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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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08-11-2017 дата публикации

Сопловой аппарат турбины

Номер: RU0000174862U1
Автор: Алексей Владимирович Григорьев, Анастасия Валерьевна Соловьева, Юрий Николаевич Журенков
Принадлежит: Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК")

Полезная модель относится к авиационной технике, в частности к сопловым аппаратам турбины, и может быть использована в малоразмерных газотурбинных двигателях вертолетов и беспилотных летательных аппаратов. Сопловой аппарат газовой турбины включает лопатки, установленные между наружной и внутренней обоймами, закрепленные между собой стяжными хомутами. Лопатки, наружная и внутренняя обоймы, стяжные хомуты изготовлены методом селективного лазерного плавления и с применением минимальной механической обработки. Техническим результатом заявленной полезной модели является упрощение процесса и сокращение времени изготовления соплового аппарата турбины. 6 ил. Ц 1 174862 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) Зав а за о 0 (13) (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ НОО 902 (2006.01) В22Е 3/105 (2006.01) В22Е 504 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016148925, 13.12.2016 (24) Дата начала отсчета срока действия патента: 13.12.2016 Дата регистрации: 08.11.2017 Приоритет(ы): (22) Дата подачи заявки: 13.12.2016 (45) Опубликовано: 08.11.2017 Бюл. № 31 Адрес для переписки: 105118, Москва, пр-т Буденного, 16, АО "ОДК", Жамойдику К.М. (72) Автор(ы): Григорьев Алексей Владимирович (КО), Соловьева Анастасия Валерьевна (КО), Журенков Юрий Николаевич (КП) (73) Патентообладатель(и): Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК”) (ВУ) (56) Список документов, цитированных в отчете о поиске: КО 2593312 С2, 10.08.2016. 0$ 2008/ 0014457 АТ, 17.01.2008. КО 2568600 СТ, 20.11.2015. ВО 151769 01, 20.04.2015. ВО 2260700 С1, 20.09.2005. (54) Сопловой аппарат турбины (57) Реферат: Полезная модель относится к авиационной технике, в частности к сопловым аппаратам турбины, и может быть использована в малоразмерных газотурбинных двигателях вертолетов и беспилотных летательных аппаратов. Сопловой аппарат газовой турбины включает лопатки, установленные между наружной и внутренней обоймами, закрепленные между собой стяжными ...

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Номер записи: 1
09-04-2019 дата публикации

Печатающая головка для строительных 3d-принтеров

Номер: RU0000188386U1
Автор: Артемий Васильевич Кропачев, Роман Васильевич Кропачев, Эльза Робертовна Ахтямова
Принадлежит: Роман Васильевич Кропачев

Полезная модель относится к области машиностроения и строительной отрасли и предназначена для изготовления строительных конструкций, в том числе для строительства жилых домов, зданий и сооружений различного назначения. Техническим результатом полезной модели является повышение производительности строительного 3D-принтера, который достигается за счет того, что печатающая головка для строительных 3D-принтеров содержит раму, механизмы перемещения экструдера по осям X, Y, Z с двигателями и приводами механизмов перемещения, экструдер, устройство позиционирования экструдера и устройство приготовления и подачи смеси в печатающую головку, отличающаяся тем, что содержит как минимум пару экструдеров, механизм перемещения каждого из которых выполнен в виде манипулятора, представляющего собой систему подвижно связанных со множеством степеней свободы, рычагов, экструдеры смонтированы подвижно на манипуляторах, на раме и на экструдерах смонтированы датчики положения в пространстве, а устройство приготовления и подачи строительной смеси выполнено в виде шнекового дозатора. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 188 386 U1 (51) МПК B33Y 30/00 (2015.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B33Y 30/00 (2019.02) (21) (22) Заявка: 2019101351, 18.01.2019 (24) Дата начала отсчета срока действия патента: 18.01.2019 (73) Патентообладатель(и): Кропачев Роман Васильевич (RU) 09.04.2019 (56) Список документов, цитированных в отчете о поиске: RU 2636980 C1, 29.11.2017. US (45) Опубликовано: 09.04.2019 Бюл. № 10 1 8 8 3 8 6 R U (54) ПЕЧАТАЮЩАЯ ГОЛОВКА ДЛЯ СТРОИТЕЛЬНЫХ 3D-ПРИНТЕРОВ (57) Реферат: Полезная модель относится к области позиционирования экструдера и устройство машиностроения и строительной отрасли и приготовления и подачи смеси в печатающую предназначена для изготовления строительных головку, отличающаяся тем, что содержит как конструкций, в том числе для строительства минимум пару экструдеров, механизм жилых домов, ...

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Номер записи: 2
02-02-2012 дата публикации

Systems and methods for stator bar press tooling

Номер: US20120024465A1
Автор: Caleb James Munholand, David John Wardell, Mark Kent Shoemaker, Mark Stephen Clough
Принадлежит: General Electric Co

Certain embodiments of the invention may include systems and methods for providing stator bar press tooling. According to an example embodiment of the invention, a method is provided for pressing and curing insulation material on a shaped element. The method can include providing tooling. The tooling can include an inner press and an outer press, wherein at least an inner press surface associated with the inner press and an outer press surface associated with the outer press are fabricated at least in part by sintering. The method can include applying at least one of pressure or heat to insulation material in contact with a shaped element with the tooling, wherein the inner press surface and the outer press surface of the tooling conform to least an external portion of the shaped element.

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Номер записи: 3
01-03-2012 дата публикации

Structure manufacturing method and structure

Номер: US20120052260A1
Автор: Shin Masuhara
Принадлежит: Sony Corp

A structure manufacturing method includes laminating a first film on a base material, selectively irradiating the first film with an energy ray depending on a position of a surface of the first film on the base material, to form a latent image of a pattern on the first film, laminating a second film on the surface of the first film, and supplying a developer to the second film and removing a removal target portion of the first film to be selectively removed along with the second film, thereby developing the pattern.

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Номер записи: 4
06-09-2012 дата публикации

Apparatus and method for producing a three-dimensional object

Номер: US20120223059A1
Автор: Ulf Ackelid
Принадлежит: ARCAM AB

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

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Номер записи: 5
03-01-2013 дата публикации

Turbine blade and method for its production

Номер: US20130001837A1
Автор: Frank Kernstock, Jens Göhler, Martin Schäfer, Olaf Rehme
Принадлежит: SIEMENS AG

A method of producing a turbine blade is provided, wherein the turbine blade is produced by an additive production method. Cavities and/or lattice structures can be produced in one and the same process. The additive production method also allows drainage slots, heating openings, and/or other holes or, as the case may be, recesses to be provided in the turbine blade while the turbine blade is being produced. Holes can furthermore be furnished completely or partially with a lattice structure.

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Номер записи: 6
30-05-2013 дата публикации

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

Номер: US20130134637A1
Автор: Andreas Wiesner, Dieter Schwarze, Henner Schoeneborn
Принадлежит: SLM Solutions Group AG

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

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Номер записи: 7
02-01-2014 дата публикации

Composite structure manufacturing method and apparatus

Номер: US20140001670A1
Автор: Michael Drever
Принадлежит: Michael Drever

A manufacturing apparatus employs three-dimensional (3D) printing technology and computer numerical controlled (CNC) positioning technology that creates composite structures of any size. The composite structures exhibit predefined characteristics suitable for different applications. The composite structures consist of plastic sheathing melded together to form bladders, as well as fabric impregnated with one or more resin-based compounds. The composite structures assume any of a myriad of predefined shapes. The composite structures exhibit fire-resistance, water-resistance, water containment, phase-change capability, ballistic protection, low weight, and may further be operable as a solar panel or be electrically conductive. The composite structures are optionally constructed with vias or pathways, through which pipes, electrical conduit, and other building materials may be threaded. The 3D printing and CNC technologies create the composite structures by printing them, already inpregnated and selectively cured. The composite structures are optionally inflated so as to take on an intended shape.

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Номер записи: 8
30-01-2014 дата публикации

Methods for Producing Coaxial Structures Using a Microfluidic Jet

Номер: US20140027952A1
Автор: David Bohling, David Michael Keicher, Fa-Gung Fan, Marcelino Essien
Принадлежит: INTEGRATED DEPOSITION SOLUTIONS Inc

The object of the invention is the provision of methods for controlled production of continuous multi-component filaments or discreet structures using a multi-component liquid jet issuing from an orifice. A multi-component jet consists of two or more liquids. The liquids may be miscible or immiscible, and form a co-axially propagating flow along the central axis of a flow cell. The working distance between the exit orifice and a substrate can be as large as 50 mm, so that in-flight processing of the jet is possible. The coaxial flow consists of an outer sheath liquid and an inner sample liquid or composite of liquids. The flow cell and the exit channel of the deposition head are heated so that the pressurized sheath liquid temperature is raised to near or above the boiling point of the sheath liquid at the local atmospheric pressure. The jet exits the deposition head through the orifice, and the outer liquid is evaporated as the jet falls at atmospheric pressure. The sheath liquid is processed thermally, optically, or chemically during flight to form a protective or insulating layer for the inner liquid or liquids. The inner liquids may contrastingly consist of an ultraviolet (UV) curable ink that is processed in-flight or after deposition. Since UV curable inks contain no volatile components, the coaxial jetted filament can be processed without producing cracks or bubbles in the sheath layer. Line widths are produced in the range from approximately 1 to 1000 microns.

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Номер записи: 9
20-03-2014 дата публикации

Reduced build mass additive manufacturing chamber

Номер: US20140077422A1
Автор: Alan B. Minick
Принадлежит: Pratt and Whitney Rocketdyne Inc

A disclosed additive manufacturing machine includes a work surface for supporting fabrication of part and a housing defining a chamber over the work surface. A material applicator supported on the housing deposits material onto the work surface and a blocker plate disposed between the material applicator and the work surface for blocking a portion of material deposited by the material applicator. An energy directing device is supported on the housing and directing energy within the chamber to form the part.

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Номер записи: 10
06-01-2022 дата публикации

PLATEN WITH GRID ASSEMBLY FOR 3D PRINTING

Номер: US20220001613A1
Автор: Anderson Patrick W., Braton Benjamin L., Chapman Jeff Lee, Durand Josh, Migliori Bryan, Schiel Colin, Skubic Robert
Принадлежит:

A platen assembly for use with an extrusion-based 3D printer includes a grid assembly comprising at least a 4×2 framework of interlocked perpendicular x direction beams and y direction beams, providing a substantially planar upper surface and a bottom surface. The platen assembly includes a platen comprising a thin metal sheet supported on the upper surface of the grid assembly and secured to the grid assembly such that the top surface provides a substantially flat build surface. The x direction beams, the y direction beams and the platen are constructed of substantially a same thermal expansion properties, and wherein the build surface of the platen has a build surface area of at least 400 square inches and maintains its flatness to within a flatness tolerance of 0.020 inches over a temperature range of at least 20 C-300 C. 1. A platen assembly for use with an extrusion-based 3D printer , the platen assembly comprising:a grid assembly comprising at least a 4×2 framework of interlocked perpendicular x direction beams and y direction beams, providing a substantially planar upper surface and a bottom surface; anda platen comprising a thin metal sheet supported on the upper surface of the grid assembly and secured to the grid assembly such that the top surface provides a substantially flat build surface;wherein the x direction beams, the y direction beams and the platen are constructed of substantially a same thermal expansion properties; andwherein the build surface of the platen has a build surface area of at least 400 square inches and maintains its flatness to within a flatness tolerance of 0.020 inches over a temperature range of at least 20 C-300 C.2. The platen assembly of claim 1 , wherein the grid assembly comprises:an interior grid comprising at least two x direction beams interconnected with at least two y direction beams; andan exterior frame comprising exterior beams that at least partially surrounding the interior grid.3. The platen assembly of claim 1 , ...

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Номер записи: 11
07-01-2021 дата публикации

Light Recycling For Additive Manufacturing Optimization

Номер: US20210001404A1
Автор: Berdichevsky Eugene, DeMuth James A., Fees Heiner, Kamshad Kourosh, Leard Francis L., Toomre Erik
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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Номер записи: 12
07-01-2021 дата публикации

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

Номер: US20210001544A1
Автор: CARLAVAN CEDRIC, WALRAND GILLES
Принадлежит:

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

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Номер записи: 13
07-01-2021 дата публикации

THREE-DIMENSIONAL SHAPED OBJECT MANUFACTURING DEVICE

Номер: US20210001548A1
Автор: OKAMOTO Eiji, TSUNOYA Akihiko
Принадлежит:

In a three-dimensional shaped object manufacturing device, when a unit is moved in a forward direction, powder is supplied from a first supply portion, a powder layer is formed by a first layer forming portion, a liquid is discharged to a shaping region from a head, and a shaping table is moved in a direction separating from the unit after discharging the liquid is ended and before a second layer forming portion faces the shaping region, and when the unit is moved in a backward direction, the powder is supplied from a second supply portion, the powder layer is formed by the second layer forming portion, the liquid is discharged to the shaping region from the head, and the shaping table is moved in the direction separating from the unit after discharging the liquid to the shaping region is ended and before the first layer forming portion faces the shaping region. 1. A three-dimensional shaped object manufacturing device , comprising:a shaping table configured to move a shaping surface of a three-dimensional shaped object in a shaping surface moving direction intersecting the shaping surface;a unit configured to reciprocate with respect to the shaping table and including a first supply portion and a second supply portion configured to supply powder, a first layer forming portion and a second layer forming portion configured to form a powder layer on the shaping table using the powder, and at least one head configured to discharge a liquid containing a binder to a shaping region of the three-dimensional shaped object on the powder layer; anda control unit configured to control the unit and the shaping table, whereinthe unit includes the first supply portion, the first layer forming portion, the head, the second layer forming portion, and the second supply portion in an order from a head side in a forward direction in a reciprocating direction of the unit, and when moving the unit in the forward direction when shaping the three-dimensional shaped object, supply the ...

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Номер записи: 14
07-01-2021 дата публикации

SHIPPING AND HANDLING FLUID FOR A THREE-DIMENSIONAL PRINTER

Номер: US20210001553A1
Автор: Lebron Hector, Sabo Thaomas M., Woodruff Shannon Reuben
Принадлежит:

An example of a shipping and handling fluid for a three-dimensional (3D) printer is disclosed. The shipping and handling fluid includes a co-solvent, a first sugar alcohol, a second sugar alcohol, a surfactant, and a balance of water. The first sugar alcohol includes a ring structure, and the second sugar alcohol has a linear structure. 1. A shipping and handling fluid for a three-dimensional (3D) printer , comprising:a co-solvent;a first sugar alcohol including a ring structure;a second sugar alcohol having a linear structure;a surfactant; anda balance of water.2. The shipping and handling fluid as defined in wherein:the first sugar alcohol is selected from the group consisting of maltitol, lactitol, isomalt, and combinations thereof; andthe second sugar alcohol is selected from the group consisting of xylitol, erythritol, sorbitol, mannitol, and combinations thereof.3. The shipping and handling fluid as defined in wherein:the first sugar alcohol is present in an amount ranging from about 15 wt % to about 30 wt %, based on a total weight of the shipping and handling fluid; andthe second sugar alcohol is present in an amount ranging from about 10 wt % to about 25 wt %, based on the total weight of the shipping and handling fluid.4. The shipping and handling fluid as defined in wherein a combination of the first sugar alcohol and the second sugar alcohol exhibits thermal stability at a temperature from about 160° C. to about 300° C. claim 3 , and wherein the combination of the first sugar alcohol and the second sugar alcohol is present in an amount less than 45 wt % based on the total weight of the shipping and handling fluid.5. The shipping and handling fluid as defined in wherein a total solids content is less than 45 wt % claim 1 , based on a total weight of the shipping and handling fluid.6. The shipping and handling fluid as defined in wherein:a viscosity of the shipping and handling fluid ranges from about 6 cP to <10 cP; or{'sup': '3', 'a density of the ...

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Номер записи: 15
07-01-2021 дата публикации

DEVICE AND METHOD FOR CALIBRATING AN IRRADIATION SYSTEM OF AN APPARATUS FOR PRODUCING A THREE-DIMENSIONAL WORK PIECE

Номер: US20210001559A1
Автор: Thiel Christiane
Принадлежит:

A device () for calibrating an irradiation system () of an apparatus () for producing a three-dimensional work piece is suggested, the irradiation system () comprising a first irradiation unit () for selectively irradiating a first irradiation beam () along a first operating axis () onto an irradiation plane () and a second irradiation unit () for selectively irradiating a second irradiation beam () along a second operating axis () onto the irradiation plane (), wherein the device () comprises: control unit () adapted to control the first irradiation unit () so as to irradiate the first irradiation beam () onto the irradiation plane () according to an irradiation pattern () and to control the second irradiation unit () so as to displace the second operating axis () relative to the irradiation plane () such that the second operating axis () traverses the irradiation pattern () produced by the first irradiation unit () onto the irradiation plane (); and a detecting unit () adapted to detect process emissions emitted from a region of an impingement point () on the irradiation plane () at which the second operating axis () of the second irradiation unit () passes the irradiation plane () and to output signals indicative of the detected process emissions to the control unit (); and wherein the control unit () is further adapted to determine a position (x, y) of the irradiation pattern () produced by the first irradiation unit () on the irradiation plane (); determine a position (x, y) of at least one intersection point () between the irradiation pattern () produced by the first irradiation unit () and the second operating axis () of the second irradiation unit () based on the signals output by the detecting unit (); and calibrate the irradiation system () based on the determined position (x, y) of the irradiation pattern () produced by the first irradiation unit () and the determined position (x′, y′) of the at least one intersection point. 115-. (canceled)17. The device ...

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Номер записи: 16
07-01-2021 дата публикации

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

Номер: US20210001561A1
Автор: Hamann Joerg, Holfelder Peter, Huemmeler Ludger, WALTER Manuel
Принадлежит: EOS GMBH ELECTRO OPTICAL SYSTEMS

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

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Номер записи: 17
02-01-2020 дата публикации

Ultrasonically assisted powder bed additive manufacturing

Номер: US20200001364A1
Автор: Matthew A. Short
Принадлежит: Edison Welding Institute Inc

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

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Номер записи: 18
07-01-2016 дата публикации

DEVICE FOR PRODUCING THREE-DIMENSIONAL MODELS

Номер: US20160001507A1
Автор: Ederer Ingo, Hartmann Andreas Dominik
Принадлежит:

The present invention relates to a device for manufacturing three-dimensional models by means of a 3D printing process, whereby a build platform for application of build material is provided and a support frame is arranged around the build platform, to which said support frame at least one device for dosing the particulate material and one device for bonding the particulate material is attached via the guiding elements and the support frame is moveable in a Z direction, which essentially means perpendicular to the base surface of the build platform, said movement provided by at least two vertical positioning units on the support frame. In this respect, it is provided that the positioning units are respectively separate components and are arrangeable on the support frame independently from one another and the location and orientation of such can be adjusted independently from one another. 1. A method for assembling an apparatus for manufacturing three-dimensional models by means of a 3D printing process comprising:arranging at least i) a first pair of vertical positioning units and ii) a second pair of vertical positioning units on a common substrate, wherein each vertical positioning unit has a drive direction;independently adjusting each of the vertical positioning units so that the drive direction of each vertical positioning unit is in a vertical direction;attaching the first pair of vertical positioning units to a first side of a support frame; andattaching the second pair of vertical positioning units to a second side of the support frame, wherein the first and second sides are opposing sides;wherein the support frame is arranged around a build platform having a base surface for building the 3-D model;the support frame is moveable in a vertical direction by the vertical positioning units; andthe base surface of the build platform is perpendicular to the vertical direction.211-. (canceled)12. The method of claim 1 , wherein the support frame supports a ...

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Номер записи: 19
02-01-2020 дата публикации

TISSUE SUBSTITUTE PRINTING

Номер: US20200001498A1
Автор: Kuster Michael, Thurner Marc
Принадлежит: regenHU AG

A cartridge for use in a tissue substitute printing system is disclosed, the cartridge may have: 1. A cartridge for use in a tissue substitute printing system , the cartridge comprising:a material reservoir, the material reservoir storing a tissue substitute material in a flowable form;a material aperture arranged at a bottom side of the cartridge, the material aperture being fluidic coupled with the material reservoir for releasing the tissue substitute material stored in the material reservoir; andat least one auxiliary aperture arranged at the bottom side of the cartridge for releasing an auxiliary medium, the at least one auxiliary aperture being arranged in proximity to and fluidic separate from the material aperture.2. The cartridge according to claim 1 , wherein the cartridge comprises an auxiliary medium reservoir claim 1 , the auxiliary medium reservoir storing an auxiliary medium claim 1 , the auxiliary medium reservoir being fluidic coupled with the at least one auxiliary aperture.3. The cartridge according to claim 2 , wherein the auxiliary medium reservoir at least partially surrounds the material reservoir.4. The cartridge according to claim 1 , wherein the cartridge comprises a plurality of auxiliary apertures.5. The cartridge according to claim 4 , wherein the auxiliary apertures are arranged along an arc around the material aperture.6. The cartridge according to wherein the cartridge further comprises an auxiliary medium distribution ductwork claim 4 , the auxiliary medium distribution ductwork being fluidic coupled with the plurality of auxiliary apertures.7. The cartridge according to claim 1 , wherein the cartridge comprises at least one inlet opening claim 1 , the at least one inlet opening being fluidic coupled with the at least one auxiliary aperture.8. The cartridge according to claim 7 , wherein the at least one auxiliary aperture is fluidic coupled with an associated inlet opening via a point-to-point coupling.9. The cartridge according to ...

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Номер записи: 20
02-01-2020 дата публикации

DUAL WAVELENGTH NEGATIVE IMAGING DLP-SLA SYSTEM

Номер: US20200001531A1
Автор: MORAN Bryan D.
Принадлежит:

The present disclosure relates to a digital light projector (DLP) system which has first and second light sources. The first optical source may generate a first beam at a first wavelength which causes polymerization of a photopolymerizable resist. The second optical source may generate a second beam at a second wavelength different from the first wavelength, and where the second beam inhibits polymerization of the photopolymerizable resist. A digital micromirror device (DMD) is included which has a plurality of micromirrors and is configured to be illuminated by the first and second beams and to generate a pattern on the micromirrors which has light from the first and second light wavelengths controlled by the micromirror position. The first light image causes polymerization of a first portion of the photopolymerizable resist, while the second image inhibits polymerization of a second portion of the photopolymerizable resist. 1. A digital light projector (DLP) system for comprising:a first light source for generating a first beam at a first wavelength, the first beam operable to cause polymerization of a photopolymerizable resist;a second light source for generating a second beam at a second wavelength different from the first wavelength, and where the second beam is operative to inhibit polymerization of the photopolymerizable resist; anda digital micro mirror device (DMD) having a plurality of micromirrors and configured to receive the first and second beams and to generate therefrom a first light pattern and a second light pattern, the first light pattern, when falling on the photopolymerizable resist, creating a first image made up of light of the first wavelength, and the second light pattern, when falling on the photopolymer resist, creating a second image made up of light of the second wavelength, the two images being interleaved, and where the first wavelength light causes polymerization of a first portion of the photopolymerizable resist, while the second ...

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Номер записи: 21
03-01-2019 дата публикации

THREE-DIMENSIONAL PRINTER INCLUDING LIGHT EXPOSURE SYSTEM FOR LARGE SCREEN DIVIDED INTO MULTIPLE SCREENS

Номер: US20190001551A1
Автор: Lee Byung-keuk
Принадлежит:

The present invention relates to a 3D printer with an exposure system for a large-scale screen. The 3D printer of the present invention comprises a resin tank configured to be filled with liquid resin; a build platform configured to be immersed in the resin tank or positioned on a surface of the resin tank to form a building plane, and make the liquid resin be cured and stacked on the building plane; a build-platform driver configured to drive the build platform to move up and down; an exposure system configured to project an image beam toward the building plane; and a controller configured to generate a layered unit image from shape information about a building object, split the layered unit image into a plurality of split images, and provides the plurality of split images to the exposure system with time differences, wherein the exposure system receives the plurality of split images from the controller and projects a plurality of split image beams with time differences, and the plurality of split image beams is made into the image beam by a plurality of split screens with time differences and projected to the building plane. The present invention provides a 3D printer which employs one optical engine to form a large-scale screen, thereby having a simpler structure and costing less than a system using a plurality of optical engines. 1. A 3D printer comprising:a resin tank configured to be filled with liquid resin;a build platform configured to be immersed in the resin tank or positioned on a surface of the resin tank to form a building plane, and make the liquid resin be cured and stacked on the building plane;a build-platform driver configured to drive the build platform to move up and down;an exposure system configured to project an image beam toward the building plane; anda controller configured to generate a layered unit image from shape information about a building object, split the layered unit image into a plurality of split images, and provides the ...

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Номер записи: 22
03-01-2019 дата публикации

Additive manufacturing material for powder rapid prototyping manufacturing

Номер: US20190001556A1
Автор: Hiroyuki Ibe, Junya Yamada
Принадлежит: Fujimi Inc

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

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Номер записи: 23
03-01-2019 дата публикации

PRINT HEAD FOR ADDITIVE MANUFACTURING SYSTEM

Номер: US20190001561A1
Автор: Stockett Ryan C.
Принадлежит: CC3D LLC

A print head is disclosed for use with an additive manufacturing system. The print head may include a nozzle having a base end, a tip end, and a cylindrical passage extending from the base end to the tip end. The print head may also include a compactor located at least partially inside of the nozzle at the tip end. 1. A print head for an additive manufacturing system , comprising:a nozzle having a base end, a tip end, and a cylindrical passage extending from the base end to the tip end; anda compactor located at least partially inside of the nozzle at the tip end.2. The print head of claim 1 , wherein a central axis of the cylindrical passage passes through the compactor.3. The print head of claim 2 , wherein the compactor is a generally spherical ball.4. The print head of claim 3 , wherein the compactor is at least one of a cylindrical roller and a crowned roller.5. The print head of claim 1 , further including a cavity formed within the tip end of the nozzle and configured to at least partially receive the compactor.6. The print head of claim 5 , wherein the compactor is captured in the cavity.7. The print head of claim 5 , further including a bearing disposed at least partially inside the cavity and configured to engage the compactor.8. The print head of claim 7 , wherein the bearing is driven to rotate the compactor.9. The print head of claim 5 , further including an orifice connecting the cylindrical passage to the cavity.10. The print head of claim 9 , wherein the orifice is generally aligned with an axis of the cylindrical passage.11. The print head of claim 9 , wherein the orifice is offset from an axis of the cylindrical passage in a travel direction of the print head.12. The print head of claim 9 , wherein the compactor is biased away from the orifice.13. The print head of claim 1 , wherein a reinforcement passing through the nozzle engages the compactor prior to placement.14. The print head of claim 13 , wherein the reinforcement engages the compactor ...

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Номер записи: 24
03-01-2019 дата публикации

PRINT HEAD FOR ADDITIVE MANUFACTURING SYSTEM

Номер: US20190001562A1
Автор: Stockett Ryan C., Tyler Kenneth Lyle
Принадлежит: CC3D LLC

A print head is disclosed for use with an additive manufacturing system. The print head may include a nozzle, and a traveling anchor point mounted at a trailing side of the nozzle. The traveling anchor point may include an arm extending radially outward from the nozzle, and a plunger slidingly disposed in the arm. The traveling anchor point may also include an actuator configured to selectively move the plunger from a stowed position to an engaged position against material discharging from the nozzle. 1. A print head for an additive manufacturing system , comprising:a nozzle; and an arm extending radially outward from the nozzle;', 'a plunger slidingly disposed in the arm; and', 'an actuator configured to selectively move the plunger from a stowed position to an engaged position against material discharging from the nozzle., 'a traveling anchor point mounted at a trailing side of the nozzle, the traveling anchor point including2. The print head of claim 1 , further including a bushing connecting the plunger to the arm.3. The print head of claim 2 , wherein the bushing is moveable along a length of the arm.4. The print head of claim 3 , further including a mechanized device configured to move the bushing relative to the arm.5. The print head of claim 4 , wherein the mechanized device is one of a rack-and-pinion and a lead screw.6. The print head of claim 1 , wherein the actuator is an electric solenoid.7. The print head of claim 1 , further including a spring configured to return the plunger to the stowed position.8. The print head of claim 1 , wherein the plunger includes:a pin; anda roller operatively connected to an end of the pin.9. The print head of claim 1 , further including a cure enhancer mounted to a side of the arm claim 1 , between the nozzle and the plunger.10. The print head of claim 9 , wherein the cure enhancer is a UV light.11. The print head of claim 1 , wherein the arm is connected to pivot around the nozzle.12. The print head of claim 1 , wherein: ...

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Номер записи: 25
03-01-2019 дата публикации

PRINT HEAD FOR ADDITIVELY MANUFACTURING COMPOSITE TUBES

Номер: US20190001564A1
Автор: Stockett Ryan C., Tyler Kenneth Lyle
Принадлежит: CC3D LLC

A print head is disclosed for use with an additive manufacturing system. The print head may include a housing configured to receive a prefabricated woven sleeve, and a fiber guide disposed at least partially inside the housing and configured for insertion into the prefabricated woven sleeve. The print head may also include a diverter connected to an end of the fiber guide inside of a downstream mouth of the housing, and at least one cure enhancer located at the mouth of the housing. 1. A print head for an additive manufacturing system , comprising:a housing configured to receive a prefabricated woven sleeve;a fiber guide disposed at least partially inside the housing and configured for insertion into the prefabricated woven sleeve;a diverter connected to an end of the fiber guide inside of a downstream mouth of the housing; andat least one cure enhancer located at the downstream mouth of the housing.2. The print head of claim 1 , wherein the at least one cure enhancer includes an inner cure enhancer connected to the diverter.3. The print head of claim 2 , wherein the at least one cure enhancer further includes at least one outer cure enhancer operatively connected to the housing.4. The print head of claim 3 , further including a collar mounted to the housing at a downstream end claim 3 , wherein the at least one outer cure enhancer includes a plurality of outer cure enhancers distributed around an inner periphery of the collar.5. The print head of claim 1 , further including a collar mounted to the housing at a downstream end claim 1 , wherein the at least one cure enhancer includes a plurality of cure enhancers distributed around an inner periphery of the collar.6. A method of additively manufacturing a composite tube claim 1 , comprising:loading a finite length of a prefabricated woven sleeve into a print head;wetting the prefabricated woven sleeve with a liquid matrix;discharging the prefabricated woven sleeve from the print head; anddirecting a cure energy onto ...

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Номер записи: 26
03-01-2019 дата публикации

PRINT HEAD FOR ADDITIVE MANUFACTURING SYSTEM

Номер: US20190001565A1
Автор: Stockett Ryan C., Tyler Kenneth Lyle
Принадлежит: CC3D LLC

A print head is disclosed for use with an additive manufacturing system. The print head may include a nozzle having an internal passage and at least one ellipsoidal orifice. The print head may also include a fiber guide disposed at least partially inside the nozzle and dividing the internal passage into a plurality of channels. A length of each of the plurality of channels extends in an axial direction of the nozzle. 1. A print head for an additive manufacturing system , comprising:a nozzle having an internal passage and at least one ellipsoidal orifice; anda fiber guide disposed at least partially inside the nozzle and dividing the internal passage into a plurality of channels,wherein a length of each of the plurality of channels extends in an axial direction of the nozzle.2. The print head of claim 1 , wherein the fiber guide includes a plurality of radially oriented dividers.3. The print head of claim 2 , wherein the plurality of radially oriented dividers are generally planner and have inner edges connected to each other.4. The print head of claim 2 , wherein the plurality of radially oriented dividers form a cross-shape.5. The print head of claim 2 , wherein the plurality of radially oriented dividers extend radially outward to an annular wall of the internal passage.6. The print head of claim 1 , wherein the plurality of channels includes a center channel and at least one peripheral channel.7. The print head of claim 6 , wherein the at least one peripheral channel includes a plurality of peripheral channels.8. The print head of claim 1 , wherein the plurality of channels are open at an outer radial side.9. The print head of claim 1 , further including a rotary actuator configured to rotate the fiber guide.10. The print head of claim 1 , wherein the fiber guide terminates short of the at least one ellipsoidal orifice.11. The print head of claim 10 , wherein ends of the fiber guide at the at least one ellipsoidal orifice are rounded.12. The print head of claim 1 ...

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Номер записи: 27
03-01-2019 дата публикации

BIOLOGICAL PRINTER

Номер: US20190001568A1
Автор: LI Yijun, Wang Deming, Wen Xuemin, Zhang Leqing
Принадлежит: REVITEK CO., LTD.

The present disclosure relates to a bioprinter, which comprises a spray head, a connector and a bioprinting material container having a discharge pipe, wherein a first end of the connector is threadedly connected with the discharge pipe, and a second end of the connector is detachably connected with the spray head. The bioprinter is configured such that, a connector is provided between the discharge pipe of the bioprinting material container and the spray head, wherein the first end of the connector is threadedly connected with the discharge pipe, and the second end is detachably disposed on the spray head. Compared with the bilateral plugging manner in the prior art, it is only necessary to unscrew the bioprinting material container such as to realize rapid replacement, so that it is extremely convenient to add the biological printing material, thereby avoiding the problem that the connector is integrally pulled out and the temperature environment is damaged when the container replaced in the past, and presenting a high reliability. 1. A bioprinter , comprising a spray head , a connector and a bioprinting material container having a discharge pipe , wherein a first end of the connector is threadedly connected with the discharge pipe , and a second end of the connector is detachably connected with the spray head.2. The bioprinter according to claim 1 , wherein an outlet end of the discharge pipe is provided with a first external thread claim 1 , and the first end of the connector is provided with a first accommodating cavity for accommodating the outlet end claim 1 , wherein the first accommodating cavity is internally provided with a first internal thread mated with the first external thread claim 1 , and the outlet end is inserted and threadedly connected into the first end of the connector.3. The bioprinter according to claim 2 , wherein the first accommodating cavity has a tapered section taken along a direction towards the second end of the connector.4. The ...

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Номер записи: 28
02-01-2020 дата публикации

FILAMENT ACCUMULATOR OR TENSIONING ASSEMBLY

Номер: US20200002121A1
Автор: Manuel Steven George, Sunden Erik
Принадлежит:

A filament accumulator assembly is provided containing a filament inlet for receiving a continuous filament from the filament source and a filament outlet for receiving the continuous filament from the filament inlet, the continuous filament forming a filament loop between the filament exiting the filament inlet and entering the filament outlet. The filament accumulator assembly further comprises a filament track defining at least part of an inner boundary and an outer boundary of a circuitous filament route between the filament inlet and the filament outlet, and the filament loop is bound by the filament track. The filament loop has a diameter that varies across a range of potential diameters within the filament track. 1. A filament accumulator for absorbing a speed mismatch between filament provided from a filament source and filament used at a filament deposition head comprising:a continuous filament forming a filament loop;a filament inlet for receiving the continuous filament from a filament source;a filament outlet for receiving the continuous filament from the filament inlet, the filament loop being a loop in the continuous filament between the continuous filament exiting the filament inlet and entering the filament outlet; anda filament track defining at least part of an inner boundary and an outer boundary of a circuitous filament route between the filament inlet and the filament outlet, the filament loop being bound by the filament track;wherein the filament loop has a diameter that varies across a range of potential diameters within the filament track;wherein the filament deposition head draws the continuous filament from the filament outlet at a first speed;wherein the filament inlet receives the continuous filament from the filament source at a second speed, andwherein a mismatch between the first speed and the second speed results in a change in the diameter of the filament loop.2. The filament accumulator of claim 1 , further comprising at least one ...

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Номер записи: 29
03-01-2019 дата публикации

Additive manufacturing material for powder lamination manufacturing

Номер: US20190003019A1
Автор: Hiroyuki Ibe, Junya Yamada
Принадлежит: Fujimi Inc

A material for shaping is provided, with which it is possible to more effectively shape a shaped article that has high density while containing a ceramic. The present invention provides a material for shaping in order for use in powder additive manufacturing. This material for shaping includes a first powder that is a granulated powder containing a ceramic, and a second powder containing a metal. The second powder constitutes 10-90% by mass (exclusive) of the total of the first powder and the second powder.

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Номер записи: 30
13-01-2022 дата публикации

FLOW DEVICE AND FLOW METHOD FOR AN ADDITIVE MANUFACTURING DEVICE AND AN ADDITIVE MANUFACTURING DEVICE WITH SUCH A FLOW DEVICE

Номер: US20220009001A1
Автор: Kerl Franz-Josef, Mehl Sebastian, Schilling Alexander
Принадлежит: EOS GMBH ELECTRO OPTICAL SYSTEMS

A flow device for an additive manufacturing device () for the production of a three-dimensional object () by layer-wise selective solidification of a building material in a build area () comprises: a process chamber (), a gas supply device for generating a gas stream in the additive manufacturing device (), at least one gas inlet () for introducing the gas stream into the process chamber () and at least one gas outlet () for directing the gas stream out of the process chamber (), and a gas supply line (), which is provided outside the process chamber (), in order to conduct gas to the at least one gas inlet (), the gas supply line () comprising at least a first line section () which adjoins the gas inlet () and which extends a length (L) along a first extension direction of the gas supply line (), the first extension direction being substantially straight, and wherein the first line section () extends a maximum value of a width (B) that extends transverse to the first extension direction and parallel to the build area (), and wherein the length (L) of the first line section () is at least as large as one half of the maximum value of the width (B) and wherein the first line section () further comprises a first subsection () that is arranged at a distance from the gas inlet () and which comprises at least a first flow conditioning unit () in addition to a wall of the first line section (), the first flow conditioning unit being designed to substantially align the gas stream in the first extension direction. 1. A flow device for an additive manufacturing device for the production of a three-dimensional object by layer-wise selective solidification of a building material in a build area , the flow device comprising:a process chamber,a gas supply device for generating a gas stream in the additive manufacturing device,at least one gas inlet for introducing the gas stream into the process chamber and at least one gas outlet for directing the gas stream out of the process ...

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Номер записи: 31
13-01-2022 дата публикации

WORKPIECE SUPPORT SYSTEM

Номер: US20220009166A1
Автор: DIEHR Andreas
Принадлежит: BigRep GmbH

A workpiece support system for an additive manufacturing device comprises a workpiece support and a motion system, wherein the workpiece support being connected to the motion system such that it can be detached tool-fee. 1. A workpiece support system for an additive manufacturing device comprising: a workpiece support and a motion system , wherein the workpiece support is connected with the motion system and the connection is tool-free releasable.2. The workpiece support system according to claim 1 , wherein the motion system comprises a telescopic system.3. The workpiece support system according to claim 1 , wherein the motion system moves the workpiece support from a processing position into a travel position.4. The workpiece support system according to claim 1 , wherein the workpiece support is held by form fit to the motion system and/or in a processing position.5. The workpiece support system according to claim 4 , wherein the workpiece support is held by gravity to the motion system and/or in a processing position.6. The workpiece support system according to claim 1 , wherein the workpiece support further comprises a heating.7. The workpiece support system according to claim 1 , wherein the workpiece support is held at multiple points to the motion system and/or in a processing position claim 1 , and wherein only one of said point is a connection free of play.8. The workpiece support system according to claim 1 , further comprising an electrical connection between the workpiece support and the motion system.9. The workpiece support system according to claim 1 , wherein the workpiece support further comprises an identification unit.10. The workpiece support system according to claim 1 , wherein the workpiece support further comprises reception points.11. An additive manufacturing device comprising a workpiece support system according to and a door claim 1 , wherein the motion system can move the workpiece support through the opened door from the inside space of ...

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Номер записи: 32
13-01-2022 дата публикации

ATTACHMENTS FOR OPTICAL SHAPING APPARATUS

Номер: US20220009168A1
Автор: NIREI Shunsuke, OSHIMA Eiji
Принадлежит:

The present invention provides an attachment for stereolithography apparatus enabling manufacturing of patterns of various sizes. The attachment for stereolithography apparatus includes: a base portion detachable to a manufacturing table of a stereolithography apparatus; placement platform pillars through provided on the base portion ; and a sheet placement platform supported by the placement platform pillars through . The base portion has a first opening configured to allow the light beam from the optical scanning section to pass through, and the sheet placement platform has a second opening configured to allow the light beam from the optical scanning section to pass through. The placement platform pillars through support the sheet placement platform in a position causing a distance from the optical scanning section of the stereolithography apparatus to the sheet placement platform to be longer than a distance from the optical scanning section to the manufacturing table. 1. An attachment for stereolithography apparatus , being fixed in a position away from a manufacturing table and detachable to a stereolithography apparatus to form a pattern by irradiating a pattern forming sheet with a light beam emitted from an optical scanning section facing the pattern forming sheet across the manufacturing table , the attachment for stereolithography apparatus comprising:a base portion detachable to the manufacturing table;a support mechanism provided on the base portion; anda sheet placement platform supported by the support mechanism, whereinthe base portion has a first opening configured to allow the light beam from the optical scanning section to pass through,the sheet placement platform has a second opening configured to allow the light beam from the optical scanning section to pass through, andthe support mechanism supports the sheet placement platform in a position causing a distance from the optical scanning section to the sheet placement platform to be longer than a ...

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Номер записи: 33
20-01-2022 дата публикации

Method for Modeling Humeral Anatomy and Optimization of Component Design

Номер: US20220015915A1
Автор: Sperling John W.
Принадлежит:

Stemless components and fracture stems for joint arthroplasty, such as shoulder arthroplasty, are disclosed. Also, methods and devices are disclosed for the optimization of shoulder arthroplasty component design through the use of medical imaging data, such as computed tomography scan data. 1. A prosthesis comprising:a central body having a longitudinal axis normal to a reference plane that extends through the central body;at least five fins extending laterally from an outer surface of the central body, the at least five fins being spaced apart around the outer surface of the central body,wherein spacing of the at least five fins is asymmetric in the reference plane.2. The prosthesis of claim 1 , wherein the at least five fins do not create bilateral symmetry of the at least five fins with respect to a longitudinal plane containing the longitudinal axis due to the spacing in the reference plane of the at least five fins.3. The prosthesis of claim 1 , further comprising a sixth fin to form at least six fins extending laterally from the outer surface of the central body claim 1 , the at least six fins being spaced apart around the outer surface of the central body claim 1 , andwherein spacing of the at least six fins is asymmetric in the reference plane.4. The prosthesis of claim 1 , wherein the central body has a first opening and a second opening claim 1 , the first opening corresponding to a proximal side of the central body and the second opening corresponding to a distal side of the central body.5. The prosthesis of claim 1 , wherein at least one of the at least five fins has an inner perimeter and an outer perimeter claim 1 , the inner perimeter and the central body defining at least one window claim 1 , at least one of the at least five fins having the at least one window includes one or more throughholes in a wall defined by the inner perimeter and the outer perimeter of the at least one of the at least five fins having the at least one window.6. The ...

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Номер записи: 34
20-01-2022 дата публикации

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

Номер: US20220016701A1
Автор: Dorini Gianluca
Принадлежит:

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

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Номер записи: 35
12-01-2017 дата публикации

DIRECT FABRICATION OF ALIGNERS FOR PALATE EXPANSION AND OTHER APPLICATIONS

Номер: US20170007367A1
Автор: KAZA Srinivas, Kimura Ryan, Kopelman Avi, Li Chunhua, SHANJANI Yaser
Принадлежит:

Systems, methods, and devices for producing appliances for expansion of the palate of a patient are provided. A palate expanding orthodontic appliance comprises a teeth engagement portion comprising a plurality of teeth engagement structures and a force generating portion coupled to the teeth engagement portion and configured to apply force to cause the patient's palate to expand. The orthodontic appliances can be designed according to the specifications provided herein and manufactured using direct fabrication methods. 1. A directly fabricated orthodontic appliance to expand a palate of a patient , the appliance comprising:a teeth engagement portion comprising a plurality of teeth engagement structures;a force generating portion coupled to the teeth engagement portion, wherein the force generating portion comprises a hydratable polymer configured to expand when contacting saliva of the patient.2. The orthodontic appliance as in claim 1 , wherein the force generating portion is shaped to apply a palate-expanding force to the lateral sides of the palate of the patient when worn.3. The orthodontic appliance as in claim 1 , wherein the force generating portion is configured to apply a palate-expanding force to the teeth engagement portion when worn claim 1 , thereby applying a palate expanding force to the teeth of the patient.4. The orthodontic appliance as in claim 1 , wherein the force generating portion is shaped to provide a gap between the top of the force generating portion and the palate when worn.5. The orthodontic appliance as in claim 1 , wherein the teeth engagement portion and the force generating portion comprise similar polymers with different amounts of crosslinking claim 1 , the force generating portion comprising less crosslinking than the teeth engagement portion.67.-. (canceled)8. A directly fabricated appliance to expand a palate of a patient claim 1 , comprising:a teeth engagement component comprising a plurality of teeth receiving structures and ...

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Номер записи: 36
20-01-2022 дата публикации

METHOD AND SYSTEM OF CREATING A REPLICA OF AN ANATOMICAL STRUCTURE

Номер: US20220020292A1
Автор: "DANDREA Philip V.", ASHLEY David H., BARLOW Anthony A., JR. Steven A., SHUBIN
Принадлежит:

Creating a replica of an anatomical structure. In one embodiments a method includes: accepting pictures of the anatomical structure of a subject; creating an object file that contains an initial model of an outside surface of the anatomical structure; cutting the initial model to a predetermined exterior shape circumscribing the anatomical structure to create a positive model; creating a negative model from the positive model; placing a stem tool object on an outside surface of the negative model in relationship to an orifice, thereby creating a final negative model; placing a zeroing and angling object to align the negative model to a predetermined angle; placing a base tool object by coupling the base tool object to the outside surface; printing, by way of a three-dimensional printer, the final negative model to create a negative mold; and casting the replica of the anatomical structure using the negative mold. 1. A method of creating a replica of an anatomical structure , comprising:accepting, by a first computer system, a plurality of pictures of the anatomical structure of a subject, each picture of the plurality of pictures from a distinct viewing angle relative to the anatomical structure;creating, by the first computer system, an object file that contains an initial model of an outside surface of the anatomical structure;cutting, by the first computer system, the initial model to a predetermined exterior shape circumscribing the anatomical structure, the cutting creates a positive model of the anatomical structure within the predetermined exterior shape;creating, by the first computer system, a negative model of the anatomical structure from the positive model;placing, by the first computer system, a stem tool object on an outside surface of the negative model in relationship to an orifice of the anatomical structure;placing, by the first computer system, a zeroing object and angling object to align the negative model to a predetermined angle;placing, by the ...

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Номер записи: 37
20-01-2022 дата публикации

Applications, Methods and Systems for a Laser Deliver Addressable Array

Номер: US20220021183A1
Автор: David Hill, Jean Michel Pelaprat, Mark S. Zediker, Mathew Finuf, Matthew Silva Sa
Принадлежит: Nuburu Inc

There is provided assemblies for combining a group of laser sources into a combined laser beam. There is further provided a blue diode laser array that combines the laser beams from an assembly of blue laser diodes. There are provided laser processing operations and applications using the combined blue laser beams from the laser diode arrays and modules.

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Номер записи: 38
12-01-2017 дата публикации

INDEXING CART FOR THREE-DIMENSIONAL OBJECT PRINTING

Номер: US20170008237A1
Автор: Fess Donald R., Leighton Roger G., SOKOLOWSKI PIOTR
Принадлежит:

A mobile cart for a three-dimensional object printing system includes a mechanism that enables vertical movement of the platen with reference to ejector heads in the system. The mobile cart includes a pair of links at each end of a cart that pivotally connect a member positioned between the cart and the platen to the cart and the platen. An actuator is configured to laterally move the member bi-directionally and along an axis that is orthogonal to the member. This movement of the member pivots the links to raise and lower the platen depending on the direction in which the member is urged by the actuator. 1. A cart that moves through a three-dimensional object printing system comprising:a first platform configured to move along a track of the printing system;a second platform that has a planar upper surface parallel to the track;a member positioned between the first platform and the second platform;a plurality of first pivoting members, one end of each pivoting member in the plurality of first pivoting members being connected to the first platform and another end of each pivoting member in the plurality of first pivoting members being connected to the member, the plurality of first pivoting members being configured to pivot and transform lateral motion of the member into motion of the member along an axis that is normal to the planar upper surface;a plurality of second pivoting members, one end of each pivoting member in the plurality of second pivoting members being connected to the member and another end of each second pivoting member being connected to the second platform, the plurality of second pivoting members being configured to pivot and transform lateral motion of the member and motion of the member along the axis normal to the parallel upper surface into motion of the second platform along the axis normal to the planar upper surface; andan actuator positioned on the first platform and operable to laterally move the member bi-directionally to move the second ...

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Номер записи: 39
14-01-2016 дата публикации

Fluted additive manufacturing deposition head design

Номер: US20160008887A1
Автор: Brandon David Ribic, Johnny D. Grubbs, Pavlo Earle, Quinlan Yee Shuck
Принадлежит: Rolls Royce Corp

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

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Номер записи: 40
14-01-2016 дата публикации

Apparatus and method for producing work pieces having a tailored microstructure

Номер: US20160008922A1
Автор: Dieter Schwarze
Принадлежит: Slm Ssolutions Group AG

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

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Номер записи: 41
14-01-2016 дата публикации

THREE-DIMENSIONAL PRINTER

Номер: US20160009028A1
Автор: Hartmann Anders, Tjellesen Frederik
Принадлежит: BLUEPRINTER APS

A printer head for a thermal printer for building a three-dimensional model by sequential deposition of a plurality of cross-sectional layers, the thermal print head being movable relative to a material bed over a deposited layer. A protective sheet might be disposed between the thermal print head and deposited layer in a thermal printer according to the invention. Temperature control of the material bed to prevent warping of the model is provided by an independently heatable cover in contact with the surface of the material bed. The thermal print head further comprises a cooling element. 1. A thermal print head for a printer for building a three-dimensional model by sequential deposition of a plurality of cross-sectional layers , the print head comprising an array of selectively activatable heating elements arranged to transfer thermal energy by conduction to heat-treat a selectable area of green material in the deposited layer , wherein the thermal print head further comprises a cooling element.2. A thermal print head according to claim 1 , wherein the thermal head comprises a housing provided with outer walls claim 1 , which outer walls of the housing define the proportion/extent of the housing.3. A thermal print head according to claim 2 , wherein one or more cooling elements are positioned in thermal communication with the outer wall of the housing of the thermal head.4. A thermal print head according to claim 2 , wherein at least one cooling element is positioned in thermal communication with an outer upper wall of the housing.5. A thermal print head according to claim 2 , wherein the cooling element comprises a channel through which channel a coolant flows during operation.6. A thermal print head according to claim 2 , wherein the cooling element comprises a thermoelectric cooler.7. A thermal print head according to claim 2 , wherein the cooling element comprises a passive cooling element.8. A thermal print head according to claim 2 , wherein the cooling ...

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Номер записи: 42
11-01-2018 дата публикации

THREE-DIMENSIONAL MODELING DEVICE

Номер: US20180009064A1
Автор: MIYASHITA Takeshi
Принадлежит:

A three-dimensional modeling device includes a modeling section supplied with a material including a metal powder, a laser source adapted to emit a laser used to sinter or melt the metal powder, and an optical component through which the laser emitted from the laser source passes in the midway to the material on the modeling section. The optical component is provided with a first area, which faces to the modeling section, and through which the laser passes, and a second area higher in surface free energy than the first area is disposed in at least a part of a periphery of the first area. 1. A three-dimensional modeling device comprising:a modeling section supplied with a material including a metal powder;a laser source adapted to emit a laser used to sinter or melt the metal powder; andan optical component through which the laser emitted from the laser source passes in the midway to the material on the modeling section,wherein the optical component is provided with a first area, which faces to the modeling section, and through which the laser passes, anda second area higher in surface free energy than the first area is disposed in at least a part of a periphery of the first area.2. The three-dimensional modeling device according to claim 1 , whereinthe first area is provided with liquid repellency.3. The three-dimensional modeling device according to claim 1 , whereinthe second area is provided with lyophilicity.4. The three-dimensional modeling device according to claim 1 , whereinthe first area is provided with a moth-eye structure.5. The three-dimensional modeling device according to claim 1 , further comprising:a removing section adapted to remove a particle adhering to the first area. The present invention relates to a three-dimensional modeling device.In the past, there has been known a three-dimensional modeling device which irradiates metal powder with a laser to sinter, or melt and then solidify the metal powder to thereby manufacture a three-dimensional ...

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Номер записи: 43
27-01-2022 дата публикации

Material Delivery Device, Three-Dimensional Shaping Device, And Injection Molding Device

Номер: US20220024097A1
Автор: MARUYAMA Hidenobu, MIYASHITA Daichi, Tanaka Yasuyuki
Принадлежит:

A material delivery device includes: a plasticizing unit including a screw; a nozzle through which a plasticized material is delivered to outside; a communication flow path provided between the screw and the nozzle and through which the plasticized material flows; a pressure detection unit including a first cylinder coupled to the communication flow path, a rod inserted into the first cylinder, and a pressure sensor disposed with the rod separated from the communication flow path, in which the rod is configured to receive a pressure of the plasticized material in the communication flow path at a first end surface facing the communication flow path, and transmit the pressure to the pressure sensor through a second end surface opposite to the first end surface; and a rotation regulation mechanism configured to regulate rotation of the rod about a central axis along a longitudinal direction of the rod by engaging a first engaging portion provided on a side surface of the rod and a second engaging portion to be engaged with the first engaging portion. 1. A material delivery device , comprising:a plasticizing unit including a screw and configured to plasticize a material by rotation of the screw to produce a plasticized material;a nozzle through which the plasticized material is delivered to outside;a communication flow path provided between the screw and the nozzle and through which the plasticized material flows;a pressure detection unit including a first cylinder coupled to the communication flow path, a rod inserted into the first cylinder, and a pressure sensor disposed with the rod separated from the communication flow path, in which the rod has a first end surface facing the communication flow path and a second end surface opposite to the first end surface in a longitudinal direction of the rod, and configured to receive a pressure of the plasticized material in the communication flow path at the first end surface and transmit the pressure to the pressure sensor ...

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Номер записи: 44
11-01-2018 дата публикации

HAND-HELD THREE-DIMENSIONAL DRAWING DEVICE

Номер: US20180009161A1
Автор: BOGUE Maxwell, COWEN Daniel, Walker Thomas
Принадлежит:

A hand-held three-dimensional drawing device can include an anti-rotation mechanism that can restrict rotation of a filament moving through the device. The anti-rotation mechanism can have a filament-engaging component in a passage of the anti-rotation mechanism and positioned to engage and restrict rotation a filament extending through the passage. The drawing device can also include a moveable member to control an operation of the drawing device. The moveable member can include a rotatable control mechanism including a portion of an outer profile of a housing of the device. Finally, the drawing device can also include a cover member comprising a portion of an outer profile of housing of the device and positioned adjacent to an actuator to control an operation of the device. 1. An extrusion device comprising:an inlet, an outlet, and a longitudinal axis between therebetween;a filament travel path extending along the longitudinal axis;a drive mechanism disposed along the travel path for engaging and urging a filament along the travel path;an anti-rotation mechanism disposed along the travel path adjacent to the drive mechanism, the anti-rotation mechanism comprising a filament-engaging component having a contacting portion positioned adjacent to the travel path to restrict rotation of a filament about the travel path as the filament moves by the anti-rotation mechanism; anda heater disposed between the drive mechanism and the outlet to receive the filament from the drive mechanism.2. The device of claim 1 , wherein the anti-rotation mechanism comprises a tubular body claim 1 , the contacting portion comprising a radial protrusion extending radially toward the travel path to contact the filament and restrict rotation of a filament relative to the anti-rotation mechanism as the filament moves by the anti-rotation mechanism.3. The device of claim 1 , wherein the contacting portion tapers in cross-section from the filament-engaging component toward the travel path.4. The ...

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Номер записи: 45
11-01-2018 дата публикации

ADDITIVE MANUFACTURING APPARATUS

Номер: US20180009179A1
Автор: Kanda Torahiko, SAKAMAKI Motohiko
Принадлежит: FUJI XEROX CO., LTD.

An additive manufacturing apparatus includes a table, an ejecting unit that faces the table and ejects photocurable droplets toward the table, a light-applying unit that applies light to and cures the droplets on the table, a moving unit that moves the table back and forth along with the light-applying unit and relative to the ejecting unit, and a controller that controls the ejecting unit, the light-applying unit, and the moving unit such that the ejecting unit ejects droplets toward the table while the table is moved relative to the ejecting unit; the light-applying unit applies, when a direction of relative movement of the table is changed, light to the droplets that have moved together with the table out of an area where the table faces the ejecting unit; and a three-dimensional object is formed as a stack of layers composed of the droplets that have been cured. 1. An additive manufacturing apparatus comprising:a table;an ejecting unit that faces the table and ejects photocurable droplets toward the table;a light-applying unit that applies light to and cures the droplets ejected from the ejecting unit and landed on the table;a moving unit that moves the table back and forth along with the light-applying unit and relative to the ejecting unit; anda controller that controls the ejecting unit, the light-applying unit, and the moving unit such that the ejecting unit ejects droplets and makes the droplets land on the table while the table is moved relative to the ejecting unit; the light-applying unit applies, when a direction of relative movement of the table is changed, light to the droplets that have moved together with the table out of an area where the table faces the ejecting unit; and a three-dimensional object is formed as a stack of layers composed of the droplets that have been cured.2. The additive manufacturing apparatus according to claim 1 ,wherein the ejecting unit has an ejection port from which the droplets are ejected, andwherein the additive ...

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Номер записи: 46
14-01-2021 дата публикации

METHODS AND SYSTEMS FOR CONDENSING A VAPOR ON A POWDER BED

Номер: US20210008617A1
Автор: Fontana Richard Remo, Go Jamison, Goldblatt Michael, Hoisington Paul A., HUDELSON George, JOHNSON JOSEPH, LOCKWOOD Cassia, Sachs Emanuel M.
Принадлежит: Desktop Metal, Inc.

A method is provided for printing a three-dimensional object. The method comprises, depositing a layer of metal powder onto a powder bed of a three-dimensional printer. A liquid is heated to generate a vapor. The liquid is removed from the vapor to dry the vapor by heating the vapor above a condensation temperature of the liquid. The dry vapor is deposited onto the powder bed of the three-dimensional printer. 1. A method for printing a three-dimensional object , the method comprising:depositing a layer of metal powder onto a powder bed of a three-dimensional printer;heating a liquid to generate a vapor;removing the liquid from the vapor to dry the vapor by heating the vapor above a condensation temperature of the liquid; anddepositing the dry vapor onto the powder bed of the three-dimensional printer.2. The method of claim 1 , further comprising controlling a flow of the vapor prior to depositing the vapor.3. The method of claim 1 , wherein the dry vapor is flowed through a branching distribution system prior to being deposited onto the powder bed.4. The method of claim 1 , wherein the dry vapor is flowed through a plenum space prior to being deposited onto the powder bed.5. The method of claim 1 , wherein the liquid is water.6. The method of claim 1 , further comprising introducing a carrier gas to the dry vapor.7. The method of claim 6 , wherein the carrier gas is at least one of nitrogen or air.8. The method of claim 1 , further comprising:depositing a subsequent layer of metal powder onto the powder bed of the three-dimensional printer; anddepositing the dry vapor onto the powder bed of the three-dimensional printer.9. A system for printing a three-dimensional object claim 1 , the system comprising:a powder bed configured to receive one or more layers of metal powder;a vapor generator configured to heat a liquid to form a vapor;a drying subsystem configured to heat the vapor to remove the liquid from the vapor to dry the vapor; anda vapor deposition subsystem ...

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Номер записи: 47
14-01-2021 дата публикации

LONG AND HIGH RESOLUTION STRUCTURES FORMED BY ADDITIVE MANUFACTURING TECHNIQUES

Номер: US20210008623A1
Автор: Berdichevsky Eugene, DeMuth James A., Fees Heiner, Kamshad Kourosh, Leard Francis L., Toomre Erik
Принадлежит:

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

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Номер записи: 48
14-01-2021 дата публикации

Apparatus for Generating Electron Radiation and Three-Dimensional Printing Apparatus

Номер: US20210008656A1
Автор: Lissotschenko Vitalij
Принадлежит:

An apparatus for generating electron radiation comprises: an elongated, wire-shaped hot cathode to emit electron radiation having an elongated, line-shaped cross section perpendicular to a direction of propagation of the electron radiation; a cathode electrode; an anode electrode with an opening through which the electron radiation emitted from the hot cathode can pass, wherein a voltage applied between the cathode electrode and the anode electrode accelerates electrons emitted from the hot cathode; and a deflecting unit to deflect the electron radiation downstream of the opening of the anode electrode, wherein a cross section of the electron radiation perpendicular to the direction of propagation is changed by the deflecting unit to decease a longitudinal extent of the electron radiation and to increase a transverse extent of the electron radiation such that longitudinal and transverse extents of the electron radiation perpendicular to the direction of propagation are about the same size. 1. An apparatus for generating electron radiation , the apparatus comprising:an elongated, wire-shaped hot cathode to emit electron radiation having an elongated, line-shaped cross section perpendicular to a direction of propagation of the electron radiation due to an elongated shape of the hot cathode, where an extent of the hot cathode is significantly greater in a longitudinal direction than in a transverse direction;a cathode electrode;an anode electrode with an opening through which the electron radiation emitted from the hot cathode can pass, wherein a voltage applied between the cathode electrode and the anode electrode accelerates electrons emitted from the hot cathode; anda deflecting unit to deflect the electron radiation downstream of the opening of the anode electrode, wherein a cross section of the electron radiation perpendicular to the direction of propagation is changed by the deflecting unit to decease a longitudinal extent of the electron radiation and to ...

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Номер записи: 49
14-01-2021 дата публикации

DEVICE FOR APPLYING LAYERS OF PASTE FOR A MACHINE FOR MANUFACTURING CERAMIC PIECES BY STEREOLITHOGRAPHY

Номер: US20210008757A1
Автор: CHAPUT Christophe, GAIGNON Richard, NGUYEN Marc, ROUSSELET Nicolas
Принадлежит:

A device for applying a paste in layers for a machine for manufacturing ceramic pieces by stereolithography, the device including a blade holder configured to be moved in translation; a blade element made of one of a blade and at least two parallel blades, the blade element being arranged on the blade holder and being configured to scrape, during the translational movement of the blade holder, a mass of paste brought in front of the blade element in order to spread the mass of paste into a layer; and a paste distributing component arranged in front of the blade element, wherein the paste distributing component consists of a shield for pushing the paste, the shield being formed of an elongate part including a vertical portion in assembled position on the device, the vertical portion of the shield being secured to the blade element while leaving the lower border region of the blade element free in order to allow the scraping of the paste, an upper portion of the elongated part being further folded in the direction of forward movement of the blade holder in order to form an overhanging portion, the lower face of the overhang constituting with the free face of the vertical portion of the pushing shield a containment area for the paste for the distribution and spreading of the paste. 2- The device according to claim 1 , wherein the free face of the vertical portion of the pushing shield is joined with the lower face of the overhanging portion by a curved region whose concavity faces the containment area.3- The device according to claim 1 , wherein the free edge region of the lower face of the overhanging portion of the pushing shield has a return toward the containment area to re-direct the paste downward during forward movement of the blade holder without closing the opening of the pushing shield.4- The device according to claim 1 , wherein the free face of the vertical portion of the pushing shield is one of vertical claim 1 , curved with a concavity facing the ...

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Номер записи: 50
14-01-2021 дата публикации

AUTOMATED DEVICES, SYSTEMS, AND METHODS FOR THE FABRICATION OF TISSUE

Номер: US20210008788A1
Автор: Damle Samir, Gorgen Vivian, Joshi Vaidehi, JR. Stephen, Lin Frank, Murphy Keith, Pentoney, Platt Clay, PRESNELL Sharon C., Rapoport Harry Scott
Принадлежит: ORGANOVO, INC.

Described herein are improvements to bioprinting technology that facilitate automation of tissue and organ fabrication processes. 120.-. (canceled)21. A bioprinter comprising:(a) a printer head comprising at least one cartridge and at least one deposition orifice, the cartridge comprising contents from a bio-ink, a support material, or a combination thereof;(b) a receiving surface for receiving the contents from the printer head; (1) a tip triangulation sensor, fixed to the receiving surface, for determining a position of the deposition orifice, the tip triangulation sensor comprising a first laser and a first sensor configured to detect light from the first laser;', '(2) a surface triangulation sensor, fixed to the printer head, for determining a position of a target print surface, the surface triangulation sensor comprising a second laser and a second sensor configured to detect light from the second laser; and, '(c) a three-dimensional calibration system comprising (1) calculate one or more print height changes during bioprinting based on (a) the position of the deposition orifice determined from the tip triangulation sensor and (b) the position of the target print surface determined from the surface triangulation sensor, the print height is a distance between the deposition orifice and the target print surface; and', '(2) adjust for any print height changes during bioprinting by adjusting one or more bioprinting parameters., '(d) a processor coupled to the three-dimensional calibration system and configured to22. The bioprinter of claim 21 , wherein the bioprinting parameters are selected from the group consisting of a deposition rate claim 21 , a relative travel speed of the printer head claim 21 , the print height claim 21 , a cell type claim 21 , a deposition order claim 21 , a deposition location claim 21 , and combinations thereof.23. The bioprinter of claim 21 , wherein the print height changes are determined before claim 21 , after claim 21 , or before ...

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Номер записи: 51
14-01-2021 дата публикации

PRECISION MECHANISM FOR POSITIONING LOWER FACE OF ARTICLE AT BUILD PLANE

Номер: US20210008797A1
Автор: Sabo David
Принадлежит:

A three-dimensional printing system includes a vertical support beam, a resin vessel assembly coupled to the vertical support beam and including a resin vessel, and a support tray positioning system. The support tray positioning system includes a support tray elevator, a lead screw nut, a motorized lead screw, an intermediate nut, and a linear bearing. The motorized lead screw engages the lead screw nut to raise and lower the support tray elevator. The linear bearing constrains motion of the support tray elevator to vertical motion. The support tray elevator, the intermediate nut, and the lead screw nut interlock to constrain rotational motion of the lead screw nut with respect to the support tray elevator while allowing for two dimensional lateral motion of the lead screw nut with respect to the support tray elevator to accommodate mechanical tolerances of the lead screw with respect to the linear bearing. 1. A three-dimensional printing system for fabricating a three-dimensional article comprising:a vertical support beam;a resin vessel assembly coupled to the vertical support beam and including a resin vessel; [ a rear portion that is proximate to the vertical support beam and having a lower facing surface; and', 'a pair of arms that extend from the rear portion in a forward direction, the pair of arms configured to support a support tray above the resin vessel;, 'a support tray elevator including, 'a lead screw nut coupled to the lower facing surface of the rear portion and defining a central threaded opening;', 'a motorized lead screw having a vertical axis and received into the central threaded opening of the lead screw nut, rotation of the motorized lead screw about the vertical axis raises and lowers the lead screw nut together with the support tray elevator;', 'an intermediate nut sandwiched between the lower facing surface of the rear portion and the lead screw nut; and', 'a linear bearing that slides along the main vertical support beam along the vertical ...

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Номер записи: 52
14-01-2021 дата публикации

ENERGY EMITTING APPARATUSES FOR BUILD MATERIAL LAYERS

Номер: US20210008798A1
Автор: BARNES Arthur H., Fredrickson Daniel, Winters William
Принадлежит: Hewlett-Packard Development Company, L.P.

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

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Номер записи: 53
14-01-2021 дата публикации

CARRIAGES FOR 3D PRINTERS

Номер: US20210008801A1
Автор: DE SANTIAGO DOMINGUEZ Sergio, GARCIA Pedro, ZAMORANO Juan Manuel
Принадлежит: Hewlett-Packard Development Company, L.P.

It is disclosed a system and a carriage for a 3D printing system comprising: an actuator to move the carriage; a position detection mechanism; a collision detection mechanism; and a controller. The controller to control the movement of the carriage and the controller further comprising: a memory wherein a threshold value and a detection area are stored in, the detection area comprising a set of position values of the carriage; an input to receive a position signal from the position detection mechanism and a detection signal from the collision detection mechanism; and an output to issue an alert signal if the detection signal corresponds to a distance below the threshold value and the position signal is within the detection area 2. The 3D printing system according to wherein the system comprises a second threshold value lower than the threshold value and wherein the controller issues the alert signal if the detection signal corresponds to a distance below the second threshold value and the first carriage is in the parking area.3. The 3D printing system according to wherein the tools comprise at least one of: a nozzle claim 1 , a print head claim 1 , a spreader claim 1 , a hopper claim 1 , or a heat generator.4. The 3D printing system claim 1 , according to claim 1 , wherein the obstacle is the second carriage.5. The 3D printing system claim 4 , according to wherein the controller reduces or increases the speed of the first carriage depending on detection signal.6. The 3D printing system claim 1 , according to wherein the first and the second parking area are at least partly coincident.7. The 3D printing system claim 1 , according to claim 1 , wherein the alert signal comprises a stop signal to at least the first carriage and/or the second carriage.8. The 3D printing system claim 1 , according to claim 1 , wherein the threshold value is a predetermined value.9. The 3D printing system claim 1 , according to claim 1 , wherein the threshold value is a value selectable by ...

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Номер записи: 54
10-01-2019 дата публикации

DEVICE FOR ADDITIVE MANUFACTURING BY SPRAYING AND FUSION OF POWDER

Номер: US20190009288A1
Автор: Carabin Gilles, Hascoet Jean-Yves
Принадлежит:

A nozzle for the additive manufacturing by spraying and fusion of powder along a hollow tapered stream. The nozzle includes an outer cone, an inner cone, and an intermediate cone. The powder is sprayed into the tapered annular space between the inner surface of the outer cone and the outer surface of the intermediate cone. The outer cone includes two portions detachably assembled along the axis of the cone by an assembler. 14-. (canceled)5. A nozzle for additive manufacturing by spraying and fusion of powder along a hollow tapered stream , comprising: a first portion comprising a ring comprising an inner tapered bore and a centring device coaxial with the inner tapered bore; and', 'a second portion detachably assembled to the first portion along an axis of the outer cone by an assembler, centered on the centring device;, 'an outer cone comprisesan inner cone;an intermediate cone; andwherein the powder being sprayed into a tapered annular space between an inner surface of the outer cone and an outer surface of the intermediate cone;wherein the second portion of the outer cone comprises a fusible portion configured to break or be deformed under a predetermined force without damaging the first portion.6. The nozzle according to claim 5 , wherein the first portion and the second portion of the outer cone are made of different materials.7. The nozzle according to claim 5 , wherein a conicity of an inner tapered bore of the second portion of the outer cone is different from a conicity of the inner tapered bore of the first portion.8. The nozzle according to claim 5 , further comprising a detector configured to detect a rupture of the fusible portion of the second portion.9. The nozzle according to claim 5 , wherein the assembler is a nut. The invention relates to an additive manufacturing device by spraying and fusion of powder. The invention more particularly relates to a nozzle for the spraying and the fusion by laser of a metal powder for the implementation of the so- ...

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Номер записи: 55
10-01-2019 дата публикации

ADDITIVE MANUFACTURING FACILITY WITH SUCCESSIVE NESTED CONFINEMENT CHAMBERS

Номер: US20190009334A1
Автор: EFFERNELLI ALBIN, GEAY CHRISTIAN, Pialot Frédéric, WALRAND GILLES
Принадлежит:

An additive manufacturing facility operating in an automated and contained manner. The facility includes a containment chamber inside which a plurality of additive manufacturing machines is installed, each machine comprising a manufacturing chamber, inside the containment chamber, a supply device and a supply circuit for supplying the various machines of the facility with an additive manufacturing powder, a conveying device for conveying additive manufacturing container/tray assemblies comprising at least one conveying chamber circulating between the various machines, and (4) a cleaning device comprising at least one cleaning chamber for cleaning, in an automated and contained manner, the additive manufacturing trays in the cleaning chamber. 1. An additive manufacturing facility operating in an automated and contained manner , the facility comprising:a containment chamber inside which is installed a plurality of additive manufacturing machines, each machine comprising a manufacturing chamber and making it possible to manufacture parts in an automated and contained manner inside the chamber;inside the containment chamber, a supply device and a supply circuit for supplying, in an automated and contained manner, the plurality of additive manufacturing machines with an additive manufacturing powder ready to be used in additive manufacturing;inside the containment chamber, a conveying device for conveying additive manufacturing container/tray assemblies or additive manufacturing trays, the conveying device comprising at least one conveying chamber circulating between the plurality of additive manufacturing machines in order to supply, in an automated and contained manner, the plurality of additive manufacturing machines with clean assemblies or trays and to retrieve, in an automated and contained manner, the assemblies or trays that have been used by the plurality of additive manufacturing machines along with the manufactured parts; andinside the containment chamber, a ...

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Номер записи: 56
10-01-2019 дата публикации

MOBILE AND SECURED ADDITIVE MANUFACTURING INSTALLATION

Номер: US20190009336A1
Автор: NICAISE JEAN-PIERRE
Принадлежит:

A mobile additive manufacturing installation () comprises a main self-supporting frame, a main manufacturing housing () closed in leaktight fashion, at least one main additive manufacturing machine (M) installed in the main manufacturing housing, a main inerting device (), a main circulation path () in the main manufacturing housing (), a main airlock (), and a main device () for treatment of the air circulating inside the main manufacturing housing (). The main treatment device () makes it possible to supply the inside of the main manufacturing housing () with air withdrawn outside the installation, to withdraw the air present in the main manufacturing housing () and in the main airlock (), and to manage the pressure of the air present in the main manufacturing housing () and in the main airlock (). 110.-. (canceled)11. A mobile additive manufacturing installation comprising:a main self-supporting frame which renders the installation transportable by road;a main manufacturing housing supported by the main self-supporting frame and closed in a leaktight manner by panels fixed to the main self-supporting frame;a main additive manufacturing machine installed inside the main manufacturing housing, the main additive manufacturing machine comprising a manufacturing chamber inside which is carried out an additive manufacturing process consisting of depositing additive manufacturing powder and fusing grains of the powder using a source of energy or of heat;a main inerting device configured to supply the manufacturing chamber of the main additive manufacturing machine with an inert gas and to capture the inert gas contaminated by fumes resulting from the additive manufacturing process inside the manufacturing chamber;a main circulation path provided in the main manufacturing housing along which an operator can circulate around the main additive manufacturing machine;a main airlock for entry and exit of at least one operator, the main airlock being supported by the main self ...

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Номер записи: 57
10-01-2019 дата публикации

MOBILE MULTI-HOUSING ADDITIVE MANUFACTURING INSTALLATION

Номер: US20190009337A1
Автор: NICAISE JEAN-PIERRE
Принадлежит:

A mobile additive manufacturing installation () comprises a main self-supporting frame (), a main manufacturing housing (), at least one main additive manufacturing machine (M) installed inside the main manufacturing housing, a main inerting device (), a main circulation path and a main airlock (). The mobile installation also comprises at least one auxiliary manufacturing housing connected to the main manufacturing housing (), at least one auxiliary additive manufacturing machine (M M) being installed in this auxiliary manufacturing housing, an auxiliary self-supporting frame () supporting this auxiliary manufacturing housing and independent of the main self-supporting frame (), and an auxiliary circulation path () being provided in the auxiliary manufacturing housing. 113-. (canceled)14. A mobile additive manufacturing installation comprising:a main self-supporting frame which renders the installation transportable by road;a main manufacturing housing supported by the main self-supporting frame and closed in a leaktight manner by panels fixed to the main self-supporting frame;a main additive manufacturing machine installed inside the main manufacturing housing, the main additive manufacturing machine comprising a manufacturing chamber inside which is carried out an additive manufacturing process consisting of depositing additive manufacturing powder and fusing grains of the powder using a source of energy or of heat;a main inerting device configured to supply the manufacturing chamber of the main additive manufacturing machine with an inert gas and to capture the inert gas contaminated by fumes resulting from the additive manufacturing process inside the manufacturing chamber;a main circulation path provided in the main manufacturing housing along which an operator can circulate around the main additive manufacturing machine;a main airlock for entry and exit of at least one operator, the main airlock being supported by the main self-supporting frame and closed in ...

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Номер записи: 58
10-01-2019 дата публикации

CONTINUOUS ADDITIVE MANUFACTURING APPARATUS

Номер: US20190009459A1
Автор: Behnke Jesse R., BENSON, Crestik Lucas D., FRANKE Carsten, Huffman Alexander J., JR. Olester, Smith Kenneth L., Smithson Robert L.W.
Принадлежит:

Continuous additive manufacturing apparatuses are provided. An apparatus includes an actinic radiation-transparent substrate having a major surface and an irradiation source configured to direct actinic radiation through the actinic radiation-transparent substrate at predetermined dosages at predetermined locations. The apparatus further includes a means for depositing a composition onto the major surface of the actinic radiation-transparent substrate and a means for conveying the actinic radiation-transparent substrate or the irradiation source with respect to each other. 1. An apparatus comprising:an actinic radiation-transparent substrate having a major surface;an irradiation source configured to direct actinic radiation through the actinic radiation-transparent substrate at more than one predetermined dosage at more than one predetermined location;a means for depositing a composition onto the major surface of the actinic radiation-transparent substrate, wherein the substrate is in the form of a cylinder and the means for depositing comprises rotating the cylinder through a volume of the composition to apply the composition on the substrate; anda means for conveying the actinic radiation-transparent substrate or the irradiation source with respect to each other.2. The apparatus of claim 1 , further comprising an air knife configured to remove a composition from the substrate claim 1 , the irradiation source disposed between the means for depositing and the air knife.3. The apparatus of claim 1 , wherein the substrate comprises a release material coated on the substrate.4. The apparatus of claim 1 , further comprising a second substrate.5. The apparatus of claim 4 , wherein the second substrate comprises a structured sheet.6. The apparatus of claim 1 , further comprising a robot configured to remove a plurality of adhesives from the substrate.79-. (canceled)10. The apparatus of claim 1 , wherein the substrate comprises glass or a polymeric material.11. The ...

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Номер записи: 59
10-01-2019 дата публикации

NOZZLE ASSEMBLY OF BIOLOGICAL PRINTER AND BIOLOGICAL PRINTER

Номер: US20190009467A1
Автор: LI Yijun, Wang Deming, Wen Xuemin, Zhang Leqing
Принадлежит: REVOTEK CO., LTD.

The present disclosure relates to a bioprinter spray head assembly and a bioprinter, wherein the bioprinter spray head assembly comprises a spray head and an extension rod spaced from the spray head and disposed adjacent to an outlet of the spray head, wherein an elongated flow channel is provided in the extension rod to guide a fluid printing unit serving as a biological printing material in the flow channel to be orientedly sprayed. The bioprinter spray head assembly is configured such that a fluid print unit serving as a biological printing material is orientedly sprayed through the flow channel by providing an extension rod having an elongated flow channel adjacent to the outlet of the spray head. The elongated flow channel can perform an oriented sequence of the fluid printing unit, so as to reduce the possibility of clogging. 1. A bioprinter spray head assembly , comprising a spray head and an extension rod spaced from the spray head and disposed adjacent to an outlet of the spray head , wherein an elongated flow channel is provided in the extension rod to guide a fluid printing unit serving as a biological printing material in the flow channel to be orientedly sprayed.2. The bioprinter spray head assembly according to claim 1 , wherein the flow channel is tapered from its inlet to outlet.3. The bioprinter spray head assembly according to claim 2 , wherein the flow channel has a conical section taken by along a flow direction of the fluid printing unit.4. The bioprinter spray head assembly according to claim 2 , wherein the outlet of the flow channel is sized to be 1-1.5 times the size of the fluid printing unit.5. The bioprinter spray head assembly according to claim 4 , wherein the outlet of the flow channel is sized to be 1.2 times the size of the fluid printing unit.6. The bioprinter spray head assembly according to claim 2 , wherein the inlet of the flow channel is sized to be 2-5 times the size of the fluid printing unit.7. The bioprinter spray head ...

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Номер записи: 60
09-01-2020 дата публикации

SYSTEM AND METHOD FOR FLEXIBLE MANUFACTURING

Номер: US20200009634A1
Автор: FARROW Gregory J., Graham John, NGUYEN Nhan Huu, OSHEL Glenn
Принадлежит:

The system includes a cell framework for defining a manufacturing area. The system includes at least one workplace within the manufacturing area. The system includes at least one manufacturing component within the manufacturing area and configured to be movable along three axes in relation to the at least one workplace. The system includes a conveying mechanism configured to move a part into the at least one workplace to be worked on by the at least one manufacturing component. 1. A system for flexible manufacturing comprising:a cell framework for defining a manufacturing area;at least one workplace within the manufacturing area;at least one manufacturing component within the manufacturing area and configured to be movable along multiple axes in relation to the at least one workplace; anda conveying mechanism configured to move a part into the at least one workplace to be worked on by the at least one manufacturing component.2. The system for flexible manufacturing according to claim 1 , wherein the manufacturing component comprises a press.30. The system for flexible manufacturing according to claim 2 , wherein the press is configured in a -shape with pressing along a horizontal axis.4. The system for flexible manufacturing according to claim 2 , wherein the press comprises a tool exchanger mounted to the press claim 2 , wherein the tool exchanger is configured to allow at least two tools to be alternatively mounted to the press claim 2 , and wherein the tool exchanger is oriented with the press to avow the press to transmit a press force to the tool but not to the tool exchanger.5. The system for flexible manufacturing according to claim 1 , wherein the manufacturing component is movable in relation to the workplace during a manufacturing cycle for accurate positioning.6. The system for flexible manufacturing according to claim 1 , wherein the manufacturing component is movable in relation to the workplace during a manufacturing cycle for multiple operations.7. ...

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Номер записи: 61
09-01-2020 дата публикации

METHOD OF FORMING AN OBJECT USING 3D PRINTING

Номер: US20200009654A1
Автор: Brzezinski Tomek, Gibson Michael A., KELLY MICHAEL
Принадлежит: Desktop Metal, Inc.

A 3D printer includes a build plate providing a surface on which an object is printed. Prior to printing, a sheet is fixed to the surface of the build plate. The sheet is composed of a material that adheres to a binder component of the feedstock used to print the object. During printing, the first layer of the printed object forms a bond with the sheet, which secures the location of the first layer and resists movement of the object during printing. Following printing and the object gaining sufficient rigidity, the object and sheet can be removed together from the printer. The sheet may then be peeled from the object, and the object can undergo debinding and/or sintering to create a finished object. 120-. (canceled)21. A method of forming an object using additive manufacturing , the method comprising:securing a base sheet to a top surface of a build plate of a three-dimensional (3D) printer, wherein an outer perimeter of the base sheet defines a print area;printing a first layer of a build material, including a metal powder and a binder material, in the print area;printing additional layers of the build material above the first layer layer-by-layer, wherein the first layer and the additional layers collectively form the object; andseparating the base sheet and the object,wherein the base sheet includes at least one component that is also included in the binder material, and wherein the at least one component in the base sheet adheres to the at least one component in the binder material.22. The method according to claim 21 , wherein the separating step includes removing the base sheet from the top surface of the build plate claim 21 , and peeling the base sheet from the object.23. The method according to claim 21 , further comprising:de-binding at least a portion of the binder material from the object after separating the base sheet and the object; andsintering the object.24. The method according to claim 21 , wherein the at least one component includes one or more ...

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Номер записи: 62
09-01-2020 дата публикации

SMART HANDLING OF MATERIALS FOR THREE-DIMENSIONAL (3D) PRINTERS

Номер: US20200009791A1
Автор: LAKHANI SHIRIN
Принадлежит:

A mechanism is described for facilitating smart handling of material for 3D printing. A method of embodiments, as described herein, includes facilitating receiving recyclable material through an input bin coupled to the 3D printing apparatus, where the recyclable material represents a first object used at least once. The method may further include disintegrating the recyclable material for recycling into a second object and printing the second object based on the recyclable material and placing the second object into an output bin. 1. A three-dimensional (3D) printing apparatus comprises:one or more processors to:receive recyclable material through an input bin coupled to the 3D printing apparatus, wherein the recyclable material represents a first object used at least once;disintegrate the recyclable material for recycling into a second object; andprinting the second object based on the recyclable material and placing the second object into an output bin.2. The printing apparatus of claim 1 , wherein one or more processors are further to store a portion of the recyclable material that is unnecessary or incapable of being used for the second object claim 1 , wherein the first portion is used for printing other objects.3. The printing apparatus of claim 1 , wherein the one or more processors are further to inject color into the recyclable material such that the second object includes one or more filaments of colors.4. The printing apparatus of claim 1 , wherein the one or more processors are further to repurposed power supply heat energy into the recyclable material such that second object is formed in one or more shapes and one or more textures of the first object.5. The printing apparatus of claim 1 , wherein the first and second objects comprise one or more of household items claim 1 , outdoor items claim 1 , personal items claim 1 , machines claim 1 , military equipment claim 1 , and sporting equipment.6. A method comprises:receiving recyclable material through ...

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Номер записи: 63
27-01-2022 дата публикации

HIGH-POWER DYNAMIC LENS FOR ADDITIVE MANUFACTURING

Номер: US20220026778A1
Автор: ABATE Vito, Deaville Todd
Принадлежит:

A dynamic lens for projecting different output beam shapes upon a target for heating, melting, or otherwise modifying the state of the target material. The dynamic lens includes a first light source of high power laser diodes generating a first light beam onto a lensing array with an LCOS device including a plurality of liquid crystal cells to curve and focus the first light beam into a second light beam forming the output beam shape on the target. A controller generates a control signal corresponding to the output beam shape. A single-point laser projects a third light beam tracing an outline of the output beam shape on the target to more clearly define the edge of the output beam shape. The single-point laser may be an IR fiber laser source scanned or traced by a scanner, such as a galvano scanner, directing the third light beam in two dimensions. 1. A dynamic lens comprising:a first light source generating a first light beam;a lensing array including a plurality of liquid crystal cells each configured to modulate a phase of the first light beam in response to an electrical stimulation;said liquid crystal cells configured to operate in conjunction together to curve and focus said first light beam into a second light beam forming an output beam shape on a target.2. The dynamic lens of claim 1 , wherein said first light source includes a plurality of laser diodes generating said first light beam at a high-power of at least approximately 10 Kw.3. The dynamic lens of claim 1 , wherein said lensing array includes an LCOS device with said array of liquid crystal cells being disposed on a silicon backplate.4. The dynamic lens of claim 3 , wherein said lensing array includes a plurality of LCOS devices.5. The dynamic lens of claim 4 , wherein each of said LCOS devices is configured to focus said second light beam onto a corresponding region of the target.6. The dynamic lens of claim 4 , wherein two or more of said LCOS devices in said lensing array are each configured to ...

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Номер записи: 64
09-01-2020 дата публикации

DEVICE AND METHOD FOR THE DEPOSITION OF PARTICLES ON A TARGET

Номер: US20200009877A1
Автор: Guillemot Fabien, Vaucelle Romain, Viellerobe Bertrand
Принадлежит:

A device for deposition of particles on a target from a transparent slide having a film formed by a fluid containing suspended particles, by locally exciting the film using a laser, includes means for observing the local excitation region. The observation means comprise a sensor and a light source, the optical axes of which are substantially shared in a space between an optical splitter and that the film. The optical beam of the imaging system and the optical beam of the laser are coaxially arranged in the space between the controlled optical deflection means and the film. The device comprises a first focusing optical unit arranged between the controlled optical deflection means and the film. The device comprises a second image-combining optical unit positioned between the sensor and the splitter, the sensor being positioned in the focal plane of the second optical unit. 115.-. (canceled)16. A system for depositing particles on a target , comprising:a transparent slide for supporting a fluid film containing the particles in suspension;a laser configured to emit a laser beam onto a localized area of the fluid film;a deflection device configured to selectively deflect the laser beam onto selected localized areas of the fluid film;an imaging system configured to acquire images of the localized areas of the fluid film, the imaging system including a sensor and a light source, an optical axis of the sensor and an optical axis of the light source being at least substantially aligned with one another in a region between an optical splitter and the fluid film;a first focusing optical unit disposed between the deflection device and the fluid film; anda second image-combining optical unit disposed between the sensor of the imaging system and the optical splitter, the sensor being located in the focal plane of the second optical unit; andwherein the optical beam of an imaging system and the optical beam of the laser are coaxial in a region between the deflection device and the ...

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Номер записи: 65
10-01-2019 дата публикации

NANOCOMPOSITE MATERIALS COMPRISING CATIONIC NANOPARTICLES AND ANIONIC POLYMERS USEFUL IN METHODS FOR 3D PRINTING THEREOF

Номер: US20190010288A1
Автор: CHANG Jin, LEE Mihyun, Zenobi-Wong Marcy
Принадлежит: ETH Zurich

The present technology provides nanocomposite compositions that include about 0.1 wt. % to about 40 wt. % of nanoparticles having a net cationic charge by weight of the composition; about 0.1 wt. % to about 50 wt. % of one or more gelling agents by weight of the composition; and a solvent that includes a protic solvent. Methods of preparing a three-dimensional structure via the nanocomposite composition are also disclosed. 1. A nanocomposite composition comprising:about 0.1 wt. % to about 40 wt. % of nanoparticles by weight of the composition;about 0.1 wt. % to about 50 wt. % of one or more gelling agents by weight of the composition; anda solvent comprising a protic solvent;wherein the nanoparticles have a net cationic charge.2. The nanocomposite composition of claim 1 , wherein the nanoparticles comprise (a) cationic nanoparticle cores claim 1 , or (b) non-cationic nanoparticle cores with a cationic coating material disposed on the outer surface of each non-cationic nanoparticle core claim 1 , or (c) a mixture of (a) and (b).3. The nanocomposite composition of claim 1 , wherein the nanoparticles have a weight average diameter of about 1 nm to about 300 nm.4. The nanocomposite composition of claim 1 , wherein the nanoparticles have a weight average diameter of about 25 nm to about 200 nm.5. The nanocomposite composition of claim 1 , wherein the composition comprises about 1 wt. % to about 10 wt. % of the nanoparticles.6. The nanocomposite composition of claim 2 , wherein the cationic nanoparticle cores comprise chitosan nanoparticles claim 2 , amine-functionalized silica nanoparticles claim 2 , amine-functionalized polystyrene nanoparticles claim 2 , cationic polyamidoamine dendrimer (PAMAM) nanoparticles claim 2 , and combinations of any two or more thereof.7. The nanocomposite composition of claim 2 , wherein the non-cationic nanoparticle cores are selected from non-ionic nanoparticle cores claim 2 , anionic nanoparticle cores claim 2 , or a combination thereof.8 ...

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Номер записи: 66
14-01-2021 дата публикации

Powder mass measurements in containers

Номер: US20210010849A1
Автор: Alexander David Laws, Bradley Alan BENSON, Joshua Ryan SCHMALE, Justin Michael ROMAN, Leon Johannes Arnoldus BRUNKEN, Lukas Peter SOSNOWSKI
Принадлежит: Hewlett Packard Development Co LP

An example of an apparatus is provided. The apparatus includes a container to store a powder. The apparatus includes a flow generator to move a gas to the container. The flow generator is to move the gas at a first velocity and a second velocity, the first velocity to fluidize the powder in a fluidized state, and the second velocity to pass through stationary powder in a powder pack. The apparatus includes pressure sensors to measure pressures in the container. The apparatus includes a measurement engine in communication with the pressure sensors, wherein the measurement engine is to calculate a mass of the powder based on a fluidized pressure differential and based on a pack pressure differential.

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Номер записи: 67
03-02-2022 дата публикации

THREE-DIMENSIONAL FABRICATION APPARATUS

Номер: US20220032379A1
Автор: Aman Yasutomo, KAI Tomoki, Yamashita Yasuyuki
Принадлежит: RICOH COMPANY, LTD.

A three-dimensional fabrication apparatus includes a fabrication chamber and a roller. Powder is spread in layers in the fabrication chamber. Fabrication layers are formed of the powder bonded together and laminated in the fabrication chamber. The roller flattens the powder in the fabrication chamber. The roller includes a first helical groove region and a second helical groove region. The first helical groove region includes a first groove that moves the powder in the fabrication chamber in a first direction along a longitudinal axis of the roller as the roller rotates. The second helical groove region includes a second groove moves the powder in the fabrication chamber in a second direction opposite to the first direction as the roller rotates. 1. A three-dimensional fabrication apparatus comprising:a fabrication chamber in which powder is spread in layers and fabrication layers are to be laminated, the fabrication layers being formed of the powder bonded together; and a first helical groove region including a first groove configured to move the powder in the fabrication chamber in a first direction along a longitudinal axis of the roller as the roller rotates, and', 'a second helical groove region including a second groove configured to move the powder in the fabrication chamber in a second direction opposite to the first direction as the roller rotates., 'a roller configured to flatten the powder in the fabrication chamber, the roller including2. The three-dimensional fabrication apparatus according to claim 1 , further comprising:a movement driver configured to move the roller in a moving direction perpendicular to the longitudinal axis of the roller along an upper surface of the fabrication chamber; anda rotation driver configured to rotate the roller in a counter direction with respect to the moving direction of the roller.3. The three-dimensional fabrication apparatus according to claim 1 ,wherein the first helical groove region and the second helical groove ...

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Номер записи: 68
03-02-2022 дата публикации

APPARATUS, SYSTEM AND METHOD OF OPERATING AN ADDITIVE MANUFACTURING NOZZLE

Номер: US20220032542A1
Автор: GJovik Erik, MacNeish William
Принадлежит: JABIL INC.

Apparatuses, systems and methods of providing heat to enable an FDM additive manufacturing nozzle having refined print control and enhanced printing speed. The heating element may include at least one sheath sized to fittedly engage around an outer circumference of the FDM printer nozzle; at least one wire coil at least partially contacting an inner diameter of the sheath; and at least one energy receiver associated with the at least one wire coil. 1. A sheath heating element for a 3D printer nozzle , comprising:an inner diameter comprising an insulator immediately adjacent to an outer surface of the 3D printer nozzle;at least one heating wire wound about the inner diameter and being suitable to provide at least two heating zones to the outer surface;a ceramic wet winding about the at least one heating wire; anda protective outer diameter about the ceramic wet winding.2. The sheath heating element of claim 1 , further comprising a thermocouple within the ceramic wet winding.3. The sheath heating element of claim 1 , wherein the at least one heating wire comprises two heating wires.4. The sheath heating element of claim 1 , wherein the protective outer diameter comprises a heat redistributer.5. The sheath heating element of claim 1 , wherein the protective outer diameter comprises insulation.6. The sheath heating element of claim 1 , wherein the at least two heating zones comprise a hotter zone nearest a tip of the 3D printer nozzle.7. The sheath heating element of claim 1 , wherein the at least two heating zones comprise a cooler zone farthest from a tip of the 3D printer nozzle.8. The sheath heating element of claim 1 , further comprising a sensor.9. The sheath heating element of claim 8 , wherein the sensor senses characteristics of the inner diameter.10. The sheath heating element of claim 8 , wherein the sensor senses characteristics of the protective outer diameter.11. The sheath heating element of claim 8 , wherein the sensor senses characteristics of the at ...

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Номер записи: 69
19-01-2017 дата публикации

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

Номер: US20170014902A1
Автор: Hiroshi Ohno, Kaori DEURA, Masayuki Tanaka, Takahiro Terada
Принадлежит: Toshiba Corp

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

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Номер записи: 70
19-01-2017 дата публикации

SENSING DEVICE FOR THREE-DIMENSIONAL PRINTING OBJECT

Номер: US20170015067A1
Автор: Huang Yao-Te
Принадлежит:

A sensing device of a three dimensional object being printed is provided. The sensing device includes a roller, a ring shape equipment, a sensor, and a processor. The roller is utilized to perform planarization of the 3D printing object. The ring shape equipment has the same axial as the roller and rotates with the roller. The sensor is utilized to detect rotational speed of the ring shape equipment. The processor determines whether the roller is in contact with the 3D printing object according to the rotational speed of the ring shape equipment. Thereby, contact between the roller and the 3D printing object may be determined without disposed sensor on the roller. 1. A sensing device for a three dimensional (3D) object , comprising:a roller, configured to perform a planarization process of the 3D printing object;a ring shape equipment, having the same axial as the roller and rotating with the roller;a sensor, configured to detect a rotational speed of the ring shape equipment; anda processor, coupled to the sensor,wherein the processor determines whether the roller is in contact with the 3D printing object according to the rotational speed of the ring shape equipment.2. The sensing device as claimed in claim 1 , wherein the processor detects whether a rotational period of ring shape equipment is greater than a predetermine revolutions per minute (RPM) claim 1 , when the rotational period is greater than the predetermined RPM claim 1 , the processor determines that the roller is in contact with the 3D printing object and controls the roller to have a distance relative to the 3D printing object as to perform the planarization process to the 3D printing object.3. The sensing device as claimed in claim 1 , wherein the ring shape equipment forms a cylindrical shape by using the axial of the ring shape equipment claim 1 , and the radius of the ring shape equipment with respect to the axial is greater than the radius of the roller with respect to the roller.4. The sensing ...

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Номер записи: 71
03-02-2022 дата публикации

SYSTEM AND METHOD FOR MANUFACTURING A WIND TURBINE TOWER STRUCTURE

Номер: US20220034108A1
Автор: Cooper Gregory Edward, Fang Biao, Lissianski Vitali Victor, Meyer Pascal, Tobin James Robert, Turnquist Norman Arnold
Принадлежит:

An additive printing device and a method for using the same to manufacture a tower structure of a wind turbine is provided. The additive printing device includes a vertical support structure, a support ring suspended from the vertical support structure, and a printer head movably coupled to the support ring for selectively depositing cementitious material. A drive mechanism, such as a rack and pinion, moves the printer head around the support ring while selectively depositing cementitious material. The vertical support structure may be raised and/or the relative position between the vertical support structure and the printer head may be adjusted to raise the printer head to print subsequent layers. This process may be repeated to print the tower structure layer-by-layer from the ground up. 1. An additive printing device for manufacturing a tower structure of a wind turbine , the additive printing device comprising:a vertical support structure positioned at least partially above the tower structure along a vertical direction;a support ring suspended from the vertical support structure; and,a printer head movably coupled to the support ring, the printer head configured for moving around a perimeter of the support ring while selectively depositing cementitious material to form the tower structure.2. The additive printing device of claim 1 , further comprising:a drive mechanism operably coupling the printer head to the support ring, the drive mechanism configured for moving the printer head around the perimeter of the support ring.3. The additive printing device of claim 2 , wherein the drive mechanism further comprises:a ring gear positioned on the support ring;a drive gear rotatably mounted to the printer head, the drive gear engaging the ring gear; and,a drive motor mechanically coupled to the drive gear for selectively rotating the drive gear to move the printer head about the perimeter of the support ring.4. The additive printing device of claim 1 , wherein the ...

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Номер записи: 72
03-02-2022 дата публикации

SEAL ASSEMBLIES HAVING A SENSOR

Номер: US20220034403A1
Автор: FERNANDEZ SANJUAN Josep Maria, GARCIA GOMEZ Arturo, Prats Gonzalez Ruben
Принадлежит: Hewlett-Packard Development Company, L.P.

Examples relate to a seal assembly comprising a base unit comprising an opening and a sealing surface extending around the opening. The seal assembly further comprises a sensor to detect a distance between the sealing surface of the base unit and a sealing surface of a lid when a fastener is connecting the lid to the base unit. 1. A seal assembly comprising:a base unit comprising an opening and a sealing surface extending around the opening; anda sensor to detect a distance between the sealing surface of the base unit and a sealing surface of a lid when a fastener is connecting the lid to the base unit.2. The seal assembly according to claim 1 , wherein the sensor is attached to an outer surface of the base unit.3. The seal assembly according to claim 1 , wherein the seal assembly comprises:a fixed sensor bracket connected to the base unit; andan adjustable sensor bracket housing the sensor and being slidably connected to the fixed sensor to adjust the position of the sensor with respect the sealing surface of the base unit.4. The seal assembly according to claim 3 , wherein the fixed sensor bracket comprises a guide for guiding the adjustable sensor bracket.5. The seal assembly according to claim 1 , wherein the sensor is a contact sensor.6. The seal assembly according to claim 1 , wherein the sensor is a proximity sensor.7. A sieve assembly comprising:a housing comprising an opening;a sieve to sieve powder inside the housing;a lid to close the opening;a seal member to be pressed between the lid and the housing;a plurality of fasteners to connect the lid to the housing such that a distance between the housing and the lid is below a predetermined distance; anda plurality of sensors to detect the distance between the housing and the lid.8. The sieve assembly according to claim 7 , wherein the housing comprises a rim around the opening claim 7 , the rim comprising fastening portions to fasten the plurality of fasteners and rim portions between two consecutive ...

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Номер записи: 73
18-01-2018 дата публикации

LAMINATION MOLDING APPARATUS

Номер: US20180015542A1
Автор: MURANAKA Katsutaka
Принадлежит: SODICK CO., LTD.

A fume collector can be operated continuously for a long time, and an influence on a three-dimensional article is minimized. 1. A lamination molding apparatus comprising:a chamber that is closed;a laser radiation apparatus configured to radiate a laser beam to a predetermined irradiation region on a powder material layer formed by uniformly spreading a powder material in the chamber and form a sintered layer; andan inert gas supply/discharge apparatus configured to supply an inert gas into the chamber such that the chamber is always filled with the inert gas to a predetermined concentration or more and discharge fumes to the outside of the chamber, an inert gas supply apparatus configured to supply the inert gas into the chamber; and', 'a fume collector including a charging section having a charging electrode configured to positively or negatively charge the fumes, a charging electrode cleaner configured to remove the fumes adhered to the charging electrode, and a dust collecting section configured to collect the charged fumes,, 'wherein the inert gas supply/discharge apparatus includeswherein the charging electrode cleaner removes the fumes when formation of the sintered layer is not being performed by the laser radiation apparatus in operation.2. The lamination molding apparatus according to claim 1 , further comprising a control device configured to output a cleaning start signal at a predetermined timing when a radiation process of radiating the laser beam to form the sintered layer is not being performed in operation claim 1 ,wherein the fume collector starts cleaning of the charging electrode using the charging electrode cleaner when the cleaning start signal is input and terminates the cleaning until the next radiation process starts.3. The lamination molding apparatus according to claim 1 , wherein the charging electrode cleaner comprises a nozzle configured to eject the inert gas to the charging electrode.4. The lamination molding apparatus according to ...

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Номер записи: 74
17-01-2019 дата публикации

COATING PART PRECURSORS

Номер: US20190016045A1
Автор: Emamjomeh Ali, Schmid Geoffrey, WRIGHT Jake
Принадлежит: Hewlett-Packard Development Company, L.P.

In a coating method example, a coating is formed on a part precursor by blasting the part precursor with a blast medium. The blast medium includes blasting beads and a coating agent. The part precursor is formed from a polymeric build material, and a hardness of the blasting beads is greater than a hardness of the polymeric build material. 1. A coating method , comprising: blasting beads; and', 'a coating agent;, 'forming a coating on a part precursor by blasting the part precursor with a blast medium, the blast medium includingwherein the part precursor is formed from a polymeric build material, and a hardness of the blasting beads is greater than a hardness of the polymeric build material.2. The method as defined in wherein the coating agent is selected from the group consisting of graphite claim 1 , molybdenum disulfide claim 1 , and polytetrafluoroethylene.3. The method as defined in wherein the coating agent is present in an amount ranging from greater than 0 wt % to about 0.4 wt % based on a total wt % of the blast medium.4. The method as defined in wherein the hardness of the blasting beads is from about 2 units to about 5 units greater than the hardness of the polymeric build material on a Mohs scale of hardness.5. The method as defined in wherein a particle size of the blasting beads ranges from about 0.1 mm to about 1 mm.6. The method as defined in wherein a size distribution of the coating agent is 20 μm≤D90≤70 μm claim 1 , and D90 is an average particle size that about 90% of particles of the coating agent are smaller than.7. The method as defined in wherein the blasting beads are selected from the group consisting garnet blasting beads claim 1 , glass blasting beads claim 1 , alumina blasting beads claim 1 , steel blasting beads claim 1 , coal slag blasting beads claim 1 , silicon carbide blasting beads claim 1 , and combinations thereof.8. The method as defined in wherein the coating agent has a springback value that is less than about 20%.9. The ...

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Номер записи: 75
17-01-2019 дата публикации

SEMI-PERMEABLE ELEMENT, USE THEREOF AND PREPARATION METHOD THEREFOR AND 3D PRINTING DEVICE

Номер: US20190016051A1
Автор: CHEN Jiming, GE Yan, HUANG Haizhou, HUANG Jianhong, Li Jinhui, LIN Wenxiong, LIN Zixiong, LIU Huagang, RUAN Kaiming, WENG Wen, WU Hongchun, Zhang Zhi
Принадлежит: FUJIAN INSTITUTE OF RESEARCH ON THE STRUCTURE OF MATTER, CHINESE ACADEMY OF SCIENCE

A semipermeable element for the penetration of 3D printing curing inhibitors. The semipermeable element has a pore density of 10-10/cm, and/or the pore diameter of 0.01 μm-5 μm. A usage of a semipermeable element, and manufacturing method thereof as well as a 3D printing apparatus. The semipermeable element has good permeability to the curing inhibitor, and simply introducing air can achieve the thickness of inhibited curing layer as required by the continuous manufacturing of the three-dimensional objects. 113-. (canceled)14. A semipermeable element for the penetration of 3D printing curing inhibitors , wherein the semipermeable element has a pore density of 10-10/cm , and/or the pore diameter of 0.01 μm-5 μm.15. The semipermeable element according to claim 14 , wherein the semipermeable element has a gas permeability of no less than 100 bar.16. The semipermeable element according to claim 14 , wherein the semipermeable element has a pore density of 10-10/cm claim 14 , and/or the pore diameter of 0.02 μm-0.2 μm.17. The semipermeable element according to claim 14 , wherein the gas permeability is no less than 120 bar claim 14 , and may be no less than 150 bar.18. The semipermeable element according to claim 14 , wherein the semipermeable element is manufactured by using nuclear track etching technology to etch micropores on an optically transparent substrate material claim 14 , wherein the density and diameter of the pores may be controlled as required during manufacturing.19. The semipermeable element according to claim 14 , wherein the substrate material includes polycarbonate (PC) claim 14 , polyethylene terephthalate (PET) claim 14 , polyimide (PI) claim 14 , polyethylene (PE) claim 14 , polypropylene (PP) claim 14 , quartz crystal claim 14 , mica or combinations thereof; preferably claim 14 , the substrate material is quartz crystal or mica claim 14 , alternatively the substrate material includes quartz crystal and/or mica.20. The semipermeable element ...

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Номер записи: 76
16-01-2020 дата публикации

Heat Exchangers Having a Three-Dimensional Lattice Structure with a Rounded Unit Cell Entrance and Methods of Forming Rounded Unit Cell Entrances in a Three-Dimensional Lattice Structure of a Heat Exchanger

Номер: US20200016704A1
Автор: Lonnie Ray Stewart, Jr., Samuel Noah Miller
Принадлежит: General Electric Co

Provided are heat exchangers that have a plurality of integrally formed contiguous unit cells defining a three-dimensional lattice of repeating unit cells, and methods of reducing a pressure drop in a three-dimensional lattice structure of a heat exchanger. The plurality of integrally formed contiguous unit cells includes a plurality of pathway cells and a plurality of partial unit cells. The plurality of pathway cells have a solid domain that includes interior and exterior pathway-cell surfaces that respectively contiguously define first and second furcated fluid domains for a first fluid and a second fluid to respectively flow across the plurality of pathway cells. The plurality of partial unit cells may introduce a partial phase-shift to the three-dimensional lattice of repeating unit cells such that the first fluid domain comprises a first rounded unit cell entrance and the second fluid domain comprises a second rounded unit cell entrance.

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Номер записи: 77
16-01-2020 дата публикации

Three-Dimensional Shaping Apparatus And Nozzle Unit

Номер: US20200016832A1
Автор: Hashimoto Taki, Saito Koichi, YUWAKI Kohei
Принадлежит:

A three-dimensional shaping apparatus includes a generation unit that generates a melted shaping material, a nozzle that discharges the shaping material generated by the generation unit, a flow passage through which the shaping material is guided to the nozzle, a filter chamber that is provided between the flow passage and the nozzle, a cross-sectional area of a cross section perpendicular to a direction from the flow passage toward the nozzle being larger than a flow passage cross-sectional area, which is a cross-sectional area of the flow passage, of a cross section perpendicular to a flowing direction of the shaping material in the flow passage, and a filter that has pores through which the shaping material passes and is disposed in the filter chamber, a cross-sectional area of a cross section perpendicular to a direction from the flow passage toward the nozzle being larger than the flow passage cross-sectional area. 1. A three-dimensional shaping apparatus comprising:a generation unit that generates a melted shaping material;a nozzle that discharges the shaping material generated by the generation unit;a flow passage through which the shaping material is guided to the nozzle;a filter chamber that is provided between the flow passage and the nozzle, a cross-sectional area of a cross section perpendicular to a direction from the flow passage toward the nozzle being larger than a flow passage cross-sectional area, which is a cross-sectional area of the flow passage, of a cross section perpendicular to a flowing direction of the shaping material in the flow passage; anda filter that has pores through which the shaping material passes and is disposed in the filter chamber, a cross-sectional area of a cross section perpendicular to a direction from the flow passage toward the nozzle being larger than the flow passage cross-sectional area.2. The three-dimensional shaping apparatus according to claim 1 , whereinpore diameters of the pores of the filter gradually ...

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Номер записи: 78
21-01-2021 дата публикации

SOFT RECOATER BLADE AND METHOD OF DETECTING WEAR

Номер: US20210016504A1
Автор: Norman Joshua M.
Принадлежит:

A system including a powder bed recoater blade, defining a longitudinal axis, for spreading powder of a powder bed including at least one wire interior thereof. 1. A system comprising:a powder bed recoater blade, defining a longitudinal axis, for spreading powder of a powder bed including at least one wire interior thereof.2. The system of claim 1 , wherein the wire is connected to a controller for notifying of blade damage.3. The system of claim 2 , wherein the controller is configured to signal when the wire is contacted.4. The system of claim 2 , wherein the controller is configured to signal when the wire is damaged.5. The system of claim 1 , further comprising a powder bed below the recoater blade containing a powdered material.6. The system of claim 1 , wherein the at least one wire includes a series of parallel wires.7. The system of claim 6 , wherein the at least one wire includes a series of parallel wires spaced apart in the vertical direction.8. The system of claim 1 , wherein the wire includes a conductive material.9. The system of claim 1 , wherein the wire is between 1 mm and 2 mm claim 1 , inclusive.10. The system of claim 6 , wherein each of the wires is between 0.1 mm and 2 mm claim 6 , inclusive.11. The system of claim 1 , wherein the wire extends parallel to the longitudinal axis.12. The system of claim 11 , wherein the wire is off center within the blade.13. The system of claim 11 , wherein the wire is within the bottom half of the blade.14. The system of claim 1 , wherein the applicator is part a system for an additive manufacturing.15. A method comprising:driving an a powder bed recoater blade over a powder bed such that an interior wire is exposed and contacts powder bed material or a production part; andnotifying the user that the interior wire is exposed.16. The method of claim 15 , further comprising removing the recoater blade as a result of the notification.17. A method comprising:driving an a powder bed recoater blade over a powder bed ...

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Номер записи: 79
03-02-2022 дата публикации

Systems and methods for electron beam focusing in electron beam additive manufacturing

Номер: US20220037105A1
Автор: Antonio Caiafa, John Scott Price, Uwe Wiedmann, Vasile Bogdan Neculaes, Ye Bai
Принадлежит: General Electric Co

A system for melting, sintering, or heat treating a material is provided. The system includes a cathode, an anode, and a focus coil assembly having a quadrupole magnet. The quadrupole magnet includes four poles and a yoke. The four poles are spaced apart and surround a beam cavity. Each of the four poles includes a pole face proximate the beam cavity and an end opposite the pole face. The first and third poles are aligned along an x-axis and configured to have a first magnetic polarity at their respective pole faces and a second magnetic polarity opposite the first magnetic polarity at their respective ends. The second and fourth poles are aligned along a y-axis and configured to have the second magnetic polarity at their respective pole faces and the first magnetic polarity at their respective ends. The yoke surrounds the poles and is coupled to the poles.

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Номер записи: 80
17-01-2019 дата публикации

Transmissive liquid crystal panel and 3d printer

Номер: US20190018279A1
Автор: Chen Wang, Jie Chen
Принадлежит: Shanghai Tianma Microelectronics Co Ltd

Transmissive liquid crystal panel and 3D printer including the same, the panel includes: a first substrate including a plurality of data lines and scan lines, data lines intersecting with scan lines to define a plurality of pixels; a second substrate; a liquid crystal layer located between the first and second substrate; a black matrix defining a plurality of aperture areas corresponding to the pixels; a monochromatic quantum dot layer covering the aperture areas, the monochromatic quantum dot layer being excitable under near ultraviolet light to generate light having a wavelength in a range of 385 nm-420 nm. The panel does not use chromatic filter layer, which improves transmittance of the panel with respect to near ultraviolet light, when the panel is applied in 3D printer, photographic efficiency of photosensitive resin and printing speed are improved, and utilization of near-ultraviolet light emitted by the backlight source is improved.

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Номер записи: 81
18-01-2018 дата публикации

System and Method for Authentication and Making Payment When Carrying out On-Demand Manufacturing

Номер: US20180018725A1
Автор: Joyson Bensam, Puehse Tobias
Принадлежит:

There is provided a system and method for authentication and making payment when carrying out on-demand manufacturing. The system and method ensures that payment can be conveniently made by users and subsequently, appropriate payments are made to parties for their role in the on-demand manufacturing. 1. A system for authentication and making payment when carrying out on-demand manufacturing , the system comprising:a central repository configured for storing data used for the on-demand manufacturing and for receiving/transmitting instructions for carrying out the on-demand manufacturing;a payment system communicatively coupled to the central repository; andat least one manufacturing apparatus of an on-demand manufacturer, the at least one manufacturing apparatus being communicatively coupled to the central repository;wherein payment is carried out by the payment system upon the central repository positively authenticating the at least one manufacturing apparatus of the on-demand manufacturer.2. The system of claim 1 , further comprising at least one user device configured to transmit the instructions to the central repository claim 1 , the at least one user device selected from a group consisting of: a personal computer claim 1 , a laptop computer claim 1 , a mobile phone and a tablet computer.3. (canceled)4. The system of claim 1 , wherein authentication of the at least one manufacturing apparatus of the on-demand manufacturer includes processing the data claim 1 , and wherein the data includes:operational parameters of manufacturing apparatus of the on-demand manufacturer; andcertification of the manufacturing apparatus of the on-demand manufacturer.5. (canceled)6. The system of claim 1 , wherein the central repository is configured for processing the data.7. The system of claim 1 , wherein the at least one manufacturing apparatus of the on-demand manufacturer is at least one additive layer printer.8. The system of claim 4 , wherein the payment is made to an ...

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Номер записи: 82
18-01-2018 дата публикации

Device for generating printing information and method for generating printing information

Номер: US20180018830A1
Автор: Jae-Hoon Lee
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided are a device and a method of generating printing information. The method includes acquiring at least one image part by splitting a basic image acquired based on a user input; determining a target article corresponding to the basic image from a three-dimensional (3D) article list stored in a database (DB) by using the at least one image part; providing a graphical user interface (GUI) capable of editing a shape of the target article according to a user input; and editing the shape of the target article, based on a user input via the GUI, and generating printing information used to 3D print the edited target article.

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Номер записи: 83
16-01-2020 дата публикации

Quality testing of additive manufactured product using electrical measurements

Номер: US20200018724A1
Автор: Greg Allen Seidel, Rudy Pitera, Scott Wigen
Принадлежит: Rosemount Aerospace Inc

A method of determining an amount of imperfection in an additively manufactured material is disclosed herein. The method includes forming a sample piece constructed from the material during a same additive manufacturing cycle as a design piece constructed from the material, introducing a first electrical current to the sample piece while maintaining the sample piece at a reference temperature, and determining the amount of imperfection in the material depending on the measured resistance and the reference temperature of the sample piece.

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Номер записи: 84
28-01-2016 дата публикации

FOOD PRINTING ADDITIVE LAYERING SUBSTRATE STRUCTURE INGESTIBLE MATERIAL PREPARATION SYSTEM AND METHOD

Номер: US20160021925A1
Автор: Holman Paul, Levien Royce A., Malamud Mark A., Stephenson Neal, Young Christopher Charles
Принадлежит:

A computationally implemented system and method that is designed to, but is not limited to: electronically directing control of at least partial treatment of the one or more portions of the one or more ingestible substrate structures according to the treatment instructional information regarding the one or more subsequent ingestible substrate structure directed energy operations including directing energy to treat at least in part the one or more portions of the one or more ingestible substrate structures to form at least in part the one or more selected ingestible products subsequent to and based at least in part upon the electronically receiving the user status information and the electronically receiving the selection information. In addition to the foregoing, other method aspects are described in the claims, drawings, and text forming a part of the present disclosure. 1. A system comprising:inputter electronic machine circuitry configured for involvement with inputting identifying data related to a user;receiver electronic machine circuitry configured for involvement with receiving one or more food selections selected from a menu of food items by the user;force imparter electronic machine circuitry configured for involvement with directing one or more applied forces via one or more objects on to one or more ingestible substrate impacted portions based at least in part on the one or more food selections; andfood printer electronic machine circuitry configured for involvement with food printing one or more layers of food material on to the one or more ingestible substrate impacted portions based at least in part on the one or more food selections.2. The system of claim 1 , wherein the food printer electronic machine circuitry configured for involvement with food printing one or more layers of food material on to the one or more ingestible substrate impacted portions based at least in part on the one or more food selections comprises:injection electronic machine ...

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Номер записи: 85
16-01-2020 дата публикации

Deflection Scanning Device with Multi-phase Winding and Deflection Scanning System

Номер: US20200020503A1
Автор: Guohua Huang, Guokun Zhu, Jianfei Zhang, Shouqi Wei, Shuli Cai, Xiang Fei, Xiaodong Huang, Yinhong Qin, Yujiang Qin
Принадлежит: Guilin Thd Technology Co Ltd

The present invention relates to a deflection scanning device with a multi-phase winding and a deflection scanning system. The deflection scanning device is of an axisymmetric structure, and comprises a ferromagnetic frame and a deflection scanning winding, wherein the inner side of the ferromagnetic frame is longitudinally provided with 2aw wire slots equally distributed along the circumference; and the deflection scanning winding comprises a w-phase winding, wherein the axis of the each phase winding is symmetrically distributed. The deflection scanning system comprises a deflection scanning device, a drive power supply unit and, a central, control unit. The deflection scanning device of the present invention can improve the uniformity of the magnetic induction intensity in the charged particle beam channel, and then reduce the defocusing effect and improve the scanning accuracy.

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Номер записи: 86
26-01-2017 дата публикации

RESIN SOLIDIFICATION SUBSTRATE AND ASSEMBLY

Номер: US20170021562A1
Автор: El-Siblani Ali, Shkolnik Alexandr
Принадлежит:

A solidification substrate assembly for making a three-dimensional object from a solidifiable material includes a solidification substrate assembly. In certain examples, the solidifiable material solidifies in contact with the solidification substrate, and the tilting of the substrate and/or or the use of a peeling member facilitates separation of the substrate from the solidified material. In other examples, the solidification substrate assembly includes a film that is adjacent to a rigid or semi-rigid layer. The solidifiable material solidifies in contact with the film, and a peeling member peels the film away from the solidified material. Intelligent solidification substrate assemblies are also described in which a force sensor determines when to expose the solidifiable material to solidification energy and/or whether to use a peeling member to separate the solidification substrate from a solidified objection section. 1. A container for holding a solidifiable material , comprising:a plurality of sidewalls;a bottom comprising a translucent silicone elastomer layer, and atranslucent protective film layer disposed on a surface of the translucent silicone elastomer layer.2. The container of claim 1 , the bottom further comprising a rigid or semi-rigid translucent layer claim 1 , wherein translucent silicone elastomer layer is disposed on a surface of the rigid or semi-rigid translucent layer.3. The container of claim 1 , wherein the solidifiable material comprises a photocurable resin claim 1 , and a volume of the photocurable resin is located in the container in contact with the translucent protective film layer.4. The container of claim 1 , wherein the container comprises a solidification substrate claim 1 , and the solidification substrate includes the translucent silicone elastomer layer and the translucent protective film layer.5. The container of claim 4 , wherein the solidification substrate further comprises a rigid or semi-rigid translucent layer.6. The ...

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Номер записи: 87
26-01-2017 дата публикации

3-DIMENSIONAL PRINTING APPARATUS

Номер: US20170021563A1
Автор: Yoon Woo Young
Принадлежит: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

A 3-dimensional printing apparatus may include a storage unit, a dispensing unit, and a pressure control unit. The storage unit stores a printing material satisfying Bingham plastic model in which a viscosity is decreased as a pressure is increased. The dispensing unit receives the printing material from the storage unit to ejaculate the printing material. The pressure control unit controls a pressure applied to the printing material supplied in the dispensing unit to control a viscosity of the printing material. Thus, a product having soft characteristics may be manufactured. 1. A 3-dimensional printing apparatus comprising:a storage unit storing a printing material satisfying Bingham plastic model in which a viscosity is decreased as a pressure is increased;a dispensing unit receiving the printing material from the storage unit to ejaculate the printing material; anda pressure control unit controlling a pressure applied to the printing material supplied in the dispensing unit to control a viscosity of the printing material.2. The 3-dimensional printing apparatus of claim 1 , further comprising a temperature control unit controlling a temperature of the printing material supplied in the dispensing unit so that the printing material has a phase in which solid and liquid coexists.3. The 3-dimensional printing apparatus of claim 1 , wherein the printing material maintains s semi-solid state in the dispensing unit.4. The 3-dimensional printing apparatus of claim 1 , wherein the printing material has a gel state in which liquid and solid powder are mixed.5. The 3-dimensional printing apparatus of claim 4 , wherein the solid powder includes silicon oxide or metal oxide. This application claims priority under 35 USC §119 to Korean Patent Application No. 10-2015-0102146, filed on Jul. 20, 2015 in the Korean Intellectual Property Office (KIPO), the contents of which are incorporated herein in its entirety by reference.1. Technical FieldThe present disclosure relates ...

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Номер записи: 88
26-01-2017 дата публикации

THREE-DIMENSIONAL MOLDING DEVICE

Номер: US20170021564A1
Автор: DAICHO Yuya, IMAMURA Satoshi, Kajino Satoshi, KATOU Yousuke, MIYANO Hideaki, OKANE Toshimitsu, OOBA Yoshikazu, SUZUKI Koukichi
Принадлежит:

The present invention provides a three-dimensional molding device which makes it possible to reduce molding time by decreasing the inkjet head waiting time during the molding step. A three-dimensional molding device for scattering and layering sand on a molding table () using a recoater (), discharging a binder from a head () so as to coat the top of the scattered sand with the binder, on the basis of molding data, and creating a three-dimensionally molded. article by joining' the sand (S) using the binder, wherein: the recoater () is formed. so as to have an amount of sand (S) equivalent to the length of one side of the molding table () as the scatterable length thereof, and be capable of moving in a direction perpendicular to the one side; the head () is formed as a line head capable of discharging an amount of the binder equivalent to the length of a side adjacent to the one side, and so as to be capable of moving in a direction perpendicular to the side adjacent to the one side; and the three-dimensionally molded article is formed on the molding table () by alternatingly operating the recoater () and the head (). 1. A 3D printer using a recoater to deposit a powder material on a printing table to form layers and using printing data as the basis to discharge and coat a binder on the deposited powder material from an ink jet head and binding said powder material to create a 3D object , which 3D printermakes said recoater a length enabling deposition of powder material in an amount of the length of one side of said printing table and forming it to be able to move in a direction perpendicular to said one side andforms said ink jet head as a line head able to discharge binder in an amount of the length of a side adjoining said one side and forming it to be able to move in a direction perpendicular to the side adjoining said one side.2. A 3D printer according to whereinsaid recoater is formed to be able to deposit powder material on said printing table at both of ...

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Номер записи: 89
25-01-2018 дата публикации

AN APPARATUS AND A METHOD FOR DETERMINING A QUANTITY OF MATERIAL

Номер: US20180022028A1
Автор: Fornos Pol, Puigardeu Aramendia Sergio, Ramirez Muela David, Sanchez Ribes Salvador
Принадлежит: Hewlett-Packard Development Company, L.P.

According to one example, there is provided a method of determining characteristics of a build material. The method comprises obtaining a first quantity of a first build material, determining, for the first build material, the proportion of non-marked build material and marked build material, determining, based on the determined proportion, a first quantity of the first build material to be combined with a second quantity of a second build material to produce a third quantity of mixed build material having a predetermined proportion of marked build material. 1. Apparatus for determining characteristics of a material , comprising:a first container to receive a quantity of the material;a first sensor to measure characteristics of the material; and determine, using the first sensor, the proportion of non-marked material and marked material; and', 'determine, based on the determined proportion, a first quantity of the material to be combined with a second quantity of a different material to a produce a third quantity of material having a predetermined proportion of marked material., 'a controller to2. The apparatus of claim 1 , further comprising a second container to receive a quantity of a second material claim 1 , wherein the first and second containers further comprise respective first and second regulation devices to allow material from their respective containers to be transferred into a destination container claim 1 , and wherein the controller is to control the first and second regulation devices to produce the third quantity of material in the destination container.3. The apparatus of claim 1 , further comprising a second sensor associated with the second container claim 1 , and wherein the controller is to determine the proportion of non-marked material and marked material in the second material.4. The apparatus of claim 1 , wherein at least one of the first container claim 1 , the second container claim 1 , and the third container comprise a mixing element to ...

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Номер записи: 90
24-01-2019 дата публикации

APPARATUS FOR MANUFACTURING THREE-DIMENSIONAL OBJECTS

Номер: US20190022790A1
Автор: HOFMANN ALEXANDER, STAMMBERGER Jens
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively manufacturing of 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, wherein a direct measuring unit () is provided for determining a position and/or a travel distance of at least one moveable component () of the apparatus (). 1123451. Apparatus () for additively manufacturing of 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 , characterized in that a direct measuring unit () is provided for determining a position and/or a travel distance of at least one moveable component () of the apparatus ().2745. Apparatus according to claim 1 , characterized by a coupling means with at least one coupling means () configured to couple the direct measuring unit () with the component ().371051112. Apparatus according to claim 2 , characterized in that the coupling means () comprises a redirection means () configured to redirect a movement of the movable component () directed along a first movement direction and/or a first axis () into a movement of the direct measuring means along a second movement direction and/or a second axis ().47. Apparatus according to claim 2 , characterized in that at least one coupling means () is a pulling means and/or a pushing means.57. Apparatus according to claim 2 , characterized in that at least one coupling means () is built of or comprises flexible material and/or low elongation material.6715. Apparatus according to claim 2 , characterized in that at least one coupling means () is or comprises a rope and/or a wire and/or a chain and/or a rod and/or a spring and/or a pneumatic element () and/or a hydraulic element.7107. Apparatus according to claim 3 , characterized in that the redirection means () is built as a redirection roll guiding and/or ...

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Номер записи: 91
24-01-2019 дата публикации

SURFACE EQUALIZATION APPARATUS

Номер: US20190022931A1
Автор: Hutchinson Daniel Joshua
Принадлежит:

A surface equalization apparatus designed to be compatible with a wide variety of part technologies, composite materials and part geometries. The apparatus works with software, chemistry, abrasives and media and includes an oblong, elongated input tank for holding media and a part. The input tank is connected to a motor mount, which is connected to an eccentric motor. When the motor is activated, the input tank begins to move in a vibrational, sinusoidal manner. The motion of the tank on attached springs generates a rotational flow of media in the tank. This creates a low amplitude/high frequency movement of the part through the tank. Surface structures divert media to prevent the part from contacting the side of the tank. Spray nozzles are positioned above the input tank. Acoustic damping foam is positioned around the central components. A cooling fan allows airflow through the apparatus. 1. A method of surface equalization , comprising:providing a part-containing tank;filling the part-containing tank with a media;generating a motion on the part-containing tank in a z-direction;rotating the media in the part-containing tank;placing a part in the part-containing tank;suspending the part in the media within the media; andequalizing the surface of the part.2. The method of claim 1 , wherein the part-containing tank has a first flat side claim 1 , a second flat side wherein the first flat side is opposite the second flat side; and an oblong portion; wherein the oblong portion has a first oblong side and a second oblong side; further comprising directing the flow of media in the part containing tank away from an inner surface of the part containing tank by locating structural features on the inner surface of the part containing tank.3. The method of claim 2 , further comprising locating at least one diverter proximate a surface edge of the media.4. The method of claim 2 , further comprising locating a first diverter proximate an exhaust surface edge of the media and ...

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Номер записи: 92
24-01-2019 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190022938A1
Автор: HOFMANN ALEXANDER, STAMMBERGER Jens, WINIARSKI Daniel
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively manufacturing of 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, comprising at least one process chamber (), wherein the process chamber () comprises at least two chamber segments (), wherein at least one chamber segment () is mounted on the at least one other chamber segment () and is separately detachable. 1122343434. Apparatus () for additively manufacturing of 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 , comprising at least one process chamber () , characterized in that the process chamber () comprises at least two chamber segments ( , ) , wherein at least one chamber segment ( , ) is mounted on the at least one other chamber segment ( , ) and is separately detachable.23467. Apparatus according to claim 1 , characterized in that at least one chamber segment ( claim 1 , ) is separable into at least two sub-segments ( claim 1 , ).33452. Apparatus according to claim 1 , characterized in that the chamber segment ( claim 1 , ) is at least part of a wall and/or a base plate () and/or a cover delimiting the process chamber ().4103434. Apparatus according to claim 1 , characterized in that at least one connection () and/or at least one interface assigned to at least one separately detachable chamber segment ( claim 1 , ) is detachable from the chamber segment ( claim 1 , ).534. Apparatus according to claim 1 , characterized in that the at least one chamber segment ( claim 1 , ) comprises a port and/or a seal and/or a lock and/or a lead-in chamfer.63434. Apparatus according to claim 1 , characterized in that at least one chamber segment ( claim 1 , ) is extractably mounted on the at least one other chamber segment ( claim 1 , ).7834. Apparatus according to claim 1 , ...

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Номер записи: 93
10-02-2022 дата публикации

MAGNETICALLY ACTUATED CLUTCH FOR AN ADDITIVE MANUFACTURING SYSTEM

Номер: US20220042554A1
Автор: Elserman Martijn, Huitema Robert, Neut Matthijs, van Beek Teun, van der Zalm Erik, Versteegh Johan Andreas
Принадлежит: Ultimaker B.V.

A bidirectional magnetic clutch for an additive manufacturing system, comprising a concentric arrangement of an inner drive member () and an outer drive member () enclosing the inner drive member (), the inner and outer drive members () being rotatable relative to each other. The inner drive member () comprises at least two outward facing recesses () and the outer drive member () comprises at least two inward facing recesses (). Each outward facing recess () comprises a radially moveable roller member () of ferromagnetic material. The inner drive member () further comprises a magnetic biasing system () configured to magnetically bias the roller members () into the outward facing recesses (). The bidirectional magnetic clutch further comprises a magnet actuator () at least partially circumferentially arranged around the outer drive member () and configured to maintain an engaged state or disengaged state of the bidirectional magnetic clutch. 1. A bidirectional magnetic clutch for an additive manufacturing system , comprisinga concentric arrangement of an inner drive member and an outer drive member enclosing the inner drive member, the inner drive member and the outer drive member being rotatable relative to each other,wherein the inner drive member comprises at an outer circumferential surface at least two outward facing recesses, and wherein the outer drive member comprises at an inner circumferential surface at least two inward facing recesses,{'b': 1', '2, 'wherein each outward facing recess comprises a radially moveable roller member of ferromagnetic material and having a diameter which is smaller than an inner receiving depth (d) of the outward facing recess in which it is received, and wherein each inward facing recess has an outer receiving depth (d) which is smaller than the diameter of each roller member,'}wherein the inner drive member is further provided with a magnetic biasing system configured to magnetically bias the roller members into the outward ...

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Номер записи: 94
23-01-2020 дата публикации

SYSTEM AND METHOD FOR PRESERVING VALVE MEMBER TRAVEL IN A MULTI-NOZZLE EXTRUDER

Номер: US20200023579A1
Автор: Lynn Christopher G., Mantell David A., Nystrom Peter J.
Принадлежит:

An extruder has a valve assembly configured to move pins to open and close the nozzles in a multi-nozzle extruder head independently. The pins of the valve assembly that are driven by actuators into and out of engagement with nozzles in the extruder head are positioned within sleeves that extend between the valve assembly and the extruder head. A gap is provided between the extruder head and the end of the sleeves proximate the extruder head to enable thermoplastic material leaking from the extruder that contacts the pins to remain in a melted or plastic state so the thermoplastic material does not interfere with the movement of the pins. 1. An extruder comprising:an extruder head having a chamber for holding a volume of thermoplastic material and a plurality of nozzles fluidically connected to the chamber;a plurality of actuators;a plurality of elongated solid members that are operatively connected to the actuators in a one-to-one correspondence, each elongated solid member extending from the actuator associated with the elongated solid member into the extruder head and through the chamber in the extruder head to enable the actuator to push and pull a distal end of the elongated solid member into and out of engagement, respectively, with one of the nozzles in the extruder head in a one-to-one correspondence between the elongated solid members and the nozzles to enable and disable flow of thermoplastic material from the chamber through the nozzles independently; anda plurality of hollow members, each hollow member being positioned about one of the solid elongated members in a one-to-one correspondence and each hollow member extending from the actuator to a position short of the extruder head to form a gap between a distal end of the hollow member to the extruder head.2. The extruder of claim 1 , the extruder head further comprising:a seal; andeach elongated solid member passes through the seal into the chamber in the extruder head.3. The extruder of wherein the seal ...

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Номер записи: 95
23-01-2020 дата публикации

Platform carrier and an assembly for additive manufacturing

Номер: US20200023581A1
Автор: Ralf Loettgen, Romain Dubreuil, Urs Markwalder
Принадлежит: System 3R International AB

A platform carrier that is mountable on a machine table of an additive manufacturing machine. The platform carrier is exchangeable and has a rigid construction. In an embodiment, at least one heating element is integrated in the platform carrier. In an embodiment, a plurality of fixing modules for connecting a build plate onto the platform carrier is integrated in the platform carrier.

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Номер записи: 96
23-01-2020 дата публикации

LEVELING SYSTEM FOR 3D PRINTER

Номер: US20200023582A1
Автор: Gilan Ziv, Liptz Daniel, Zenou Michael
Принадлежит:

A leveling system for a 3D printing system for laser dispensing includes inner and outer frames, each supported at its corners by respective actuators of first and second sets of actuators. The outer frame supports an optical plane within which material to be dispensed by laser irradiation is disposed. The inner frame supports a receiving medium plane within which a substrate on which said material to be dispensed by laser irradiation is disposed. Each actuator operates independently to displace a respective frame corner in the vertical direction. The inner and outer frames each is attached at their respective corners to a respective actuator by a rod, thus allowing the inner and outer frames to freely rotate with respect to one another. An additional frame may support sensors for monitoring the 3D printing system. 1. A leveling system for a 3D printing system for laser dispensing , said leveling system comprising:an outer frame supported at its corners by respective actuators of a first set of actuators, said outer frame supporting an optical plane within which material to be dispensed by laser irradiation is disposed; andan inner frame supported at its corners by respective actuators of a second set of actuators, said inner frame being supported by said outer frame and supporting a receiving medium plane within which a substrate on which said material to be dispensed by laser irradiation is disposed;wherein each of the actuators of the first and second sets is configured to be operated independently under the control of a controller to displace a respective corner of one of said inner or outer frame in a direction orthogonal to a reference frame on which the leveling system rests.2. The leveling system of claim 1 , wherein each of the inner and outer frame has three corners claim 1 , spaced 120° from one another.3. The leveling system of claim 1 , wherein each of the inner frame and the outer frame is attached at its corners to one of the respective actuators by a ...

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Номер записи: 97
23-01-2020 дата публикации

DEVICE AND METHOD FOR CALIBRATING AN IRRADIATION SYSTEM USED TO PRODUCE A THREE-DIMENSIONAL WORKPIECE

Номер: US20200023585A1
Автор: Hoppe Birk, Krol Toni Adam, Stengel Christopher, Thiel Christiane, Wiesner Andreas, Wilkes Jan
Принадлежит:

The invention relates to a device () for the layered production of a three-dimensional workpiece, comprising: a build space () in which the workpiece is manufacturable by selectively solidification of raw material powder layers; an irradiating system () which is adapted to selectively solidify the raw material powder layers in the build space () by emitting a processing beam; at least one calibrating structure (); a sensor arrangement () which is adapted to detect an irradiation of the calibrating structure () by the irradiating system (); and a control unit () which is adapted to calibrate the irradiating system () on the basis of detection information of the sensor arrangement, wherein the calibrating structure () is arranged outside the build space (). The invention also relates to a method for calibrating an irradiating system of a device for the layer-by-layer manufacture of a three-dimensional workpiece. 114-. (canceled)15. A device for the layer-by-layer manufacture of a three-dimensional workpiece , comprising:a build space in which the workpiece is manufacturable by selective solidification of raw material powder layers;an irradiation system which is adapted to selectively solidify the raw material powder layers in the build space by emitting at least one processing beam;at least one calibrating structure;a sensor arrangement which is adapted to detect a back reflection of irradiation emitted by the irradiation system at the calibrating structure; and{'b': '26', 'a control unit () which is adapted to calibrate the irradiation system on the basis of detection information of the sensor arrangement,'}wherein the calibrating structure is arranged outside the build space, andwherein the calibrating structure comprises at least one depression and/or elevation, andwherein the irradiation system is adapted to carry out irradiation of the calibrating structure in the region of the depression and/or elevation within the context of a calibration operation.16. The ...

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Номер записи: 98
28-01-2021 дата публикации

DEVICES, SYSTEMS, AND METHODS FOR MONITORING A POWDER LAYER IN ADDITIVE MANUFACTURING PROCESSES

Номер: US20210023617A1
Автор: Karlsson Kristofer, Löfving Björn
Принадлежит: ARCAM AB

Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method of monitoring a powder layer includes receiving image data corresponding the powder layer supported by a powder bed within a build chamber from imaging devices, determining leading and trailing regions of interest located adjacent to a leading end and a trailing end of the moving powder distributor, respectively, the leading and trailing regions of interest moving according to movement of the moving powder distributor, selecting at least one point located in the leading region of interest from the image data, determining first characteristics of the point, when the point is located within the trailing region of interest, determining second characteristics of the point, and comparing the first characteristics to the second characteristics. 1. A method of monitoring a powder layer distributed by a moving powder distributor in a build chamber , the method comprising:receiving, by a processing device, image data corresponding to a plurality of images of the powder layer supported by a powder bed within the build chamber from one or more imaging devices positioned to image the powder bed;determining, by the processing device, a leading region of interest located adjacent to a leading end of the moving powder distributor, the leading region of interest moving according to movement of the moving powder distributor;determining, by the processing device, a trailing region of interest located adjacent to a trailing end of the moving powder distributor, the trailing region of interest moving according to the moving powder distributor;selecting, by the processing device, at least one point on the powder bed that is located in the leading region of interest from the image data;determining, by the processing device, one or more first characteristics of the at least one point;when the at least one point is located within the trailing region of interest due to movement of ...

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Номер записи: 99
28-01-2021 дата публикации

Build Plate with Adhesive Islands

Номер: US20210023782A1
Автор: August Zachary Aaron, Lee Christopher Thomas
Принадлежит: Arevo, Inc.

A build plate for 3D printers that facilitates separation of the workpiece from the build plate and yet provides lateral anchoring of the unit cell. The build plate comprises (1) a foundation of a material that the unit cell material will not adhere to or will only weakly adhere to, and (2) a plurality of adhesive islands that provide a lateral anchor for the unit cell. An adhesive island is a hole in the foundation of the build plate that is filled with a plug of material to which the unit cell material will strongly adhere. The number, type, location, and size of the adhesive islands is tailored to provide enough lateral stability where needed, but not more. 1. An article of manufacture comprising: (i) a foundation of metal that comprises an obverse surface and a reverse surface, and', '(ii) a first thru-hole through the obverse surface and the reverse surface, wherein the first thru-hole comprises a first chamfer in the reverse surface of the foundation, and', '(iii) a first plug of a first thermoplastic in the first thru-hole; and, 'a build plate that comprisesa workpiece adjacent to the obverse surface of the foundation, wherein the workpiece comprises a second thermoplastic;{'sub': '1', 'wherein the workpiece adheres to the foundation with a first tensile pull-off adhesive strength Tas measured at standard temperature and pressure; and'}{'sub': 2', '2, 'wherein the workpiece adheres to the first plug with a second tensile pull-off adhesive strength Tas measured at standard temperature and pressure, and wherein T>0; and'}{'sub': 1', '2, 'wherein the first tensile pull-off adhesive strength Tis less than the second tensile pull-off adhesive strength T.'}2. The article of manufacture of : (iv) a second thru-hole through the obverse surface and the reverse surface of the foundation, wherein the second thru-hole comprises a second chamfer in the reverse surface of the foundation, and', '(v) a second plug of the first thermoplastic in the second thru-hole; and, ' ...

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Номер записи: 100