公开(公告)号：US11837428B2

公开(公告)日：2023-12-05

申请号：US16944836

申请日：2020-07-31

申请人： General Electric Company

发明人： John Scott Price ,  Ye Bai ,  Antonio Caiafa ,  Vasile Bogdan Neculaes ,  Uwe Wiedmann

IPC分类号： H01J29/68 ,  H01J37/30 ,  B29C64/153 ,  B29C64/273 ,  H01J37/305 ,  B33Y30/00

CPC分类号： H01J29/68 ,  B29C64/153 ,  B29C64/273 ,  H01J37/3002 ,  H01J37/305 ,  B33Y30/00 ,  H01J2237/1415

摘要： 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.

公开(公告)号：US11787108B2

公开(公告)日：2023-10-17

申请号：US17418414

申请日：2019-01-09

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： Krzysztof Nauka ,  Christopher Paul Schodin

IPC分类号： B29C64/165 ,  B33Y10/00 ,  B29C64/282 ,  B29C64/209 ,  B29C64/273 ,  B33Y70/10

CPC分类号： B29C64/165 ,  B29C64/209 ,  B29C64/273 ,  B29C64/282 ,  B33Y10/00 ,  B33Y70/10

摘要： In an example of a method for three-dimensional (3D) printing, one or more dispersions is/are sprayed to form a layer including build material particles and a liquid agent. The liquid agent is evaporated from the layer to form a build material layer, and based on a 3D object model, a binder agent is applied on at least a portion of the build material layer.

公开(公告)号：US11772330B2

公开(公告)日：2023-10-03

申请号：US16872618

申请日：2020-05-12

申请人： HONEYWELL INTERNATIONAL INC.

发明人： John Bowler ,  Gregory Colvin ,  Suresh Sundarraj

IPC分类号： B29C64/393 ,  B29C64/245 ,  B29C64/273

CPC分类号： B29C64/393 ,  B29C64/245 ,  B29C64/273

摘要： Prior to manufacturing a product by additive manufacturing, a stress relief profile including frequency and amplitude parameters of an ultrasonic input is determined based on physical properties of the product, including resonant frequencies of the product and a material from which the product is manufactured. Successive layers of a material are added and energy is applied to incorporate the material of each layer into the product. A processor accesses stress relief profile parameters for each layer, determines whether a layer requires stress relief and determines a frequency and a power level for the stress relief at the layer. An ultrasonic input is applied with the determined parameters to relieve stress as the product is built up.

公开(公告)号：US20230211548A1

公开(公告)日：2023-07-06

申请号：US18011300

申请日：2021-06-28

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung E.V.

发明人： Henning Janssen ,  Florian Schmidt ,  Christian Brecher ,  Daniel Zontar

IPC分类号： B29C64/153 ,  B29C64/273 ,  B29C64/241 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/153 ,  B29C64/273 ,  B29C64/241 ,  B33Y10/00 ,  B33Y30/00

摘要： The invention relates to an additive manufacturing method in which a component (10, 42, 43, 44, 45) is produced in layers using an energy beam (8, 41, 58) which solidifies a starting material (4) and is irradiated by energy beam irradiating means (9, 22, 31, 38, 39, 55, 59, 61) while the starting material (4) is held by a base surface (3, 15, 30, 36, 52) arranged on a base element (2, 16, 29, 35, 51). While the starting material (4) is being irradiated with the energy beam (8, 41, 58), the base element (2, 16, 29, 35, 51) is moved by a rotational component which has a base element rotational axis, wherein the starting material (4) is held on the base surface (3, 15, 30, 36, 52) by a centrifugal acceleration generated by the rotational component. The invention is characterized in that a rotational movement is produced for at least some of the energy beam irradiating means (9, 22, 31, 38, 39, 55, 59, 61). Analogously, at least one energy beam rotational axis (46) is proposed for rotating at least some of the energy beam irradiating means (9, 22, 31, 38, 39, 55, 59, 61) in an additive manufacturing device in which the starting material (4) is held on a base surface (3, 15, 30, 36, 52) by a centrifugal acceleration.

公开(公告)号：US20190193204A1

公开(公告)日：2019-06-27

申请号：US16328403

申请日：2017-08-18

申请人： MULTIPHOTON OPTICS GMBH

发明人： RUTH HOUBERTZ ,  ALEXANDER KRUPP ,  BENEDIKT STENDER

IPC分类号： B23K26/354 ,  B29C64/135 ,  B29C64/273 ,  B33Y30/00 ,  B23K26/0622 ,  B23K26/34

CPC分类号： B23K26/354 ,  B23K26/0622 ,  B23K26/34 ,  B29C64/135 ,  B29C64/273 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  G03F7/0037 ,  G03F7/2053 ,  G03F7/70416

摘要： A device performs laser-assisted processing of a material adhering to a substrate or of a substrate associated or substrate-free body or of its surface. The device has a positioning system enabling three translational and three rotational degrees of freedom and having a sample holder. The sample holder holds the substrate to which the material to be processed adheres or to which the body to be processed is associated or, in the absence of a substrate, the body to be processed. The device has a laser source emitting laser pulses and focusing optics which shape the laser pulses such that they impinge in a focal point or a focal volume in the region of the material or body to be processed in such a way that a two-photon or multi-photon polymerization takes place.

公开(公告)号：US20190047224A1

公开(公告)日：2019-02-14

申请号：US16104603

申请日：2018-08-17

申请人： HOCHSCHULE FUER ANGEWANDTE WISSENSCHAFTEN ASCHAFFENBURG

发明人： Anika TRAUTMANN ,  Ralf HELLMANN

IPC分类号： B29C64/273 ,  B29C64/135 ,  G02B5/00 ,  G02B27/40 ,  G02B27/10 ,  B29C64/277

CPC分类号： B29C64/273 ,  B29C64/135 ,  B29C64/277 ,  B33Y10/00 ,  B33Y30/00 ,  G02B5/003 ,  G02B27/106 ,  G02B27/40

摘要： A method and an apparatus for fabricating a structured object wherein a photo-curing material, which is cured by being irradiated with light, within successive layers is irradiated with light providing energy, which is transformed by absorption to internal energy of the photo-curing material for curing, thereby forming the object. Within each individual layer of the successive layers coarse structures of the object and fine structures of the object are identified. A first light beam is directed, which provides a single photon energy that matches the energy gap of the photo-curing material for absorption, to first focus positions within the photo-curing material. The first focus positions being associated with the coarse structures of the object within a first individual layer of the successive layers, to cure the photo-curing material at the first focus positions thereby forming the coarse structures of the object within the first individual layer.

公开(公告)号：US20240351272A1

公开(公告)日：2024-10-24

申请号：US18608097

申请日：2024-03-18

申请人： Georgia Tech Research Corporation

发明人： Sourabh Kumar Saha ,  Harnjoo Kim ,  Rushil Pingali

IPC分类号： B29C64/135 ,  B29C64/273 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

CPC分类号： B29C64/135 ,  B29C64/273 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

摘要： Systems, methods, devices, and compositions of matter for 3D printing methods and systems that can be used for rapid nanoscale 3D printing of large and deterministic 3D structures with sub-micrometer features and porosities. The method includes storing or determining a plurality of interspersed features for a three-dimensional (3D) structure to project as a sequence of sparse images on the same plane to generate closely spaced fine features on a polymer resist; and generating, using the sequence of sparse images, a plurality of patterned light sheet on the polymer resist with a temporally-focused femtosecond pulse, the light sheet having patterns.

公开(公告)号：US20240342989A1

公开(公告)日：2024-10-17

申请号：US18637682

申请日：2024-04-17

申请人： Cornell University

发明人： ATIEH MORIDI ,  KAUSHALENDRA K. SINGH

IPC分类号： B29C64/273 ,  B22F10/22 ,  B22F10/25 ,  B22F12/43 ,  B29C64/223 ,  B29C64/236 ,  B29C64/245 ,  B29C64/321 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  C23C14/04

CPC分类号： B29C64/273 ,  B22F10/22 ,  B22F10/25 ,  B22F12/43 ,  B29C64/223 ,  B29C64/236 ,  B29C64/245 ,  B29C64/321 ,  B29C64/371 ,  C23C14/048 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

摘要： An additive manufacturing system includes an apparatus to facilitate production at the microscale using metal sheet as feedstock. This additive manufacturing system uses energy from a pulsed laser beam for ejection of metallic droplets to consolidate a part in a layer-by-layer manner.

公开(公告)号：US20240239040A1

公开(公告)日：2024-07-18

申请号：US18416708

申请日：2024-01-18

申请人： SILICON LIGHT MACHINES CORPORATION

发明人： Gregory Jacob ,  Stephen Hamann ,  Alexander Payne ,  Lars Eng ,  James Hunter ,  Tianbo Liu ,  Hirofumi Mizuno

IPC分类号： B29C64/135 ,  B29C64/273 ,  B33Y10/00 ,  B33Y30/00 ,  B41J2/44 ,  B41J2/47 ,  B41M3/00 ,  B41M5/00 ,  B41M5/26 ,  G02B26/08 ,  G02B26/10

CPC分类号： B29C64/135 ,  B29C64/273 ,  B33Y10/00 ,  B33Y30/00 ,  B41J2/442 ,  B41J2/471 ,  B41M3/008 ,  B41M5/0058 ,  B41M5/0064 ,  B41M5/262 ,  B41M5/267 ,  G02B26/0808 ,  G02B26/10

摘要： A laser manufacturing system including a spatial light modulator (SLM) with a rectangular array of electrically actuated two-dimensional (2D) diffractors arranged to form multiple pixels spaced linearly along a long-axis thereof, each pixel including a plurality of 2D diffractors electrically ganged together and arranged along a short-axis perpendicular to the long-axis. The system further includes a laser and optics to illuminate the SLM, and projection optics to project modulated light from the SLM onto a surface of a workpiece to form an anamorphic image of the SLM that is demagnified along the long-axis of the SLM and tightly focused along the short-axis to form a condensed line beam to mark the workpiece. The line beam has a sinc2 profile along the short-axis and a top-hat along the long-axis. Demagnification and the resulting long-axis length at the workpiece is chosen based on the pulse-energy of the laser and targeted peak fluence.

公开(公告)号：US11999098B2

公开(公告)日：2024-06-04

申请号：US17413357

申请日：2019-10-21

申请人： Karlsruher Institut für Technologie

发明人： Vincent Hahn ,  Patrick Müller ,  Eva Blasco ,  Martin Wegener

IPC分类号： B29C64/129 ,  B29C64/245 ,  B29C64/255 ,  B29C64/273 ,  B29C64/282 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/129 ,  B29C64/245 ,  B29C64/255 ,  B29C64/273 ,  B29C64/282 ,  B33Y10/00 ,  B33Y30/00

摘要： The present invention relates to a method for additive manufacturing of a 3D-structured form and to a device for additive manufacturing of a 3D-structured form.