supports an inside portion of the workpiece in a width direction. The end support part is movable in a longitudinal direction independently from the inside support part in response to a movement of the machining head.

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16-05-2013 дата публикации

Method and Device for Laser Material Processing of a Workpiece

Номер: US20130119026A1
Принадлежит: TRUMPF WERKZEUGMASCHINEN GMBH + CO. KG

Cutting a workpiece with a laser beam includes using the laser beam to melt and/or vaporize at least a portion of the workpiece, and moving at least one of the workpiece and the laser beam relative to one another to form a cutting front on the workpiece, in which the laser beam includes either at least two different radially polarized beam portions offset relative to each along an advancing direction of the laser beam, or multiple laser beam strips extending along the advancing direction of the laser beam. Each laser beam strip has a different linear polarization direction, and the advancing direction corresponds to a direction along which the workpiece is cut by the laser beam. 1. A method for cutting a workpiece with a laser beam , the method comprising:using the laser beam to melt and/or vaporize at least a portion of the workpiece;moving at least one of the workpiece and the laser beam relative to one another in an advancing direction to form a cutting front on the workpiece,wherein the laser beam comprises either at least two different radially polarized beam portions offset relative to each other along the advancing direction, or a plurality of laser beam strips extending along the advancing direction, wherein each laser beam strip has a different linear polarization direction, and wherein the advancing direction corresponds to a direction along which the workpiece is cut by the laser beam.2. The method according to claim 1 , wherein the laser beam comprises the plurality of laser beam strips claim 1 , the linear polarization direction of each laser beam strip subtends a corresponding angle to a longitudinal center plane of the laser beam claim 1 , and an angle size increases from the beam strips arranged near the longitudinal center plane toward the beam strips arranged furthest from the longitudinal center plane.3. The method according to claim 1 , wherein the laser beam comprises the two different radially polarized beam portions claim 1 ,wherein the at ...

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16-05-2013 дата публикации

Method of and apparatus for personalising a series of portable objects

Номер: US20130120515A1
Принадлежит: Datacard Corp

Embodiments of the invention provide a method of and apparatus for graphically marking a series of portable objects, such as a card, each portable object being graphically marked on a respective zone by a respective marking device, wherein the marking devices are configured to perform the same marking operation simultaneously on a plurality of portable objects.

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20-06-2013 дата публикации

Fibre optic laser machining equipment for etching grooves forming incipient cracks

Номер: US20130153554A1
Принадлежит: Rofin Lasag AG

A laser machining equipment for etching grooves in a wall of a mechanical part, or in a connecting rod for a spark ignition engine, includes a fiber optic laser device arranged to supply laser pulses. The fiber optic laser device is controlled so that laser pulses have a peak power of more than 400 W and at least two times greater than maximum mean power of the laser device, and duration of the laser pulses is below or within the nanosecond range of 1 ns to 1000 ns. The fiber optic laser device can be controlled in a quasi continuous wave (QCW) mode, or can be controlled in a Q-switch mode. The selected operating modes increase machining efficiency and produce a groove with an optimum transverse profile, particularly with a small mean radius of curvature at a bottom of the groove which then allows precise subsequent fracturing of the mechanical part with less force.

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27-06-2013 дата публикации

LASER OPTICS WITH PASSIVE SEAM TRACKING

Номер: US20130161299A1
Принадлежит: SCANSONIC MI GMBH

The present invention relates to a device for guiding a laser beam along a target path, particularly a joint. It has a laser beam input module that guides an incident laser beam onto a swiveling beam guiding device downstream from the laser beam input module. The beam guiding device projects the laser beam onto the target path. Said beam guiding device comprises a tactile sensor connected to the swiveling optic that is designed to perform a tactile scan of the target path and to deflect the swiveling optic appropriately. According to the invention, an intermediate focal point is located in the beam path of the laser beam between laser beam input module and swiveling optic. Moreover, the swivel axis of the swiveling optic runs through the intermediate focal point. 2. Device as set forth in claim 1 , characterized in that the laser beam input module is designed to focus the laser beam onto the intermediate focal point and the swiveling optic is designed to reproduce the intermediate focal point on the target path.3. Device as set forth in claim 2 , characterized in that the laser beam input module has an optical fiber and intermediate imaging optic claim 2 , with the intermediate imaging optic being designed to reproduce an end of the optical fiber facing it on the intermediate focal point.4. Device as set forth in claim 1 , characterized in that the laser beam input module is embodied as an optical fiber and the intermediate focal point is located on the side of the optical fiber facing the swiveling optic and the swiveling optic is designed to reproduce the intermediate focal point on the target path.5. Device as set forth in claim 1 , characterized in that laser beam input module is designed to generate a non-focused beam path and the swiveling optic possesses a virtual intermediate focus that forms the intermediate focal point and is located in the collimated beam path.6. Device as set forth in claim 1 , whereinthe tactile sensor and the swiveling optic are ...

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27-06-2013 дата публикации

LASER-IRRADIATED THIN FILMS HAVING VARIABLE THICKNESS

Номер: US20130161312A1
Автор: Im James S.

A crystalline film includes a first crystalline region having a first film thickness and a first crystalline grain structure; and a second crystalline region having a second film thickness and a second crystalline grain structure. The first film thickness is greater than the second film thickness and the first and second film thicknesses are selected to provide a crystalline region having the degree and orientation of crystallization that is desired for a device component. 1. A system for processing a film comprising:a laser source capable of producing a pulsed laser beam;one or more optical elements capable of generating a first laser beam and a second laser beam having different beam characteristics from the pulsed laser beam, wherein the first laser beam has a first energy density to melt a first region of a film to be crystallized to form a first crystalline region having a first grain structure and the second laser beam has a second energy density sufficient to melt a second region of the film to be crystallized to form a second crystallized region having a second grain structure, wherein the first energy density is greater than the second energy density;a stage configured to support and position a film to be crystallized such that the first laser beam is directed to and irradiates a first portion of the stage and a second laser beam is directed to and irradiates a second portion of the stage; anda computer for controlling the laser source, optical elements, and stage to facilitate the delivery of the first laser beam and the second laser beam to portions of the stage corresponding to first and second regions of a film to be crystallized..2. The system of claim 1 , comprising a film positioned on the stage.3. The system of claim 2 , wherein the first laser beam irradiates a first region of the film and the second laser beam irradiates a second region of the film.4. The system of claim 3 , wherein the irradiations of the first region of the film and the second ...

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04-07-2013 дата публикации

Contact element for diverters of electrochemical cells

Номер: US20130171494A1
Принадлежит: Li Tec Battery GmbH

What is proposed is a contact element for connection between electrically conducting, preferably plate-shaped, components, in particular diverters of electrochemical cells, consisting of different materials, wherein the contact element is produced from at least two elements ( 32, 34 ), wherein at least two elements are joined by means of laser induction rollers, wherein a first element is adapted for connection to a first of the electrically conducting components, wherein a second element is adapted for connection to a second of the electrically conducting components, and wherein the first and the second element have an electrically conducting connection to one another. Therefore, a connection with high process reliability can be provided between diverters of electrochemical cells.

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18-07-2013 дата публикации

LASER CUTTING SYSTEM AND METHODS FOR CREATING SELF-RETAINING SUTURES

Номер: US20130180966A1
Принадлежит:

A laser-machining system and method is disclosed for forming retainers on a suture thread. The laser system is preferably a femtosecond laser system which is capable of creating submicron features on the suture thread while preserving strength of the suture thread. The laser-machining system enables creation of retainers and self-retaining suture systems in configurations which are difficult and/or impossible to achieve using mechanical cutting technology. 1. A method for making a self-retaining suture comprising;(a) providing a suture thread having a surface;(b) identifying a first volume of suture material on the surface of the thread;(c) identifying a second volume of suture material from within the first volume of suture material;(d) directing a laser beam at the suture thread to ablate all of the suture material within the first volume of suture material with the exception of the second volume of suture material whereby the second volume of suture material forms a tissue retainer protruding from laser cut surface of the suture thread; and(e) repeating steps (b), (c) and (d) to generate a plurality of tissue retainers protruding from the suture thread.2. The method of claim 1 , wherein step (c) comprises identifying a second volume of suture material from within the first volume of suture material the second volume being less than 50% of the first volume.3. The method of claim 1 , wherein step (c) comprises identifying a second volume of suture material from within the first volume of suture material the second volume being less than 25% of the first volume.4. The method of claim 1 , wherein:step (c) comprises identifying a conical subvolume of suture material from within the volume of suture material wherein the subvolume of suture material; andstep (d) comprises directing a laser beam at the suture thread to ablate all of the suture material within the selected volume of suture material with the exception of the conical subvolume of suture material whereby the ...

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18-07-2013 дата публикации

LASER MICRO/NANO PROCESSING SYSTEM AND METHOD

Номер: US20130183833A1

A laser micro/nano processing system () comprises: a laser light source used to provide a first laser beam having a first wavelength and a second laser beam having a second wavelength different from the first wavelength, with the pulse width of the first laser beam being in the range from a nanosecond to a femtosecond; an optical focusing assembly used to focus the first laser beam and the second laser beam to the same focal point; and a micro mobile platform () controlled by a computer. Also disclosed are a method for micro/nano-processing photosensitive materials with a laser and a method for fabricating a device with a micro/nano structure using laser two-photon direct writing technology. In the system and methods, spatial and temporal overlapping of two laser beams is utilized, so as to obtain a micro/nano structure with a processing resolution higher than that of a single laser beam, using an average power lower than that of a single laser beam. 1. A laser micro/nano fabrication system , comprising:a laser light source for providing a first laser beam having a first wavelength and a second laser beam having a second wavelength being different from the first wavelength, the first laser beam having a pulse width in range of nanosecond to femtosecond;an optical focusing assembly for focusing the first laser beam and the second laser beam to a same focal point; anda computer controlled micromovement stage.2. The laser micro/nano fabrication system of claim 1 , wherein the first laser beam has a repetition frequency in range of 1 Hz-200 MHz claim 1 , and a wavelength in range of 157 nm-1064 nm.3. The micro/nano fabrication system of claim 1 , whereinThe second laser beam has a pulse width in range of nanosecond to femtosecond, andthe system further comprises a optical delay assembly for adjusting the optical path of the first laser beam or the optical path of the second laser beam such that the lag between the times when the first laser beam and the second laser ...

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25-07-2013 дата публикации

Processing method for wafer

Номер: US20130189806A1
Автор: Hitoshi Hoshino
Принадлежит: Disco Corp

A wafer has, on a front face thereof, a device region in which a device is formed in regions partitioned by a plurality of scheduled division lines. An outer peripheral region surrounds the device region. A reflecting film of a predetermined width is formed from the outermost periphery of the wafer on a rear face of the wafer corresponding to the outer peripheral region. The front face side of the wafer is held in a chuck table, and a focal point of a pulsed laser beam of a wavelength having permeability through the wafer is positioned in the inside of the wafer corresponding to the scheduled division lines. The pulsed laser beam is irradiated from the rear face side of the wafer to form modified layers individually serving as a start point of division along the scheduled division lines in the inside of the wafer.

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01-08-2013 дата публикации

Laser Puncher for Punching Hole on Tipping Paper in a Curved Manner

Номер: US20130193120A1

The present invention discloses a laser puncher for punching holes on tipping paper in a curve manner, which comprises a panel, a light guiding cylinder, a laser connected with the light guiding cylinder, a transmission system driving a piece of tipping paper to move and at least one focusing optical head and at least one driving motor is fixed on the panel, a screw shaft is connected with the driving shaft of the driving motor, a nut is connected with the screw shaft and fixedly connected with a connecting rod, the other end of which is fixedly connected with at least one moving optical cylinder, one end of which is provided with the light guiding cylinder, and the other end of which penetrates the panel to be fixedly connected with the focusing optical head, the external periphery of the moving optical cylinder is provided with an anti-rotation linear bearing, which is fixed on the panel, and the driving motor drives the focusing optical head to reciprocate back and forth via the screw shaft, the nut, the connecting rod and the moving optical cylinder. The present invention can increase the identifiability of tipping papers on which holes are punched with a laser puncher as well as the air permeability of tipping papers. 1. A laser puncher for punching holes on tipping paper in a curved manner , comprising;a panel;a light guiding cylinder;a laser connected with the light guiding cylinder;a transmission system driving a piece of tipping paper to move; andat least one focusing optical head, wherein at least one driving motor is fixed on the panel, a screw shaft is connected with the driving shaft of the driving motor, a nut is connected with the screw shaft and fixedly connected with a connecting rod, the other end of which is fixedly connected with at least one moving optical cylinder, one end of which is fitted glidingly in the light guiding cylinder, and the other end of which penetrates the panel to be fixedly connected with the focusing optical head, the ...

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08-08-2013 дата публикации

Method for monitoring the quality of industrial processes and system therefrom

Номер: US20130199296A1
Принадлежит: Centro Ricerche Fiat SCpA

A method for monitoring the quality of an industrial working process, which includes identifying defects of the working process, comprises acquiring at least one signal having multiple frequency components from the industrial working process, decomposing the at least one signal having multiple frequency components in signals having single frequency components, calculating the information content for each signal having a single frequency component, analyzing the information content for each signal having a single frequency component, and if the value of the information content of the signal at the lowest single frequency component does not represent a main percentage of the information content of the whole acquired signal, the acquired signal having multiple frequency components is evaluated as indicative of a working process with defects and a defect analysis step is performed on the signal having multiple frequency components.

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08-08-2013 дата публикации

LINK PROCESSING WITH HIGH SPEED BEAM DEFLECTION

Номер: US20130200050A1
Принадлежит: GSI GROUP CORPORATION

The present invention relates to the field of laser processing methods and systems, and specifically, to laser processing methods and systems for laser processing multi-material devices. Systems and methods may utilize high speed deflectors to improve processing energy window and/or improve processing speed. In some embodiments, a deflector is used for non-orthogonal scanning of beam spots. In some embodiment, a deflector is used to implement non-synchronous processing of target structures. 164-. (canceled)65. A method for laser processing a multi-material device including a substrate and at least one target structure , the method comprising:grouping microstructures into sets of N structures;producing P laser pulses, combined pulses, pulse groups or pulse bursts for each set of N microstructures in a pass of a laser beam waist position over said sets of target structures, wherein P is not equal to N;processing at least one target structure during said pass.66. The method of claim 65 , wherein P is less than N.67. The method of claim 65 , wherein N=M·P claim 65 , wherein M is an integer.68. The method of claim 65 , wherein at least one microstructure is a member of more than one group.69. The method of claim 65 , wherein N=2 claim 65 , and P=1.70. The method of claim 65 , wherein N=3 claim 65 , and P=1.71. The method of claim 70 , wherein some of said microstructures are members of only one group claim 70 , and some of said microstructures are members of two groups.7285-. (canceled) This application is a divisional of U.S. application Ser. No. 12/233,476, filed on Sep. 18, 2008, and entitled Link Processing with High Speed Beam deflection, which application claims priority under 35 U.S.C. Section 119(e) to Provisional Application No. 60/994,404, filed on Sep. 19, 2007. Both of these applications are incorporated by reference in their entireties.1. Field of the InventionThe present invention relates to the field of laser processing methods and systems, and ...

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29-08-2013 дата публикации

Apparatus and method for repair of defects in an electronic energy control or display device

Номер: US20130225027A1
Принадлежит: Sage Electrochromics Inc

An apparatus for repair of a defect in an electronic energy control device may include a position indicating means for indicating a position at which to fixedly position a mounting unit relative to a portion of an electronic energy control device including a defect to be repaired, where the device is fixed in position. An imaging and repair assembly of the apparatus has an optical imaging range and a laser repair range. When the mounting unit is mounted to a support surface to fixedly position the mounting unit at the position indicated by the position indicating means and the imaging and repair assembly is attached to the mounting unit, the portion of the electronic energy control device is within the imaging range and the repair range.

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12-09-2013 дата публикации

Method for Adjusting the Processing Position of at least one Processing Device not Clamping a Product Web to be Processed

Номер: US20130235139A1
Принадлежит: ROBERT BOSCH GMBH

A method for adjusting the processing position of at least one processing device not clamping a product web to be processed within the context of longitudinal register control in a processing machine includes arranging the at least one processing device in a web section which is delimited by two clamping points. The method further includes applying an actuating variable for adjusting the processing position to the at least one processing device within the context of feedforward control, and calculating the actuating variable for adjusting the processing position on the basis of a register deviation expected from a control action of a tensile force control device for controlling the tensile force in the web section. 1. A method for adjusting the processing position of at least one processing device not clamping a product web to be processed within the context of longitudinal register control in a processing machine , comprising:arranging the at least one processing device in a web section which is delimited by two clamping points;applying an actuating variable for adjusting the processing position to the at least one processing device within the context of feedforward control; andcalculating the actuating variable for adjusting the processing position on the basis of a register deviation resulting from a control action of a tensile force control device for controlling the tensile force in the web section.2. The method according to claim 1 , wherein the actuating variable is calculated from a speed of the two clamping points and a stretch of the product web.3. The method according to claim 1 , wherein the actuating variable is calculated from a speed of the at least one processing device.4. The method according to claim 1 , wherein the actuating variable is calculated from positions of the at least one processing device and the two clamping points.5. The method according to claim 1 , wherein the actuating variable is applied to the at least one processing device in ...

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19-09-2013 дата публикации

LASER PROCESSING APPARATUS

Номер: US20130240494A1
Принадлежит: DISCO CORPORATION

A laser processing apparatus including a workpiece holding unit for holding a workpiece and a laser beam applying unit for applying a laser beam to the workpiece held by the workpiece holding unit. The laser beam applying unit includes a laser oscillator for oscillating a laser beam, a focusing unit for focusing the laser beam oscillated by the laser oscillator onto the workpiece held by the workpiece holding unit, and an optical system provided between the laser oscillator and the focusing unit for transmitting the laser beam oscillated by the laser oscillator. The laser beam applying unit further includes a wavelength converting mechanism provided between the optical system and the focusing unit for converting the wavelength of the laser beam oscillated by the laser oscillator into a short wavelength. 1. A laser processing apparatus comprising:workpiece holding means for holding a workpiece;laser beam applying means for applying a laser beam to said workpiece held by said workpiece holding means, said laser beam applying means including laser beam oscillating means for oscillating a laser beam, focusing means for focusing said laser beam oscillated by said laser beam oscillating means onto said workpiece held by said workpiece holding means, and an optical system provided between said laser beam oscillating means and said focusing means for transmitting said laser beam oscillated by said laser beam oscillating means; anda wavelength converting mechanism provided between said optical system and said focusing means for converting the wavelength of said laser beam oscillated by said laser beam oscillating means into a short wavelength.2. The laser processing apparatus according to claim 1 , wherein said wavelength converting mechanism includes wavelength converting means having a wavelength conversion crystal claim 1 , and a Pellin-Broca prism for dividing an input laser beam into a laser beam converted in wavelength by said wavelength converting means and a laser ...

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26-09-2013 дата публикации

Method and system for eliminating external piercing in nc cutting of nested parts

Номер: US20130247730A1
Автор: Matthew Fagan
Принадлежит: Individual

This invention pertains to machinery and methods for cutting a workpiece utilizing a cutting tool into at least two parts having prescribed shapes from a metal plate comprising the steps of: identifying each of the parts by one or more contour lines; cutting a workpiece along one of the identifying contour lines into one of the parts; creating at least one path diversion, wherein the diversion has an associated bounded region or opportunity; cutting the workpiece along a contour line associated with the opportunity; resuming the cutting of the part along the identifying contour line with minimal damage to the part being cut; finishing the cutting of the part and then moving the cutting tool to the opportunity and thence to an associated adjacent identifying contour line and then repeating the process until all parts have been manufactured.

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26-09-2013 дата публикации

Laser Cladding Surface Treatments

Номер: US20130248219A1
Принадлежит: Apple Inc

A metal enclosure has a surface region which is coated with cladding material using a laser cladding process. The metal enclosure can form at least a portion of an electronic device housing. All or part of one or more surfaces of the enclosure can be coated with cladding material. The coating of cladding material can be varied at selective regions of the enclosure to provide different structural properties at these regions. The coating of cladding material can be varied at selective regions to provide contrast in cosmetic appearance.

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03-10-2013 дата публикации

Laser marking

Номер: US20130256284A1
Принадлежит: RENISHAW PLC

A method and apparatus is disclosed for producing precision marks for a metrological scale in the form of a stainless steel ribbon. A laser is used to produce ultra-short pulses which have a fluence at the ribbon such that ablation takes place. The laser light can be scanned via scanner and the pitch of the marks can be controlled. The ablative technique causes little thermal input and improves the accuracy of the scale.

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17-10-2013 дата публикации

METHODS FOR STRIPPING AND MODIFYING SURFACES WITH LASER-INDUCED ABLATION

Номер: US20130270234A1
Принадлежит:

A coating removal apparatus removes a coating from a surface. The apparatus has a movable scanning head and scanning optics. The scanning head is movable in one dimension, and the scanning optics adjust in two dimensions to compensate for movement of the scanning head to implement long range scanning with a uniform scanning pattern. Further, a surface roughness is determined by measuring specular and scattered reflections at various angles. For composite surfaces, the apparatus utilizes UV laser radiation and a controlled atmosphere to remove coating and alter the chemical characteristics at the surface. 111-. (canceled)12. A method of removing a coating from a surface , the method comprising:a. provide a laser light to a scanning head;b. moving the scanning head in a first direction substantially parallel to the surface at a constant speed thereby applying a first scanning pattern component to the laser light;c. configuring a first single-axis laser scanner within the scanning head to align the laser light along the second direction thereby applying a second scanning pattern component to the laser light;d. configuring a second single-axis laser scanner within the scanning head to align the laser light along a second direction thereby applying a third scanning pattern component, wherein the second scanning pattern component is equal and opposite in magnitude to the first scanning pattern component during sequential periods of time; ande. directing the laser light onto the surface according to a uniform scanning pattern, wherein the uniform scanning pattern if formed according to the first scanning pattern component, the second scanning pattern component, and the third scanning pattern component.13. The method of wherein the scanning pattern comprises a series of rows claim 12 , each row oriented parallel to the second direction.14. The method of further comprising configuring the first single-axis laser scanner to rotate within a first plane claim 13 , wherein ...

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17-10-2013 дата публикации

APPARATUS AND METHOD FOR LASER CUTTING USING A SUPPORT MEMBER HAVING A GOLD FACING LAYER

Номер: US20130270239A1
Принадлежит: 3 Innovative Properties Company

The present application relates to an apparatus () for supporting sheet material during cutting by laser radiation comprising a support member () having a gold facing layer. A method for cutting sheet material using such apparatus is also defined. 1. An apparatus for laser converting sheet material , said apparatus comprising a support member having a gold facing layer and a laser radiating station , wherein said support member is configured to support a sheet material in target position to said laser radiating station.2. The apparatus of wherein said support member is a continuous belt.3. The apparatus of wherein said support member comprises a backing member.4. The apparatus of wherein said support member comprises a stainless steel backing member.5. The apparatus of wherein said support member comprises in order on the first face of the backing member claim 4 , a tie layer claim 4 , an optional hardness enhancement layer claim 4 , a buffer layer claim 4 , a gold facing layer claim 4 , and a transmissive low surface energy coating.6. The apparatus of wherein said tie layer comprises at least one of titanium nitride claim 5 , zirconium nitride claim 5 , and titanium aluminum nitride claim 5 , and combinations thereof7. The apparatus of wherein said support member has vacuum channels therethrough.8. A method of laser converting sheet material comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(1) providing an apparatus of ;'}(2) providing said sheet material; and(3) directing laser radiation at said sheet material to form cuts in said sheet material. This invention relates to an apparatus for laser cutting, i.e., using laser radiation for converting, sheets such optical films and a method for using such apparatus.Multilayer optical films have been demonstrated by coextrusion of alternating polymer layers. For example, U.S. Pat. No. 3,610,724 (Rogers), U.S. Pat. No. 4,446,305 (Rogers et al.), U.S. Pat. No. 4,540,623 (Im et al.), U.S. Pat. No. 5,448,404 ( ...

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17-10-2013 дата публикации

Method for welding steel material to ni-based superalloy and welding joint

Номер: US20130272781A1
Принадлежит: IHI Corp

When a turbine impeller ( 4 ) formed from an Ni-based superalloy and a rotor shaft ( 2 ) formed from a steel material are joined by being fused together via welding in a boundary portion, a mixing ratio of a welding metal ( 6 ) that is formed in the boundary portion by fusing together the Ni-based superalloy forming the turbine impeller ( 4 ) and the steel material forming the rotor shaft ( 2 ) is between 0.5 and 0.8. As a result, it is possible to obtain a sound welding joint in which there are no cracks in the boundary between the welding metal ( 6 ) and the Ni-based superalloy ( 4 ).

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14-11-2013 дата публикации

ACOUSTO-OPTIC DEFLECTOR APPLICATIONS IN LASER PROCESSING OF DIELECTRIC OR OTHER MATERIALS

Номер: US20130299468A1
Принадлежит:

A laser processing system for micromachining a workpiece includes a laser source to generate laser pulses for processing a feature in a workpiece, a galvanometer-driven (galvo) subsystem to impart a first relative movement of a laser beam spot position along a processing trajectory with respect to the surface of the workpiece, and an acousto-optic deflector (AOD) subsystem to effectively widen a laser beam spot along a direction perpendicular to the processing trajectory. The AOD subsystem may include a combination of AODs and electro-optic deflectors. The AOD subsystem may vary an intensity profile of laser pulses as a function of deflection position along a dither direction to selectively shape the feature in the dither direction. The shaping may be used to intersect features on the workpiece. The AOD subsystem may also provide rastering, galvo error position correction, power modulation, and/or through-the-lens viewing of and alignment to the workpiece. 1. A method for dithering a laser beam to process features in a workpiece , the method comprising:imparting, using a first positioning system, first relative movement of a laser beam spot position along a processing trajectory;imparting, using a second positioning system, second relative movement of the laser beam spot position along a dither direction relative to the processing trajectory, wherein the second relative movement is superimposed on the first relative movement, and wherein the second relative movement is at a substantially higher velocity than that of the first relative movement;amplitude modulating, using the second positioning system, a laser beam based on a specific feature characteristic at one or more corresponding target locations on the workpiece; andemitting the laser beam to the workpiece during the second relative movement to effectively widen a laser beam spot at the workpiece in the dither direction.2. The method of claim 1 , further comprising:controlling one or more acousto-optic ...

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05-12-2013 дата публикации

Methods of cutting glass using a laser

Номер: US20130323469A1
Принадлежит: Corning Inc

A method of cutting a glass article includes translating a laser beam relative to a first surface of the glass article. The laser beam includes a beam waist having a center. The center of the beam waist of the laser beam is positioned at or below a second surface of the glass article. The laser beam creates a plurality of defects along a score line in the glass article such that the plurality of defects extends a distance into the glass article, and at least some individual defects of the plurality of defects are non-orthogonal to the first surface of the glass article and are biased in a direction of translation of the laser beam. Glass articles having edge defects are also disclosed.

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26-12-2013 дата публикации

Monitoring method and apparatus for excimer laser annealing process

Номер: US20130341310A1
Автор: Paul VAN DER WILT
Принадлежит: Coherent Lasersystems GmbH and Co KG

A method is disclosed evaluating a silicon layer crystallized by irradiation with pulses form an excimer-laser. The crystallization produces periodic features on the crystalized layer dependent on the number of and energy density in the pulses to which the layer has been exposed. An area of the layer is illuminated with light. A detector is arranged to detect light diffracted from the illuminated area and to determine from the detected diffracted light the energy density in the pulses to which the layer has been exposed.

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02-01-2014 дата публикации

OPTICAL SCANNING DEVICE

Номер: US20140005643A1

An optical scanning device is adapted to output a light beam, and includes a base, a transmission mechanism, a rotary power source and a holder. The transmission mechanism is disposed on the base. The rotary power source is adapted to generate a rotation and mechanically connected to the transmission mechanism so as to drive the transmission mechanism to generate the rotation. The holder is disposed to the transmission mechanism and includes a first lateral section, wherein when the transmission mechanism and the holder are synchronously rotated, the first lateral section also rotates the output light beam and thus the output light beam forms a light spot having a scanning area projected on a destination. 1. An optical scanning device adapted to output a light beam , the optical scanning device comprising:a base;a transmission mechanism disposed on the base;a rotary power source adapted to generate a rotation and mechanically connected to the transmission mechanism so as to drive the transmission mechanism to generate the rotation; anda holder disposed to the transmission mechanism and comprising a first lateral section;wherein when the transmission mechanism and the holder are synchronously rotated, the first lateral section also rotates the outputted light beam and thus the outputted light beam forms a light spot having a scanning area projected on a destination.2. The optical scanning device according to claim 1 , further comprising:a poise, wherein the holder further comprises a second lateral section which is opposite to the first lateral section, the poise is disposed on the second lateral section of the holder for maintaining a stable balance of the holder when the holder is rotated.3. The optical scanning device according to claim 1 , further comprising:a light source disposed above the base and adapted to generate the light beam; andan optical reflector set comprising a first reflector and a second reflector, wherein the first reflector is disposed on the ...

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09-01-2014 дата публикации

HYBRID ULTRAPRECISION MACHINING DEVICE AND HYBRID ULTRAPRECISION MACHINING METHOD

Номер: US20140008340A1
Принадлежит: Panasonic Corporation

There is provided a hybrid ultraprecision machining device for manufacturing a micro-machined product from a workpiece, the machining device comprising: an electromagnetic-wave-machining means for roughly machining the workpiece; a precision-machining means for precisely machining the roughly machined workpiece, the precision-machining means being equipped with a replaceable cutting tool selected from the group consisting of a planar tool, a shaper tool, a fly-cutting tool, a diamond-turning tool and a micro-milling tool; a shape-measurement means for measuring a shape of the workpiece upon use of the electromagnetic-wave machining means and the precision-machining means; and a control means for controlling the electromagnetic-wave-machining means or the precision-machining means, based on information on the shape of the workpiece, the shape being measured by the shape-measuring means. 1. A hybrid ultraprecision machining device for manufacturing a micro-machined product from a workpiece , the machining device comprising:an electromagnetic-wave-machining means for roughly machining the workpiece;a precision-machining means for precisely machining the roughly machined workpiece, the precision-machining means being equipped with a replaceable cutting tool selected from the group consisting of a planar tool, a shaper tool, a fly-cut tool, a diamond-turning tool and a micro-milling tool;a shape-measurement means for measuring a shape of the workpiece upon use of the electromagnetic-wave machining means and the precision-machining means; anda control means for controlling the electromagnetic-wave-machining means or the precision-machining means, based on information on the shape of the workpiece, the shape being measured by the shape-measuring means.2. The hybrid ultraprecision machining device according to claim 1 , wherein a micro part of the micro-machined product has a dimension of 10 nm to 15 mm.3. The hybrid ultraprecision machining device according to claim 1 , ...

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16-01-2014 дата публикации

APPARATUS AND METHOD FOR MATERIAL PROCESSING USING A TRANSPARENT CONTACT ELEMENT

Номер: US20140014636A1
Принадлежит: CARL ZEISS MEDITEC AG

A method of preparing an apparatus for material processing by generating optical breakthroughs in an object. The apparatus includes a variable focus adjustment device. A contact element is mounted to the apparatus, the contact element has a curved contact surface having a previously known shape. The position of the contact surface is determined prior to processing the object, by focusing measurement laser radiation near or on the surface by the variable focus adjustment device, and the focus position is adjusted in a measurement surface intersecting the expected position of the contact surface. Radiation from the focus of the measurement laser radiation is confocally detected. The position of points of intersection between the measurement surface and the contact surface is determined from the confocally detected radiation to determine the position of the contact surface from the position of the points of intersection and the previously known shape of the contact surface. 1. A method of preparing an apparatus for material processing by producing optical breakthroughs in or on an object , said apparatus comprising a variable three-dimensionally acting focus adjustment device for focusing pulsed processing laser radiation on different locations in or on the object , whereina contact element, which is transparent for the processing laser radiation and is to be placed on the object, is mounted to the apparatus, said contact element having, on its side to be placed on the object, a contact surface and, located opposite, an entry surface for the processing laser radiation, the contact surface having a known shape;prior to processing the object, the position of the contact surface with respect to the focus adjustment device is determined by irradiation of laser radiation on the contact surface, by focusing measurement laser radiation near or on the contact surface by the variable focus adjustment device, an energy density of the focused measurement laser radiation being too ...

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16-01-2014 дата публикации

Method and apparatus for marking an article

Номер: US20140015170A1
Принадлежит: Electro Scientific Industries Inc

Numerous embodiments of methods and apparatus for marking articles are disclosed. In one embodiment, a method of marking an article includes providing an article having a preliminary visual appearance; modifying a region of the article; and directing a plurality of optical pulses into the modified region of the article. The plurality of optical pulses can be configured to produce a visible mark on the article. Generally, the mark can be characterized as having a modified visual appearance different from the preliminary visual appearance.

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30-01-2014 дата публикации

Method of Determining a Focal Point or Beam Profile of a Laser Beam in a Working Field

Номер: US20140027421A1
Автор: Notheis Thomas
Принадлежит: TRUMPF Laser GmbH + KG

In a method for determining the focal point or the beam profile of a laser beam, which can be deflected in the x and y directions by a scanner optic or an x-y-movement unit and can be displaced in the z direction by a focusing optic or a z-movement unit, at a plurality of measurement points in the two-dimensional working field or three-dimensional working space of the laser beam. An aperture diaphragm, followed by a detector, is arranged at each measurement point. At each measurement point, for x-y-focal point or beam profile measurements, the laser beam is moved by the scanner optic or the x-y-movement unit in an x-y-grid over the measurement aperture in the aperture diaphragm, and, at each grid point, the laser power is measured by the detector, the scanner axis of the scanner optic or the x-y-movement unit being stationary. For z-focal point measurements, the laser beam is displaced by the focusing optic or the z-movement unit in the z direction within the measurement aperture in the aperture diaphragm. The laser power is measured by the detector at each grid point. The focal point and/or the beam profile of the laser beam is then determined at each measurement point from the measurement values. 1. A method of determining a property of a laser beam , wherein the property comprises at least one of an x-y-focal point or a beam profile , the method comprising:moving the laser beam to each of a plurality of measurement points in a working area;at each measurement point, adjusting a position of the laser beam to each of a plurality of grid points of an x-y-grid across a measurement aperture defined in an aperture diaphragm;detecting, with the laser beam positioned at each grid point, a power value of the laser beam using a detector arranged behind the aperture diaphragm; anddetermining, at each measurement point, the property of the laser beam from the detected power values.2. The method of claim 1 , wherein moving the laser beam comprises deflecting the laser beam in ...

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13-02-2014 дата публикации

Apparatus for focusing a laser beam and method for monitoring a laser processing operation

Номер: US20140042133A1
Автор: Weick Juergen-Michael
Принадлежит: TRUMPF WERKZEUGMASCHINEN GMBH + CO. KG

An apparatus for focusing a laser beam on a workpiece includes at least one transmissive optical element which is arranged at a tilting angle with respect to a plane perpendicular to a beam axis of the laser beam, the transmissive optical element comprising a first side and a second side through which the laser beam passes, a spatially-resolving detector configured to detect laser radiation reflected from the transmissive optical element, and an image evaluation device coupled to the detector, the image evaluation device configured to distinguish laser radiation reflected from the first side of the optical element from laser radiation reflected from the second side of the optical element. 114-. (canceled)15. An apparatus for focusing a laser beam on a workpiece , comprising:at least one transmissive optical element which is arranged at a tilting angle with respect to a plane perpendicular to a beam axis of the laser beam, the transmissive optical element comprising a first side and a second side through which the laser beam passes,a spatially-resolving detector configured to detect laser radiation reflected from the transmissive optical element, andan image evaluation device coupled to the detector, the image evaluation device configured to distinguish laser radiation reflected from the first side of the optical element from laser radiation reflected from the second side of the optical element.16. The apparatus of claim 15 , wherein the apparatus comprises an aperture for suppressing the laser radiation reflected from one of the sides.17. The apparatus of claim 15 , wherein both the first and the second side of the transmissive optical element comprise an anti-reflective coating.18. The apparatus of claim 15 , wherein the transmissive optical element is a planar plate.19. The apparatus of claim 15 , wherein the spatially-resolving detector is arranged at the tilting angle with respect to the plane perpendicular to the beam axis.20. The apparatus of claim 15 , ...

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13-02-2014 дата публикации

Analyte sensor

Номер: US20140046149A1
Принадлежит: Dexcom Inc

Devices and methods are provided for continuous measurement of an analyte concentration. The device can include a sensor having a plurality of sensor elements, each having at least one characteristic that is different from other sensor(s) of the device. In some embodiments, the plurality of sensor elements are each tuned to measure a different range of analyte concentration, thereby providing the device with the capability of achieving a substantially consistent level of measurement accuracy across a physiologically relevant range. In other embodiments, the device includes a plurality of sensor elements each tuned to measure during different time periods after insertion or implantation, thereby providing the sensor with the capability to continuously and accurately measure analyte concentrations across a wide range of time periods. For example, a sensor system 180 is provided having a first working electrode 150 comprising a first sensor element 102 and a second working electrode 160 comprising a second sensor element 104 , and a reference electrode 108 for providing a reference value for measuring the working electrode potential of the sensor elements 102, 104.

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27-02-2014 дата публикации

Method and device for producing electrode windings

Номер: US20140053383A1

A method produces electrode windings, in which method a strip- or ribbon-like anode and a strip- or ribbon-like cathode are provided and flat collector lugs are formed on at least one longitudinal side of the anode and of the cathode at varying distances and/or contours are cut into the longitudinal sides of the electrodes. The anode and the cathode are wound up together with a strip- or ribbon-like separator to form a winding with the sequence anode/separator/cathode. The method is distinguished, in particular, in that the process of forming collector lugs and/or of cutting contours and the process of winding up overlap with respect to time.

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20-03-2014 дата публикации

Laser welding method

Номер: US20140076865A1
Автор: Hiroyuki Sumi, Koji Yano
Принадлежит: JFE Steel Corp

A laser welding method includes emitting two laser beams along a weld line from an upper surface side of a workpiece, the two laser beams being transmitted through different optical fibers and having in-focus spot diameters of 0.3 mm or larger; emitting the laser beams such that a leading laser beam of the two laser beams and a trailing laser beam of the two laser beams are each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the workpiece, the leading laser beam being ahead of the trailing laser beam on the upper surface of the workpiece in the direction in which welding proceeds, the trailing laser beam being behind the leading laser beam; and setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam.

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20-03-2014 дата публикации

Substrate markings

Номер: US20140076976A1
Принадлежит: Individual

Apparatus, systems, and methods are provided to generate markings on the side of a substrate. The markings represent information. In an embodiment, the information provided in the markings may be used to collect information during an assembly process.

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10-04-2014 дата публикации

LASER PROCESSING APPARATUS

Номер: US20140097162A1
Принадлежит: Samsung Display Co., Ltd.

A laser processing apparatus using a laser. The laser processing apparatus includes a light source for generating a hollow laser beam in a first direction; a reflection member for changing a path of the hollow laser beam toward the first direction into a second direction toward the substrate; a lens for collecting the hollow laser beam reflected by the reflection member; and an air supply unit for supplying air toward particles generated while the substrate is processed by the hollow laser beam, wherein the lens has a first hole passing through the lens, the reflection member has a second hole passing through the reflection member, and the first and second holes form a discharge path of the particles. 1. A laser processing apparatus using a laser , the laser processing apparatus comprising:a light source for generating a hollow laser beam in a first direction;a reflection member for changing a path of the hollow laser beam toward the first direction into a second direction toward a substrate;a lens for focusing the hollow laser beam reflected by the reflection member; andan air supply unit for supplying air toward particles generated while the substrate is processed by the hollow laser beam,wherein the lens has a first hole passing through the lens, the reflection member has a second hole passing through the reflection member, and the first and second holes form a discharge path of the particles.2. The laser processing apparatus of claim 1 , wherein the first and second holes are aligned on the same axial line.3. The laser processing apparatus of claim 1 , wherein a size of the first hole is different from that of the second hole.4. The laser processing apparatus of claim 1 , wherein the size of the second hole is smaller than that of the first hole.5. The laser processing apparatus of claim 1 , wherein the first hole comprises a first groove formed in a first spiral direction along an inner circumferential surface of the first hole claim 1 , and the second hole ...

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10-04-2014 дата публикации

Laser processing method and device

Номер: US20140097163A1
Принадлежит: Hamamatsu Photonics KK

A laser processing method which can efficiently perform laser processing while minimizing the deviation of the converging point of a laser beam in end parts of an object to be processed is provided. This laser processing method comprises a preparatory step of holding a lens at an initial position set such that a converging point is located at a predetermined position within the object; a first processing step (S 11 and S 12 ) of emitting a first laser beam for processing while holding the lens at the initial position, and moving the lens and the object relative to each other along a main surface so as to form a modified region in one end part of a line to cut; and a second processing step (S 13 and S 14 ) of releasing the lens from being held at the initial position after forming the modified region in the one end part of the line to cut, and then moving the lens and the object relative to each other along the main surface while adjusting the gap between the lens and the main surface after the release, so as to form the modified region.

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06-01-2022 дата публикации

WIRE ARC ADDITIVE MANUFACTURING METHOD FOR HIGH-STRENGTH ALUMINUM ALLOY COMPONENT, EQUIPMENT AND PRODUCT

Номер: US20220001476A1
Принадлежит:

The disclosure relates to the field of wire arc additive manufacturing, and specifically discloses a wire arc additive manufacturing method for a high-strength aluminum alloy component, equipment and a product. A high-strength aluminum alloy is modified by using a MXene nanomaterial, and wire arc additive manufacturing is performed by using the modified high-strength aluminum alloy as a raw material, and a nanosecond laser beam is applied during the wire arc additive manufacturing to achieve an enhanced arc cathode atomization cleanup function to remove impurities, thus obtaining a high-strength aluminum alloy component without defects. The disclosure can solve the problem of very difficult forming in wire arc additive manufacturing of a high-strength aluminum alloy, and also solve the problems of many pores, liability to crack and lots of impurities during additive manufacturing of the high-strength aluminum alloy, so that a high-strength aluminum alloy component without defects can be produced. 1. A wire arc additive manufacturing method for a high-strength aluminum alloy component , comprising:modifying a high-strength aluminum alloy by using a MXene nanomaterial;using the modified high-strength aluminum alloy as raw material for wire arc additive manufacturing;applying a nanosecond laser beam when manufacturing to achieve an enhanced arc cathode atomization cleanup function to remove impurities, andobtaining a high-strength aluminum alloy component without defects.2. The wire arc additive manufacturing method for a high-strength aluminum alloy component according to claim 1 , further comprising:S1: mixing the high-strength aluminum alloy with the MXene nanomaterial to obtain a MXene-modified high-strength aluminum alloy filler wire;S2: conveying the MXene-modified high-strength aluminum alloy filler wire to a specified position and performing arc starting to form a molten pool, and at the same time providing a nanosecond pulse laser beam for scanning movement to ...

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01-01-2015 дата публикации

LASER PROCESSING SYSTEMS AND METHODS FOR BEAM DITHERING AND SKIVING

Номер: US20150001194A1
Принадлежит:

A laser processing system includes a first positioning system for imparting first relative movement of a beam path along a beam trajectory with respect to a workpiece, a processor for determining a second relative movement of the beam path along a plurality of dither rows, a second positioning system for imparting the second relative movement, and a laser source for emitting laser beam pulses. The system may compensate for changes in processing velocity to maintain dither rows at a predetermined angle. For example, the dither rows may remain perpendicular to the beam trajectory regardless of processing velocity. The processing velocity may be adjusted to process for an integral number of dither rows to complete a trench. A number of dither points in each row may be selected based on a width of the trench. Fluence may be normalized by adjusting for changes to processing velocity and trench width. 18-. (canceled)9. A laser processing system comprising:a first positioning system for imparting first relative movement of a laser beam path along a beam trajectory with respect to a surface of the workpiece;one or more processors for determining a second relative movement of the laser beam path along a plurality of dither rows, the second relative movement superimposed on the first relative movement at a predetermined angle with respect to the beam trajectory, the determination of the second relative movement including compensation for changes in a processing velocity along the beam trajectory so as to maintain the predetermined angle for each of the plurality of dither rows;a second positioning system for imparting the second relative movement of the laser beam path; anda laser source for emitting a plurality of laser beam pulses to the workpiece at a plurality of spot locations along the plurality of dither rows to widen a trench in a direction defined by the predetermined angle.10. The system of claim 9 , wherein the predetermined angle is substantially perpendicular to ...

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01-01-2015 дата публикации

LASER PROCESSING MACHINE

Номер: US20150001195A1
Автор: Okada Takuya
Принадлежит: MURATA MACHINERY, LTD.

An optical system head of the laser processing machine includes a focusing optical system configured to deflect and condense an incident laser beam so that a target object to be processed is irradiated and a deflecting direction adjusting unit configured to adjust the direction of deflection of the laser beams about at least two axes perpendicular or substantially perpendicular to each other. A nozzle holding head of the laser processing machine includes a cutting nozzle configured to blow a cutting gas at a site of the target object, at which the laser beam is irradiated, and a nozzle position adjusting unit configured to adjust the position of the cutting nozzle in a top plane parallel or substantially parallel to the target object. The optical system head and the nozzle holding head are separately supported by an optical system nozzle support member configured to selectively advance or retract in three axis directions relative to the target object. 14-. (canceled)5. A laser processing machine comprising:an optical system head including a focusing optical system configured to irradiate a target object to be processed by deflecting and condensing a laser beam incident thereupon, and a deflecting direction adjusting unit configured to adjust a direction of deflection of the laser beam from the focusing optical system about at least two axes perpendicular or substantially perpendicular to each other;a nozzle holding head including a cutting nozzle configured to blow a cutting gas to a site of the target object to be processed which is irradiated by the laser beam, and a nozzle position adjusting unit configured to adjust a position of the cutting nozzle in a top plan parallel or substantially parallel to the target object to be processed in synchronism with an operation of the deflecting direction adjusting unit; andan optical system nozzle support member configured to be selectively advanced or retracted relative to the target object in three axis directions ...

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07-01-2021 дата публикации

Light Recycling For Additive Manufacturing Optimization

Номер: US20210001404A1
Принадлежит:

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 ...

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07-01-2021 дата публикации

THIN-FILM DEVICES AND FABRICATION

Номер: US20210001426A1
Принадлежит: VIEW, INC.

Thin-film devices, for example electrochromic devices for windows, and methods of manufacturing are described. Particular focus is given to methods of patterning optical devices. Various edge deletion and isolation scribes are performed, for example, to ensure the optical device has appropriate isolation from any edge defects. Methods described herein apply to any thin-film device having one or more material layers sandwiched between two thin film electrical conductor layers. The described methods create novel optical device configurations. 122-. (canceled)23. A method of fabricating an optical device , the method comprising , in the following order:depositing a lower transparent conductor layer on a substantially transparent substrate;depositing a defect mitigation insulating (DMIL) layer on the lower transparent conductor layer;removing material down to the DMIL and a predefined depth of material from the lower transparent conductor layer in regions at predefined locations in a bus bar expose area along a side of the substantially transparent substrate;depositing an electrochromic device stack over the substantially transparent substrate; andremoving the electrochromic device stack at the predefined locations to expose the lower transparent conductor layer.24. The method of fabricating the optical device of claim 23 , wherein removing the electrochromic device stack at the predefined locations forms spaced punch through areas penetrating into the lower transparent conductor layer; and further comprising filling the spaced punch through areas with a material to form a bus bar.25. The method of fabricating the optical device of claim 24 ,wherein the spaced punch through areas form a plurality of separated scribe lines along the side of the substantially transparent substrate; andwherein the electrochromic device stack is at least partially intact between the separated scribe lines.26. The method of fabricating the optical device of claim 23 , wherein the bus bar ...

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07-01-2016 дата публикации

LASER SYSTEM AND METHOD FOR PROCESSING SAPPHIRE

Номер: US20160001398A1
Принадлежит:

Laser processing of sapphire is performed using a continuous wave laser operating in a quasi-continuous wave (QCW) mode to emit consecutive laser light pulses in a wavelength range of about 1060 nm to 1070 nm (hereinafter “QCW laser”). Laser processing of sapphire using a QCW laser may be performed with a lower duty cycle (e.g., between about 1% and 10%) and in an inert gas atmosphere such as argon or helium. Laser processing of sapphire using a QCW laser may further include the use of an assist laser having a shorter wavelength and/or pulse duration to modify a property of the sapphire substrate to form absorption centers, which facilitate coupling of the laser light pulses of the QCW laser into the sapphire. 1. A method for laser processing a sapphire substrate , the method comprising:periodically switching on a power source to pulse a continuous wave laser, thereby operating the laser in a quasi-continuous wave (“QCW”) mode so as to emit consecutive pulses of laser light at a wavelength ranging between about 1060 nm and about 1070 nm;focusing the pulses of laser light at the sapphire substrate; andlaser processing the sapphire substrate with the pulses of laser light.2. The method of further comprising supplying inert gas in a vicinity of the sapphire substrate.3. The method of claim 2 , wherein the inert gas is selected from the group consisting of argon and helium.4. The method of claim 1 , wherein laser processing the sapphire substrate is selected from the group consisting of cutting claim 1 , scribing claim 1 , and drilling.5. The method of claim 1 , wherein laser processing includes cutting with a speed between about 10 and 40 inches per minute claim 1 , and wherein the sapphire substrate has a thickness between about 0.1 and about 1 mm.6. The method of claim 1 , wherein the laser is an ytterbium fiber laser.7. The method of claim 1 , wherein the laser is operated with a duty cycle ranging between about 1% and about 10%.8. The method of claim 1 , wherein ...

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07-01-2016 дата публикации

System for marking a cable with a curved marking area

Номер: US20160001399A1
Принадлежит: Laselec SA

A cable marking system includes: —at least one marking area for marking a portion of cable via at least one laser device; —at least one laser device; —and at least one cable-driving device designed to pass the cable through the at least one marking area.

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07-01-2016 дата публикации

SELECTIVE LASER SOLIDIFICATION APPARATUS AND METHOD

Номер: US20160001401A1
Принадлежит:

Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described. 1. Selective laser solidification apparatus , comprising;a powder bed onto which a powder layer can be deposited,a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction, anda laser scanning unit for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern, the required pattern being formed from a plurality of stripes or stripe segments, each stripe or stripe segment being formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction,wherein the stripe formation direction is always at least partially opposed to the predefined gas flow direction.2. An apparatus according to claim 1 , wherein the stripe formation direction subtends an angle (α) of more than 30° to the normal to the gas flow direction.3. An apparatus according to claim 1 , wherein the flow of gas over the powder bed originates from a first side of the powder bed and the plurality of stripes are formed in reverse order of their proximity to the first side of the powder bed.4. An apparatus according to claim 1 , wherein the gas flow unit comprises at least one gas outlet and at least one gas exhaust claim 1 , the ...

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05-01-2017 дата публикации

MACHINE TOOL, MEASUREMENT APPARATUS, METHOD FOR GENERATING WORKING DATA, CLADDING METHOD, METHOD FOR SETTING TEMPERATURE OF A WORKPIECE

Номер: US20170001258A1
Принадлежит: SAUER GMBH LASERTEC

The invention relates to a machine tool () comprising a machine controller (), a machine frame (), a work table (), a tool holder (), preferably of a standardized design, multiple translational and/or rotational axes () for adjusting the relative position of the work table () and the work holder (), a tool magazine () for one or more material-removing, in particular machining tools (), a tool-change mechanism for automatically transporting tools between the tool holder () and the tool magazine (), a deposit-welding head () that can be inserted into the tool holder () and a storage device () for storing the deposit-welding head outside the tool holder (). 110. A machine tool () , comprising:{'b': '19', 'a machine controller (),'}{'b': '11', 'a machine frame (),'}{'b': '13', 'a workpiece table (),'}{'b': '14', 'a workpiece holder () preferably formed in accordance with a standard,'}{'b': 12', '12', '13', '14, 'i': a', 'b, 'plural translatory and/or rotatory axes (, ) for adjusting a relative position between workpiece table () and tool holder (),'}{'b': 16', '15, 'a tool magazine () for one or plural material removing tools, particularly chipping tools (),'}{'b': 14', '16', '17', '15', '14', '16, 'a first tool changing mechanism for automatically transporting tools between the tool holder () and the tool magazine (), which may comprise an automatically operating arm () for transporting the tool () between the tool holder () and the tool magazine (),'}{'b': 20', '14, 'a cladding welding head () insertable into the tool holder (), and'}{'b': 25', '14', '25', '20', '14', '25, 'a storage apparatus () for storing the cladding welding head apart from the tool holder (), wherein the storage apparatus () may be provided apart from the tool magazine, and wherein the cladding welding head () is automatically transportable from the tool holder () towards the storage apparatus (), and vice versa.'}22529201420. A machine tool in accordance with claim 1 , wherein the storage ...

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07-01-2016 дата публикации

SYSTEMS AND METHODS FOR WELDING

Номер: US20160001427A1
Принадлежит:

A welding fixture including an electromagnet, a non-magnetic support configured to receive at least two sheets of material to be welded, and one or more clamping shoes configured to cooperate with the electromagnet to apply a clamping pressure to the at least two sheets of material and the non-magnetic support as a result of a magnetic force produced by the electromagnet is provided. A first of the at least two sheets of material is in contact with at least one of the one or more clamping shoes, and a second of the at least two sheets of material is in contact with at least the non-magnetic support. The one or more clamping shoes being shaped such that a perimeter defined by the one or more clamping shoes is located in the vicinity of a defined weld line to be welded on the at least two sheets of material, the weld line remaining substantially free from optical obstruction during production of the magnetic force. 1. A welding fixture , comprising:an electromagnet;a non-magnetic support configured to receive at least two sheets of material to be welded; andone or more clamping shoes configured to cooperate with the electromagnet to apply a clamping pressure to the at least two sheets of material and the non-magnetic support as a result of a magnetic force produced by the electromagnet;wherein a first of the at least two sheets of material is in contact with at least one of the one or more clamping shoes, and wherein a second of the at least two sheets of material is in contact with at least the non-magnetic support, the one or more clamping shoes being shaped such that a perimeter defined by the one or more clamping shoes is located in the vicinity of a defined weld line to be welded on the at least two sheets of material, the weld line remaining substantially free from optical obstruction during production of the magnetic force.2. The welding fixture of claim 1 , further comprising a laser welding device or an electron beam welding device.3. The welding fixture of ...

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02-01-2020 дата публикации

Assembly and welding unit for longitudinally welded pipes

Номер: US20200001338A1

A longitudinal welded pipe assembly and welding mill contains a trestle, on which a welding bridge configured to move is mounted, such bridge carrying welding equipment with the first welding head designed for welding on the outside of the pipe blank. A pipe blank rotation system and assembly mandrels, each containing a blank pipe longitudinal edge clamping mechanism, are installed in the trestle leg span. The mill is fitted with a cantilever crossbar mounted in the supporting assembly, with the second welding head designed for inside welding, the clamping mechanism made as hydraulic stops. The pipe blank rotation system is a welding trolley configured to move over guides and having rotary rollers designed for positioning a pipe blank in the welding position, and supporting rotary rollers located near the assembly mandrels and configured to diverge crosswise with respect to the guides to enable movement of the welding trolley into the assembly mandrel area and move in reverse up to the stop to the pipe blank surface. Technical result: expansion of the technological capabilities of existing mills by integrating equipment enabling to weld from inside and outside of the pipe blank in various sequence using various technologies and observing the geometrical accuracy of bringing together the blank edges for pipes of various diameter, in particular, for large diameter pipes.

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02-01-2020 дата публикации

HANDHELD PULSED LASER DEVICE FOR CLEANING OR TREATING A SURFACE

Номер: US20200001393A1
Принадлежит:

The present invention relates to a handheld pulsed laser device for cleaning or treating a surface, comprising a laser source, a focal distance adjuster and a beam deflector. The laser source is configured to emit a pulsed laser beam and the focal distance adjuster, is configured to change a focal distance of the beam. The beam deflector may comprise at least one movable mirror onto which the beam is deflected, wherein the deflector is configured to deflect the beam to scan the beam along the surface. 1. A handheld pulsed laser device for cleaning or treating a surface , comprising:a laser source, configured to emit a pulsed laser beam;a focal distance adjuster, configured to change a focal distance of the beam, and;a beam deflector, configured to deflect the beam to scan the beam along the surface;at least one sensor, configured to provide a sensor signal, representative for of a parameter that is related to a characteristic of the surface; anda control unit, configured to control the beam deflector to scan the beam along the surface in an, at least, two-dimensional pattern, based on the sensor signal.2. The pulsed laser device according to claim 1 , wherein the pattern of the beam comprises an outer contour and wherein the outer contour is filled-up by the beam with a back-and-forth scanning movement within the outer contour.3. The pulsed laser device according to claim 2 , wherein the back-and-forth scanning movement is superpositioned with a sinusoidal pattern.4. The pulsed laser device according to claim 2 , wherein the back-and-forth scanning movement is superpositioned with a spiral pattern.5. The pulsed laser device according to claim 1 , wherein the beam deflector comprises at least one mirror claim 1 , which is tiltable around at least one perpendicular axis.6. The pulsed laser device according to claim 1 , wherein the focal distance adjuster comprises a movable lens element and a piezo-element claim 1 , which is configured move the movable lens element to ...

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02-01-2020 дата публикации

LASER PROCESSING SYSTEM

Номер: US20200001394A1
Принадлежит: FANUC Corporation

There is provided a laser processing system including: a robot; a laser emission section provided on the robot; an irradiation path calculation section configured to calculate an irradiation path of a laser beam emitted from the laser emission section using information on a position of the robot; a determination section configured to determine whether the irradiation path calculated passes through an allowable irradiation region that is predetermined; and a laser-output reduction section configured to reduce output of the laser beam to be emitted to the irradiation path to a second output lower than a first output for processing in accordance with a determination by the determination section that the irradiation path does not pass through the allowable irradiation region. 1. A laser processing system comprising:a robot;a laser emission section provided on the robot;an irradiation path calculation section configured to calculate an irradiation path of a laser beam emitted from the laser emission section using information on a position of the robot;a determination section configured to determine whether the irradiation path calculated passes through an allowable irradiation region that is predetermined; anda laser-output reduction section configured to reduce output of the laser beam to be emitted to the irradiation path to a second output lower than a first output for processing in accordance with a determination by the determination section that the irradiation path does not pass through the allowable irradiation region.2. The laser processing system according to claim 1 , whereinthe laser emission section includes a scanner configured to perform scan operation, andthe irradiation path calculation section calculates the irradiation path further using information on a position of the scan operation of the scanner.3. The laser processing system according to claim 2 , whereinthe scanner includes a mirror configured to perform the scan operation and a motor configured ...

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02-01-2020 дата публикации

CALIBRATION TEST PIECE FOR GALVANOMETRIC LASER CALIBRATION

Номер: US20200001396A1
Принадлежит: nLIGHT, Inc.

Some embodiments may include a galvanometric laser system, comprising: a laser device to generate a laser beam; an X-Y scan head module to position the laser beam on a work piece, the X-Y scan head module including a laser ingress to receive the laser beam and a laser egress to output the laser beam; a support platen located below the laser egress; an in-machine imaging system integrated with the galvanometric laser, wherein a camera of the in-machine imaging system is arranged to view a surface of an object located on the support platen using one or more optical components of the X-Y scan head module to generate assessment data associated with a calibration of the X-Y scan head module by imaging the surface of the object, wherein a calibration fiducial is located on the surface of the object. 1. A galvanometric laser system , comprising:a laser device to generate a laser beam;an X-Y scan head module to position the laser beam on a work piece, the X-Y scan head module including a laser ingress to receive the laser beam and a laser egress to output the laser beam;a support platen located below the laser egress and arranged to receive a work piece;an in-machine imaging system integrated with the galvanometric laser, wherein a camera of the in-machine imaging system is arranged to use one or more optical components of the X-Y scan head module to view an object located on the support platen; anda calibration test piece to place on the support platen during a calibration routine prior to positioning the laser beam on the work piece, the calibration test piece with a planar surface including a calibration fiducial usable by the camera to generate calibration data associated with a calibration of the X-Y scan head module.2. The galvanometric laser system of claim 1 , further comprising a selective optic located between the laser ingress and the laser device claim 1 , the selective optic being optically transmissive to the laser beam and optically non-transmissive to light ...

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02-01-2020 дата публикации

LASER PROCESSING APPARATUS

Номер: US20200001397A1
Принадлежит: Advanced Technology Inc.

Disclosed herein is a laser processing apparatus that includes a laser generation unit configured to generate a laser beam to process a workpiece, a first fluid jet generation unit configured to generate and inject a first fluid jet to deliver the laser beam to the workpiece, and a second fluid jet generation unit configured to inject a second fluid jet around the laser beam, wherein the first and second fluid jets are simultaneously or selectively injected. 1. A laser processing apparatus , comprising:a laser generation unit configured to generate a laser beam to process a workpiece;a first fluid jet generation unit configured to generate and inject a first fluid jet into a first fluid to deliver the laser to the workpiece;a second fluid jet generation unit configured to inject a second fluid jet to a second fluid around the laser beam; andan assist injection unit configured to inject an assist fluid to the workpiece,wherein the first fluid of the first fluid jet and the assist fluid of the assist injection unit are supplied by the same pump, respectively, as the same fluid.2. The laser processing apparatus according to claim 1 , wherein the first fluid jet is a liquid claim 1 , and the second fluid jet is a gas.3. The laser processing apparatus according to claim 1 , wherein one of the first and second fluid jets is water claim 1 , and the other is a liquid containing water.4. The laser processing apparatus according to claim 1 , wherein the first fluid jet generation unit comprises:a first fluid chamber configured to accommodate a first fluid for generating the first fluid jet;a water supply section configured to supply the first fluid to the first fluid chamber; anda nozzle configured to inject the first fluid in the first fluid chamber to the workpiece.5. The laser processing apparatus according to claim 1 , wherein the second fluid jet generation unit comprises:a second fluid chamber configured to accommodate a second fluid;a second fluid supply section ...

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02-01-2020 дата публикации

FINE-SCALE TEMPORAL CONTROL FOR LASER MATERIAL PROCESSING

Номер: US20200001400A1
Принадлежит: nLIGHT, Inc.

Methods include directing a laser beam to a target along a scan path at a variable scan velocity and adjusting a digital modulation during movement of the laser beam along the scan path and in relation to the variable scan velocity so as to provide a fluence at the target within a predetermined fluence range along the scan path. Some methods include adjusting a width of the laser beam with a zoom beam expander. Apparatus include a laser source situated to emit a laser beam, a 3D scanner situated to receive the laser beam and to direct the laser beam along a scan path in a scanning plane at the target, and a laser source digital modulator coupled to the laser source so as to produce a fluence at the scanning plane along the scan path that is in a predetermined fluence range as the laser beam scan speed changes along the scan path. 1. An apparatus , comprising:a continuous-wave laser source situated to emit a laser beam;a 3D scanner situated to receive the laser beam and to direct the laser beam along a scan path in a scanning plane at a target; anda laser source digital modulator coupled to the continuous-wave laser source and configured to adjust a digital modulation of the laser beam between a first digital modulation power level and a second digital modulation power level during movement of the laser beam along the scan path and in relation to a variable scan velocity to provide a fluence at the scanning plane along the scan path that is in a predetermined fluence range along the scan path.2. The apparatus of claim 1 , further comprising a zoom beam expander situated to receive the laser beam from the continuous-wave laser source and to change a width of the laser beam received by the 3D scanner to change a size of a focused laser spot of the laser beam in the scanning plane.3. The apparatus of claim 1 , wherein the laser source digital modulator is configured to digitally modulate the laser beam between two or more power levels based on a digital modulation ...

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04-01-2018 дата публикации

Laser wire processing device

Номер: US20180001418A1
Принадлежит: Boeing Co

A wire guide and a laser wire-processing device that includes a wire guide are provided. The laser wire-processing device includes a housing and an aperture in a side of the housing, wherein the aperture defines a longitudinal axis that is substantially perpendicular to the aperture. The laser wire-processing device also includes a backstop arranged in the housing and aligned with the longitudinal axis, the backstop defining a wire-contact surface in a facing relationship with the aperture. The laser wire-processing device also includes a wire guide arranged in the housing to manipulate a wire inserted through the aperture into a desired position relative to the longitudinal axis between the aperture and the backstop. The laser wire-processing device also includes a laser operable to direct a laser beam toward an insulation layer of the wire. The wire guide could be a tube arranged in the device or a backstop guide.

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04-01-2018 дата публикации

Machine for Separative Machining of Plate-Shaped Work Pieces

Номер: US20180001421A1
Автор: Ottnad Jens
Принадлежит:

The invention relates to machines and methods for the separative machining of a plate-shaped workpieces. The machine includes a first movement device for moving the workpiece in a first direction (X), a second movement device for moving a machining head, which directs the machining beam onto the workpiece, along a second direction (Y), Between workpiece bearing faces there is formed a gap for the passage of the machining beam. In the machine, mutually facing side edges of at least two of the workpiece bearing faces are oriented non-perpendicularly and non-parallel with respect to the first direction (X). 1. A machine for the separative machining of a plate-shaped workpiece by a processing beam , the machine comprising:a machining head configured to direct the processing beam onto the plate-shaped workpiece;a first movement device configured to bidirectionally move the plate-shaped workpiece in a first direction (X);a second movement device configured to bidirectionally move the machining head in a second direction (Y); andat least two workpiece support units including at least two workpiece bearing faces for supporting the workpiece, a gap configured for the passage of the processing beam being formed between the workpiece bearing faces,wherein mutually facing side edges of at least two of the workpiece bearing faces are oriented non-perpendicularly and non-parallel with respect to the first direction (X).245. The machine of claim 1 , wherein the mutually facing side edges that are oriented non-perpendicularly and non-parallel with respect to the first direction (X) claim 1 , are formed on two stationary workpiece bearing faces ( claim 1 , ).3. The machine of claim 2 , wherein the side edges of the two stationary workpiece bearing faces are oriented at an angle (α) with respect to the second direction (Y).4. The machine of claim 1 , further comprising a drive unit configured to displace the machining head in the first direction (X).5. The machine of claim 1 , ...

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02-01-2020 дата публикации

LASER CUTTING METHOD AND MACHINE, AND AUTOMATIC PROGRAMING APPARATUS

Номер: US20200001401A1
Принадлежит: AMADA HOLDINGS CO., LTD.

According to a laser cutting method, a processed part is laser-cut so that the processed part doesn't drop off from a sheet-shaped workpiece. In the laser cutting method, a cut slit of a pressing protrusion, which is curved due to a laser cutting process along an outline of the processed part and then presses a peripheral surface of the processed part, is preliminarily formed around the processed part to be cut out from the workpiece. Then, the laser cutting process is carried out along the outline of the processed part. The pressing protrusion curves toward the processed part due to the laser cutting process of the processed part, and then the processed part is retained by the pressing protrusion. 1. A laser cutting method for cutting out a processed part from a sheet-shaped workpiece , the method comprising:(a) preliminarily laser-cutting a cut slit of a pressing protrusion around the processed part to be cut out from the workpiece, the pressing protrusion being curved due to a laser cutting process along an outline of the processed part and then pressing a peripheral surface of the processed part; and(b) carrying out the laser cutting process along the outline of the processed part.2. The laser cutting method according to claim 1 , further comprising claim 1 ,in a case of forming a hole inside the processed part, preliminarily laser-cutting the cut slit of the pressing protrusion around a scrap within the hole, the pressing protrusion being curved due to a laser cutting process along an outline of the hole and then pressing an inner peripheral surface of the hole.3. The laser cutting method according to claim 2 , whereinthe processed part is laser-cut after laser-cutting the scrap within the hole.4. The laser cutting method according to claim 1 , whereinthe pressing protrusion is formed longwise along the outline of the processed part and includes a free end that presses the peripheral surface of the processed part.5. The laser cutting method according to claim 4 ...

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07-01-2016 дата публикации

Method for decorating parts and decorated parts

Номер: US20160001587A1
Автор: Tokinobu SHIMADA
Принадлежит: Trinity Industrial Corp

A method for decorating a given part is designed to print designs onto a coat layer deteriorating the coat layer on the surface of the given part. In the coat layer-forming process, in spreading the metallic-coating material containing aluminum flake onto the surface of the resin compact, the coat layer is formed on the surface of it. In a laser-printing process, a laser is irradiated on the condition of being able to maintain the same state of the coat layer before and after irradiating the laser, so as to reduce the aspect ratio of the micronized-metallic powder, which is the average value of the ratio of the maximum dimension of the micronized-metallic powder to the average value of the minimum dimension of the micronized-metallic powder, which laser irradiation eventually thermally deforms the first scale-shaped micronized-metallic powder into a spherical shape in the coat layer to print designs on the film.

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03-01-2019 дата публикации

LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD

Номер: US20190001433A1
Автор: Yamamoto Setsuo
Принадлежит:

A laser processing apparatus includes: a chuck table for holding a single-crystal SiC ingot on a holding surface thereof; a laser beam applying unit for applying a laser beam to the single-crystal SiC ingot held on the holding surface of the chuck table; and a camera unit configured to capture an image of the single-crystal SiC ingot held on the holding surface of the chuck table. The chuck table includes a porous material making up the holding surface and a glass frame made of a non-porous material and having a recess defined therein and receiving the porous material fitted therein, and a negative pressure transfer path for transferring a negative pressure to the porous material fitted in the recess. 1. A laser processing apparatus comprising:a chuck table for holding a workpiece on a holding surface thereof;a laser beam applying unit configured to apply a laser beam to the workpiece held on the holding surface of said chuck table; anda camera unit configured to capture an image of the workpiece held on the holding surface of said chuck table;wherein said chuck table includes:a porous material making up said holding surface; anda glass frame made of a non-porous material and having a recess defined therein for receiving said porous material fitted therein, and a negative pressure transfer path for transferring a negative pressure to the porous material fitted in said recess.2. The laser processing apparatus according to claim 1 , wherein said porous material is provided as a porous glass plate.3. The laser processing apparatus according to claim 2 , further comprising:a table base movable with respect to said laser beam applying unit, said glass frame being mounted on said table base.4. The laser processing apparatus according to claim 2 , wherein said laser beam applying unit includes a laser oscillator for oscillating said laser beam and a condensing lens for focusing the laser beam oscillated by said laser oscillator claim 2 , said condensing lens being disposed ...

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03-01-2019 дата публикации

LOCATION OF IMAGE PLANE IN A LASER PROCESSING SYSTEM

Номер: US20190001434A1
Принадлежит:

Disclosed is a method and an apparatus to process a workpiece including producing a first beam of laser energy characterized by a first spatial intensity distribution. A first workpiece is processed using the first beam of laser energy to form a plurality of features at a first distance between the scan lens and the first workpiece and forming a second features at a second distance. The method includes determining which of the plurality of features has a shape that most closely resembles the shape of the first spatial intensity distribution and setting a process distance as the distance that produced that feature. Using this process distance, a surface of a second workpiece is processed using second beam of laser energy with a second spatial intensity distribution. 1. A method of processing a workpiece using a laser processing system having a scan lens , the method , comprising:producing a first beam of laser energy characterized by a first spatial intensity distribution having a non-circular perimeter shape at the focal point of the beam when viewed in a plane that is orthogonal to a path along which the beam of laser energy propagates;processing a first workpiece using the first beam of laser energy;the processing comprising forming a plurality of features in the first workpiece, wherein a first distance between the scan lens and the first workpiece during the forming of one of the plurality of features is different from a second distance between the scan lens and the first workpiece during the forming of at least one other of the plurality of features;determining which of the plurality of features has a shape that most closely resembles the shape of the first spatial intensity distribution;setting a process distance as the distance between the scan lens and the first workpiece during the forming of the feature having the shape that most closely resembles the shape of the first spatial intensity distribution;determining an imaging plane as a plane at the process ...

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03-01-2019 дата публикации

Method for defining a laser tool path

Номер: US20190001436A1
Принадлежит: Agie Charmilles New Technologies SA

Open patches whose boundary is affected by the laser ray 2 being defined for any areas which could not be machined from validated closed patches 15. Optionally, the method also comprises a step 400 of merging of the validated closed patches 15 into groups 50 of patches.

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03-01-2019 дата публикации

Method for producing a pre-coated metal sheet

Номер: US20190001438A1
Автор: Ehling Wolfram
Принадлежит: ArcelorMittal

This method for preparing a pre-coated metal sheet for welding thereof to another pre-coated metal sheet, containing the following successive steps: 133-. (canceled)34. A method for preparing a pre-coated metal sheet for welding thereof to another pre-coated metal sheet , comprising the following successive steps:providing a pre-coated metal sheet comprising a metal substrate provided, on at least one of its faces, with a pre-coating layer, thenremoving, on at least one face of said pre-coated metal sheet, at least part of said pre-coating layer so as to form a removal zone, said removal being done by an impact of a laser beam on said pre-coating layer, the removal step comprising, over the course of the removal, the relative displacement of said laser beam with respect to the metal sheet in a direction of advance,wherein during the removal, the laser beam is inclined relative to the face of the metal sheet such that the orthogonal projection of the laser beam on said face of the metal sheet is located in the zone of the metal sheet in which the removal has already been done, and wherein the laser beam forms an angle of inclination comprised between 12° and 50° with the direction normal to the face of the metal sheet.35. The method according to claim 34 , wherein the pre-coating layer is a layer of aluminum claim 34 , an aluminum-based layer or a layer of aluminum alloy.36. The method according to claim 34 , wherein the pre-coating layer is a layer of aluminum alloy further comprising silicon.37. The method according to claim 34 , wherein the angle of inclination of the laser beam is comprised between 15° and 45°.38. The method according to claim 34 , wherein the angle of inclination of the laser beam is comprised between 20° and 40°.39. The method according to claim 34 , wherein the angle of inclination of the laser beam is comprised between 25° and 40°.40. The method according to claim 34 , wherein the angle of inclination of the laser beam is comprised between 25 ...

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03-01-2019 дата публикации

METHOD FOR ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL OBJECTS FROM METALLIC GLASSES

Номер: US20190001440A1
Принадлежит:

A method for additive manufacturing of three-dimensional objects from metallic glasses utilizing a process of melting of successive layers of the starting material by a laser beam or an electron beam. The method includes steps such that every material layer is melted twice, using parameters which yield a crystalline melt trace in the first melting, and the successively melted beam paths contact with one another, while in the second melting, parameters yielding an amorphous melt trace are used, and the successively remelted paths or spots do not come in contact with one another, and/or between the scanning of successive paths or spots, an interval not shorter than 10 ms is maintained, the surface power density in the first remelting being lower than in the second remelting. 1. A method for additive manufacturing of three-dimensional objects from metallic glasses , the method comprising:melting of successive layers of an alloying starting material by a laser beam or an electron beam, wherein every material layer is melted twice, using parameters which yield a crystalline melt trace in the first melting, and the successively melted beam paths come in contact with one another, while in the remelting, parameters yielding an amorphous melt trace are used, and the successively remelted paths or spots do not come in contact with one another, and/or between the scanning of successive paths or spots, an interval not shorter than 10 ms is maintained, the surface power density in the first remelting being lower than in the second remelting.2. The method according to claim 1 , wherein in the amorphous remelting claim 1 , paths or spots remelted successively are separated by a distance not shorter than 300 μm.3. The method according to claim 1 , wherein the first melting is realized with a beam speed of 10-2000 mm/s and a surface power density of 10-5·10W/cm.4510. The method according to claim 1 , wherein the remelting is realized with a beam speed of 200-5000 mm/s and a surface ...

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03-01-2019 дата публикации

LASER PROCESSING APPARATUS, METHODS OF LASER-PROCESSING WORKPIECES AND RELATED ARRANGEMENTS

Номер: US20190001442A1
Принадлежит:

Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed. 1. (canceled)2. An apparatus for laser-processing a workpiece , the apparatus , comprising:a laser source configured to generate a plurality of laser pulses;a scan lens arranged in a beam path along which the plurality of laser pulses are directable to the workpiece to thereby irradiate a process spot at the workpiece;a first positioner including an acousto-optical deflector (AOD) system arranged along the optical path between the laser source and the scan lens, wherein the first positioner is operative to deflect the plurality of laser pulses relative to the scan lens to thereby position the process spot within a first scanning range associated with the first positioner a processor configured to generate one or more control signals to which the first positioner is responsive; and', {'b': 3', '14, 'computer memory accessible by the processor, wherein the computer memory has instructions stored thereon which, when executed by the processor, cause the first positioner to scan the process spot along a process trajectory to form a via in the workpiece, wherein the process trajectory defines a sequence of spot locations to be addressed upon irradiating the workpiece with the plurality of laser pulses during formation of the via and wherein a maximum diameter of the via is smaller than or equal to the first scanning range. claims -. (canceled ...

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02-01-2020 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS

Номер: US20200001532A1
Автор: Werner Jürgen
Принадлежит: CONCEPT LASER GMBH

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 ...

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03-01-2019 дата публикации

HEATING SYSTEM FOR COMPOSITE REWORK OF AIRCRAFT

Номер: US20190001594A1
Принадлежит:

A method and apparatus comprising a laser unit and a controller. The laser unit is configured to generate a number of laser beams. The controller is configured to operate the laser unit to generate the number of laser beams resulting in a desired level of heating of a composite patch that cures the composite patch on a composite structure. 115-. (canceled)16. A method for curing a composite patch on a composite structure , the method comprising:attaching a rework system to a location on the composite structure comprising the composite patch;receiving, in a controller configured to operate a laser unit, rework information for generating commands for selecting and transmitting, from the laser unit, a wavelength and intensity required to pass through a vacuum bag with a vacuum applied to the vacuum bag and cause a desired level of heating of the composite patch, within the vacuum bag, for each step needed to cure the composite patch on the composite structure, while avoiding overheating a fiber in the composite patch; andoperating the rework system, controlling the laser unit, a number of laser beams resulting in the desired level of heating of the composite patch that cures the composite patch on the composite structure.17. The method of claim 16 , wherein the operating step comprises:identifying parameters for operating the rework system to generate the number of laser beams resulting in the desired level of heating of the composite patch that cures the composite patch on the composite structure; andoperating the rework system using the parameters identified to generate the number of laser beams resulting in the desired level of heating of the composite patch that cures the composite patch on the composite structure.18. The method of claim 17 , wherein the operating step further comprises:monitoring heating of the composite patch during operation of the rework system using the parameters identified to generate the number of laser beams resulting in the desired level ...

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03-01-2019 дата публикации

Method for matching and tracking workpieces in laser etching operation

Номер: US20190001723A1
Принадлежит:

A method for matching and tracking workpieces in laser etching operation includes generating by the computer a label image that uniquely identifies the workpiece, moving a laser head to the workpiece, setting the laser head to a first power level by a power controller, etching the product image on the workpiece using a laser beam emitted from the laser head, wherein the laser beam is modulated at the first power level in accordance with a product image in a pixel wise fashion across the workpiece, moving the laser head to the label by the transport mechanism, setting the laser head to a second power level by the power controller, etching the label image on the workpiece using a laser beam emitted from the laser head, wherein the laser beam is modulated at the second power level in accordance with the label image in a pixel wise fashion across the label. 1. A method for matching and tracking workpieces in laser etching operation , comprising:receiving a product image by a computer, wherein the product image is to be reproduced on a workpiece by laser etching;generating, by the computer, a label image that uniquely identifies the workpiece, wherein the workpiece and the label are placed over a platform in a laser etching apparatus;moving a laser head to the workpiece by a transport mechanism;setting the laser head to a first power level by a power controller;while scanning the laser head across the workpiece, etching the product image on the workpiece using a laser beam emitted from the laser head, wherein the laser beam is modulated at the first power level in accordance with the product image in a pixel wise fashion across the workpiece;moving the laser head to the label by the transport mechanism;setting the laser head to a second power level by the power controller;while scanning the laser head across the label, etching the label image on the workpiece using a laser beam emitted from the laser head, wherein the laser beam is modulated at the second power level in ...

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07-01-2016 дата публикации

Laser processing apparatus and laser processing method

Номер: US20160002088A1
Принадлежит: V Technology Co Ltd

A laser processing apparatus that condenses a laser beam into an annular shape to irradiate the condensing position of the laser beam within a thickness range of a substrate, and shifts the condensing position in such a manner that the center of the condensing position that is annular moves in a circular manner, at a stage of shifting the condensing position in a thickness direction of the substrate and a planar direction of the substrate.

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05-01-2017 дата публикации

EDGE CHAMFERING METHODS

Номер: US20170001900A1
Принадлежит:

Processes of chamfering and/or beveling an edge of a glass substrate of arbitrary shape using lasers are described herein. Two general methods to produce chamfers on glass substrates are the first method involves cutting the edge with the desired chamfer shape utilizing an ultra-short pulse laser to create perforations within the glass; followed by an ion exchange. 1. A method of chamfering a material comprising:focusing a pulsed laser beam into a laser beam focal line, viewed along the beam propagation direction;directing the laser beam focal line into the material at a first angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line within the material;translating the material and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a first plane at the first angle within the material;directing the laser beam focal line into the material at a second angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line within the material;translating the material and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a second plane at the second angle within the material, the second plane intersecting the first plane, andseparating the material along the first plane and the second plane by applying an ion-exchange process to the material, wherein during separating of the material along the first plane and the second plane the ion-exchange process is applied to the material for time t, wherein 10 min≦t≦120 min.2. The method of claim 1 , wherein directing the laser beam focal line into the material at a first angle of incidence to the material is directed to a first surface of the material and directing the laser beam focal ...

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03-01-2019 дата публикации

METHOD AND SYSTEM FOR LASER HARDENING OF A SURFACE OF A WORKPIECE

Номер: US20190002997A1
Принадлежит:

A method of laser hardening of a surface area of a workpiece, such as a surface of a journal of a crankshaft, including the steps of generating a relative movement between the surface of the workpiece and a laser source to allow a laser spot to subsequently be projected onto different portions of the surface area, and during the relative movement, repetitively scanning the laser beam so as to produce a two-dimensional equivalent effective laser spot on the surface area. The energy distribution of the effective laser spot is adapted so that it is different in a more heat sensitive subarea, such as in an area adjacent to an oil lubrication opening, than in a less heat sensitive subarea, so as to prevent overheating of the more heat sensitive subarea. 1. An apparatus for hardening a surface area of a workpiece , the surface area comprising at least one less heat sensitive subarea and at least one more heat sensitive subarea , the apparatus comprising a laser source arranged to project an effective laser spot onto the surface area and means for generating relative movement between said surface area and the effective laser spot so that said effective laser spot is moved along said surface area so as to subsequently and progressively heat different portions of said surface area to a temperature suitable for hardening , whereby said effective laser spot is arranged to feature a two-dimensional energy distribution , the apparatus further comprising a control system for controlling operation of the apparatus , wherein said control system is arranged to modify said two-dimensional energy distribution so that it is different in said more heat sensitive subarea than in said less heat sensitive subarea.2. The apparatus according to claim 1 , wherein said at least one more heat sensitive subarea includesan area adjacent to a hole in the surface area, such as an oil lubrication hole; and/ora fillet, such as an undercut fillet; and/ora previously hardened portion of the surface ...

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