公开(公告)号：US12042981B1

公开(公告)日：2024-07-23

申请号：US18235586

申请日：2023-08-18

申请人： Atheneum Optical Sciences, LLC

发明人： W. Anthony Martin ,  Randall Pugh ,  Ganesh Narayanan Kumar

IPC分类号： B29C64/106 ,  B29C64/371 ,  B33Y10/00 ,  B33Y80/00 ,  B29K105/00 ,  B29L11/00

CPC分类号： B29C64/106 ,  B29C64/371 ,  B33Y10/00 ,  B33Y80/00 ,  B29K2105/0002 ,  B29L2011/0016

摘要： A multifocal ophthalmic lens with multiple sub-optical elements along a same optical path and methods for generating the multifocal ophthalmic lens. The method includes intermittent pinning of deposited polymerizable mixture and final cure of the deposited polymerizable mixture. The intermittent pinning may form a sub-optical element. A pattern of multiple defined areas may be manufactured, with each area representing an amount of energy transmissibility associated with that area. Each area may have a light value based upon a scale, such as an 8 bit, 16 bit, 32 bit, 64 bit scale or other scale. In some embodiments, each area may refer to a smallest single component of a digital image.

公开(公告)号：US12025564B2

公开(公告)日：2024-07-02

申请号：US18312873

申请日：2023-05-05

申请人： The Boeing Company

发明人： Morteza Safai

IPC分类号： G01N21/88 ,  B29C64/371 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01N21/95

CPC分类号： G01N21/8806 ,  B29C64/371 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01N21/8851 ,  G01N21/95 ,  G01N2201/06113 ,  G01N2201/0627 ,  G01N2201/0628

摘要： A method for real-time surface imperfection detection for additive manufacturing and 3-D printing parts is provided. The method includes directing a first light radiation using one or more illumination sources, wherein the first light radiation illuminates a target area of a part being manufactured in a uniform chromatic light such that the target area appears to have a substantially uniform monochromatic color; capturing a current image of a second light radiation that is scattered or reflected by the target area using one or more feedback cameras; and analyzing the current image of the second light radiation using at least one of the one or more feedback camera with a previously acquired image to determine whether a surface imperfection exists or does not exist.

公开(公告)号：US12011880B2

公开(公告)日：2024-06-18

申请号：US16884534

申请日：2020-05-27

申请人： VulcanForms Inc.

发明人： Matthew Sweetland

IPC分类号： B29C64/393 ,  B29C64/153 ,  B29C64/214 ,  B29C64/236 ,  B29C64/245 ,  B29C64/25 ,  B29C64/371 ,  B33Y10/00

CPC分类号： B29C64/393 ,  B29C64/214 ,  B29C64/236 ,  B29C64/245 ,  B29C64/153 ,  B29C64/25 ,  B29C64/371 ,  B33Y10/00

摘要： Disclosed embodiments relate to recoater systems for use with additive manufacturing systems. A recoater assembly may be adjustable along multiple degrees of freedom relative to a build surface, which may allow for adjustment of a spacing between the recoater assembly and the build surface and/or an orientation of the recoater assembly relative to an orientation of the build surface. In some embodiments, the recoater assembly may be supported by four support columns extending above the build surface, and attachments between the recoater assembly and the support columns may be independently adjustable to adjust the recoater relative to the build surface.

公开(公告)号：US12011873B2

公开(公告)日：2024-06-18

申请号：US16712355

申请日：2019-12-12

申请人： Seurat Technologies, Inc.

发明人： Ning Duanmu ,  James A. DeMuth ,  Andrew J. Bayramian ,  Yiyu Shen ,  Drew W. Kissinger

IPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/31 ,  B22F10/32 ,  B22F12/41 ,  B22F12/45 ,  B23K26/12 ,  B23K26/14 ,  B23K26/342 ,  B29C64/364 ,  B29C64/371 ,  B33Y10/00 ,  B33Y40/00 ,  B22F10/77 ,  B22F12/90

CPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/31 ,  B22F10/32 ,  B22F12/41 ,  B22F12/45 ,  B23K26/125 ,  B23K26/128 ,  B23K26/1464 ,  B23K26/342 ,  B29C64/364 ,  B29C64/371 ,  B33Y10/00 ,  B33Y40/00 ,  B22F10/77 ,  B22F12/90 ,  B22F2999/00 ,  B22F10/28 ,  B22F10/32 ,  B22F2201/12 ,  B22F3/15 ,  B22F2999/00 ,  B22F10/32 ,  B22F2203/00 ,  B22F2202/13

摘要： A method of additive manufacture is disclosed. The method can include providing an enclosure surrounding a powder bed and having an atmosphere including helium gas. A high flux laser beam is directed at a defined two dimensional region of the powder bed. Powder is melted and fused within the defined two dimensional region, with less than 50% by weight of the powder particles being displaced into any defined two dimensional region that shares an edge or corner with the defined two dimensional region where powder melting and fusing occurs.

公开(公告)号：US20240157648A1

公开(公告)日：2024-05-16

申请号：US18502639

申请日：2023-11-06

申请人： Nikon SLM Solutions AG

发明人： Birk Hoppe ,  Karsten Neumann ,  Tobias Schmithüsen

IPC分类号： B29C64/371 ,  B29C64/153 ,  B29C64/25 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/371 ,  B29C64/153 ,  B29C64/25 ,  B33Y10/00 ,  B33Y30/00

摘要： A process chamber housing for an additive manufacturing apparatus with a process chamber (having a bottom, a ceiling, and side walls that jointly enclose a volume of the process chamber), an inert gas inlet in a front wall of the side walls (to provide an inert gas into the process chamber) and an inert gas outlet in a rear wall of the side walls (to release the inert gas out of the process chamber). When the inert gas inlet and the inert gas outlet are positioned at opposite sides of the opening of the housing and face towards each other to establish an inert gas flow in a main flow direction from the inert gas inlet over the opening to the inert gas outlet, the quality of laser beam(s) employed in the additive manufacturing process is improved.

公开(公告)号：US11981082B2

公开(公告)日：2024-05-14

申请号：US16605837

申请日：2018-03-29

申请人： EOS GmbH Electro Optical Systems

发明人： Martin Schade ,  Robert Achim Domröse ,  Martin Leuterer ,  Michael Göth ,  Maximilian Mittermüller ,  Markus Kuchenbaur

IPC分类号： B29C64/371 ,  B22F10/28 ,  B22F10/322 ,  B29C64/153 ,  B29C64/393 ,  B22F10/366 ,  B22F10/80 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y50/02

CPC分类号： B29C64/371 ,  B22F10/28 ,  B22F10/322 ,  B29C64/153 ,  B29C64/393 ,  B22F10/366 ,  B22F10/80 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y50/02

摘要： A control method serves for controlling at least one solidification device of an additive manufacturing device for manufacturing a three-dimensional object by means of an additive layer build method in which at least one object is manufactured by repeated application of a layer of a building material to a build area and by selective solidification of the applied layer at positions corresponding to a cross-section of the object to be manufactured, wherein a gas having a plurality of flow directions which essentially are not aligned in the same direction flows across the build area. The method includes receiving and/or determining a distribution of the flow directions of the gas above the build area, assigning a reference flow direction to an area of the build area in dependence on the distribution of the flow directions above the area, controlling the solidification device to solidify at least a part of the cross-section of the object to be produced in dependence on a reference flow direction above the area of the build area in which the respective part of the cross-section is positioned.

公开(公告)号：US11911955B1

公开(公告)日：2024-02-27

申请号：US17111431

申请日：2020-12-03

申请人： Triad National Security, LLC

发明人： Kyle Cluff ,  Matthew Lee ,  Nicholas Parra-Vasquez ,  Matthew Crall

IPC分类号： B29C64/255 ,  B29C64/124 ,  B29C64/232 ,  B29C64/245 ,  B29C64/264 ,  B29C64/343 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/124 ,  B29C64/232 ,  B29C64/245 ,  B29C64/255 ,  B29C64/264 ,  B29C64/343 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00

摘要： Disclosed herein are embodiments of a system for use in additive manufacturing methods. The system can comprise a first container, and a first fluid and a second fluid forming a fluid-fluid interface within the first container. The first fluid is between the fluid-fluid interface and the transparent portion of the first container and configured to remove oxygen from the second fluid at the fluid-fluid interface to facilitate polymerization of a monomeric component in the second fluid. The system can also comprise a circulation system configured to circulate the first fluid through the first container such that the first fluid flows between the fluid-fluid interface and the inner surface of the transparent portion of the first container.

公开(公告)号：US11890807B1

公开(公告)日：2024-02-06

申请号：US16120050

申请日：2018-08-31

申请人： Blue Origin, LLC

发明人： Landon Luick ,  Steven James Craigen

IPC分类号： B29C64/40 ,  B29C64/135 ,  B29C64/371 ,  B29C64/393 ,  B29C64/214 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

CPC分类号： B29C64/135 ,  B29C64/214 ,  B29C64/371 ,  B29C64/393 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

摘要： Systems and methods for controlling additive manufacturing processes are disclosed. The systems can include multiple laser directors, soot-removal devices, magnetic chucks, replenishable powder distribution blades, automated powder level detectors, and/or overall process automation techniques.

公开(公告)号：US11806787B2

公开(公告)日：2023-11-07

申请号：US17540182

申请日：2021-12-01

申请人： Sodick Co., Ltd.

发明人： Shuichi Kawada

IPC分类号： B22F12/70 ,  B22F12/49 ,  B33Y30/00 ,  B29C64/371 ,  B29C64/153

CPC分类号： B22F12/70 ,  B22F12/49 ,  B29C64/153 ,  B29C64/371 ,  B33Y30/00

摘要： An additive manufacturing apparatus of the disclosure includes: a supply port that supplies an inert gas to a chamber; a supply nozzle which is attached to the supply port and releases two layers of airflow having different speeds toward the window; and a discharge port that discharges the inert gas from the chamber. The supply nozzle has: a first nozzle member having an inlet surface connected to the supply port; a net-like member which has a plurality of through holes and is attached in a manner of covering a portion of a lower part of an outlet surface of the first nozzle member; and a second nozzle member that is attached to the upper side of the outlet surface of the first nozzle member.

公开(公告)号：US20230330931A1

公开(公告)日：2023-10-19

申请号：US18212871

申请日：2023-06-22

申请人： SLM Solutions Group AG

发明人： Toni Adam Krol ,  Gesa Rolink ,  Bodo Haack ,  Birk Hoppe

IPC分类号： B29C64/232 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/393 ,  B29C64/371 ,  B28B1/00 ,  B28B17/00 ,  B22F10/28 ,  B22F12/00 ,  B22F12/70 ,  B22F12/86 ,  B22F10/322

CPC分类号： B29C64/232 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/393 ,  B29C64/371 ,  B28B1/001 ,  B28B17/0081 ,  B22F10/28 ,  B22F12/222 ,  B22F12/224 ,  B22F12/38 ,  B22F12/70 ,  B22F12/86 ,  B22F10/322 ,  B22F12/41

摘要： The invention relates to a device (1) for producing three-dimensional workpieces (15), comprising a carrier (7) for receiving raw material powder (9), a build chamber wall (11, 11a, 11b) which extend substantially vertically and which is adapted to laterally delimit and support the raw material powder (9) applied to the carrier (7); an irradiation unit (17) for selectively irradiating the raw material powder (9) applied to the carrier (7) with electromagnetic radiation or particle radiation in order to produce on the carrier (7) a workpiece (15) manufactured from the raw material powder (9) by an additive layer building method, wherein the irradiation unit (17) comprises at least one optical element; and a vertical movement device (31) which is adapted to move the irradiation unit (17) vertically relative to the carrier (7). The build chamber wall (11, 11a, 11b) and the carrier (7) are adapted to be connected to one another in a stationary manner during the vertical movement of the irradiation unit (17) so that the vertical movement takes place relative to the carrier (7) and relative to the build chamber wall (11, 11a, 11b).