公开(公告)号：US20230054516A1

公开(公告)日：2023-02-23

申请号：US17892507

申请日：2022-08-22

申请人： General Electric Company

发明人： Mary Kathryn Thompson ,  Joshua Tyler Mook ,  William Joseph Steele ,  David Scott Simmermon ,  Michael Thomas Gansler

IPC分类号： B29C64/277 ,  G02B26/08 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B28B1/00 ,  B28B17/00 ,  B29C64/153 ,  B29C64/393 ,  B22F12/45 ,  B22F10/85 ,  B22F10/28

摘要： An irradiation device for additively manufacturing three-dimensional objects may include a beam generation device configured to generate an energy beam, an optical modulator including a micromirror array disposed downstream from the beam generation device, and a focusing lens assembly disposed downstream from the optical modulator. The micromirror array may include a plurality of micromirror elements configured to reflect a corresponding plurality of beam segment of the energy beam along a beam path incident upon the focusing lens assembly. The focusing lens assembly may include one or more lenses configured to focus the plurality of beam segments such that for respective ones of a plurality of modulation groups including a subset of micromirror elements, a corresponding subset of beam segments are focused to at least partially overlap with one another at a combination zone corresponding to the respective modulation group.

公开(公告)号：US11577347B2

公开(公告)日：2023-02-14

申请号：US17719140

申请日：2022-04-12

申请人： Seurat Technologies, Inc.

发明人： James A. DeMuth ,  Erik Toomre ,  Francis L. Leard ,  Kourosh Kamshad ,  Heiner Fees ,  Eugene Berdichevsky

IPC分类号： B23K37/04 ,  B29C64/264 ,  B29C64/153 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y99/00 ,  B23K26/12 ,  B23K26/142 ,  B23K26/144 ,  B23K26/70 ,  B29C64/386 ,  B29C64/268 ,  B22F3/24 ,  B23K15/00 ,  B23K15/06 ,  B23K26/03 ,  B23K26/08 ,  B23K26/16 ,  B23K26/36 ,  B25J11/00 ,  G02B7/14 ,  G02B7/16 ,  G02B7/182 ,  G02B15/04 ,  G02B15/10 ,  G02B19/00 ,  G02F1/01 ,  G02F1/1333 ,  G02F1/135 ,  G05B17/02 ,  H01S5/40 ,  B22F12/00 ,  B22F10/00 ,  H01S5/00 ,  B22F12/33 ,  B22F12/44 ,  B22F12/70 ,  G02B27/10 ,  B23K26/00 ,  B23K26/082 ,  B23K101/00 ,  B23K101/24 ,  B23K103/00 ,  B23K101/02 ,  B29K105/00 ,  G02B27/28 ,  G07C3/14 ,  B22F10/10 ,  B33Y30/00 ,  B23K26/342 ,  B28B1/00 ,  G02B26/08 ,  G02B27/09 ,  G02B27/14 ,  G02B27/00

摘要： A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

公开(公告)号：US20230036748A1

公开(公告)日：2023-02-02

申请号：US17933207

申请日：2022-09-19

申请人： Kohsuke Miyazaki ,  Hiroyuki Naito ,  Takumi Yokoyama ,  Junjiroh Sogame ,  Shinichiroh Satoh ,  Naoki Oya ,  Katsuhiko Fujii

发明人： Kohsuke Miyazaki ,  Hiroyuki Naito ,  Takumi Yokoyama ,  Junjiroh Sogame ,  Shinichiroh Satoh ,  Naoki Oya ,  Katsuhiko Fujii

IPC分类号： B29C64/165 ,  B33Y10/00 ,  B33Y70/10 ,  B22F10/14 ,  B28B1/00 ,  B33Y80/00 ,  C09D133/14 ,  C09D131/02 ,  C09D175/04 ,  C09D139/06 ,  C09D161/04

摘要： Provided is a three-dimensional object producing method that includes applying an object forming liquid to powder including a base material and an organic material to form a solidified product, and removing the powder deposited on the solidified product from the solidified product using a powder removal liquid including an organic solvent. The following formulae are satisfied RED of non-forming part 0.55. The forming part is a portion of the powder to which the object forming liquid is applied and RED of the forming part is a distance between HSP of the forming part and HSP of the organic solvent. The non-forming part is a portion of the powder to which the object forming liquid is not applied and RED of the non-forming part is a distance between HSP of the non-forming part and HSP of the organic solvent.

公开(公告)号：US20230031852A1

公开(公告)日：2023-02-02

申请号：US17385091

申请日：2021-07-26

申请人： Concept Laser GmbH

发明人： Maik Zimmermann ,  Florian Bechmann

IPC分类号： G02F1/03 ,  G02F1/01 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/268 ,  B29C64/153 ,  B28B1/00 ,  B22F10/28 ,  B22F12/43 ,  B23K26/354

摘要： An irradiation device for an additively manufacturing apparatus may include a working beam generation device configured to provide a working beam, a modulation beam generation device configured to provide a modulation beam, and a solid-state optical modulator that includes a crystalline material that exhibits a change in refractive index in response to photoexcitation of free electrons within the crystalline material. The irradiation device may include a power source coupled to the solid-state optical modulator and configured to introduce free electrons into the crystalline material. The modulation beam may cause photoexcitation of the free electrons within the crystalline material. The photoexcitation of the free electrons within the crystalline material may cause the crystalline material to exhibit a change in refractive index. The working beam, when incident upon the crystalline material, may exhibit a change in one or more parameters, such as a phase shift, attributable at least in part to the change in refractive index exhibited by the crystalline material.

公开(公告)号：US20230031400A1

公开(公告)日：2023-02-02

申请号：US17443808

申请日：2021-07-27

申请人： Saudi Arabian Oil Company

发明人： Brian Parrott

IPC分类号： B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B28B1/00 ,  B29C64/118 ,  B29C64/218

摘要： An apparatus for three-dimensional (3D) printing of an object comprises a print head having at least one inlet for receiving material to be extruded and an outlet. The print head is configured, when the outlet is completely unblocked, to extrude a sheet of material of the width and height of the outlet. One or more actuators are positioned along the width of the print head and arranged to controllably block one or more sections along the width to prevent material from being extruded through the blocked sections, enabling selective extrusion of material through sections that are not blocked in order to selectively print a width of an entire layer of the object in a single pass. The print head and the object move relative to one another via one motion of the print head or of the object.

公开(公告)号：US11565346B2

公开(公告)日：2023-01-31

申请号：US16587146

申请日：2019-09-30

申请人： RENISHAW PLC

发明人： Marc Frank Dimter ,  Ralph Markus Mayer ,  Thomas Hess

IPC分类号： B23K26/142 ,  B23K26/342 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F12/00 ,  B23K26/08 ,  B28B1/00 ,  B22F10/10 ,  B22F10/322 ,  B22F10/28 ,  B22F10/366 ,  B23K26/14 ,  B22F12/70

摘要： Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described.

公开(公告)号：US20230021090A1

公开(公告)日：2023-01-19

申请号：US17784809

申请日：2021-01-12

申请人： Schaeffler Technologies AG & Co. KG

发明人： Peter Gebauer ,  Gregor Hullin ,  Claus Schaeperkoetter

IPC分类号： H02K15/02 ,  H02K15/12 ,  B33Y10/00 ,  B33Y80/00 ,  B22F10/18 ,  B28B1/00 ,  C22C38/06 ,  C22C38/02

摘要： A component, in particular a stator or a rotor, of an electric motor, in which a layer structure is generated is produced using additive manufacturing, by: forming, via alternate additive production, a layer assembly having first layers and second layers each first layer including a filament containing plastic and metal, and each second layer including a filament containing plastic and ceramic; heating the layer assembly a first temperature, at which the plastic is removed from the layers; further heating the layer assembly (2) to a second temperature, whereby the metal of the layer is sintered and an electrically insulating ceramic layer is obtained from the layer.

公开(公告)号：US20230001483A1

公开(公告)日：2023-01-05

申请号：US17365521

申请日：2021-07-01

申请人： Saudi Arabian Oil Company

发明人： Mohammed Ali Ibrahim Sayed ,  Yanhui Han ,  Brent Cooper ,  Rajesh Saini

IPC分类号： B22F10/14 ,  B33Y10/00 ,  B33Y80/00 ,  B28B1/00 ,  B29C64/165 ,  E21B43/267

摘要： A 3D printed proppant includes a core having support bars extending from the core to a shell, the shell encapsulating the core and the support bars. Another 3D printed proppant includes a porous core and a shell encapsulating the porous core, where the porous core has a porosity from 25% to 75%. The 3D printed proppant has a particle size from 8 mesh to 140 mesh. The core, the support bars, the porous core, the shell, or combinations thereof includes metal, polymer, ceramic, composite, or combinations thereof. Additionally, a method for producing a 3D printed proppant is provided.

公开(公告)号：US11541568B2

公开(公告)日：2023-01-03

申请号：US15763183

申请日：2016-01-28

申请人： Hewlett-Packard Development Company, L.P.

发明人： James Elmer Abbott, Jr. ,  Vladek Kasperchik

IPC分类号： B33Y30/00 ,  B33Y10/00 ,  B29C64/165 ,  B33Y70/10 ,  B33Y50/02 ,  B29C64/20 ,  B29C64/393 ,  B28B1/00 ,  B29C67/00 ,  B28B17/00

摘要： In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A detailing agent fluid is applied to a portion of the ceramic build material. The detailing agent fluid includes a cationic polymer. A liquid functional material, including an anionically stabilized susceptor material, is applied to another portion of the ceramic build material that is in contact with the portion of the ceramic build material having the detailing agent fluid thereon, such that at least some of the anionically stabilized susceptor material reacts with at least some of the cationic polymer that is in contact therewith to prevent spreading of the anionically stabilized susceptor material.

公开(公告)号：US20220411650A1

公开(公告)日：2022-12-29

申请号：US17779009

申请日：2020-11-24

申请人： Corning Incorporated

发明人： Laura Beth Cook ,  Laura Jeanne Cunneen

IPC分类号： C09D11/101 ,  C09D11/107 ,  C09D11/037 ,  B33Y10/00 ,  B33Y70/10 ,  B28B1/00 ,  B29C64/165

摘要： A composition can comprise particles comprising 5% by weight (wt %) or more, a photo-initiator, a curing agent, a dispersant, and an organic binder. The composition can be substantially solvent-free. In some embodiments, particles comprise 65 wt % or more. In some embodiments, the curing agent comprises dipropylene-glycol diacrylate. In some embodiments, the dispersant comprises a phosphate ester. In some embodiments, the organic binder comprises isobornyl methacrylate. In some embodiments, the composition comprises a viscosity from about 100 milliPascal-seconds to about 7,000 milliPascal-seconds. Methods of making a green body can comprise creating a composition, printing the green body using the composition, and curing the green body. Method of making a printed article can comprise creating a composition, printing a green body using the composition, curing the green body, heating the green body to remove the organic binder to form a porous article, and sintering the porous article to form the printed article.