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公开(公告)号：US20230146425A1
公开(公告)日：2023-05-11
申请号：US17879830
申请日：2022-08-03
发明人： Robert Ganter , Tim Hesse , Kevin Kruse , Gerhard Link , Steven Mueller , Marco Opitz , Bjoern Sautter , Fabian Goetzelmann , Nicolai Speker , Franziska Horer , Anh-Thu Tran , Benedikt Wessinger
IPC分类号： B22F12/50 , B23K26/342 , B23K26/14 , B22F12/40 , B33Y30/00
CPC分类号： B22F12/50 , B22F12/40 , B23K26/342 , B23K26/1464 , B33Y30/00
摘要： A material deposition unit includes a radiation unit designed to emit electromagnetic radiation in a directed manner onto a workpiece along a beam axis, and a powder discharge device that has multiple powder discharge units configured to discharge powder in a directed form onto the workpiece through powder-outlet openings. The material deposition unit further includes a powder division unit having multiple powder channels. A number of powder channels corresponds to a number of powder discharge units. The powder division unit is designed to distribute a central powder stream guided to a feed channel uniformly over the powder channels. Each respective powder channel is connected to a respective powder discharge unit by an exchangeable connecting element. At least one powder discharge unit has an exchangeable powder discharge element, which is elongate, has a first end and a second end, and is arranged at least partially within the corresponding powder discharge unit.
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2.发明公开公开(公告)号：US20240033845A1
公开(公告)日：2024-02-01
申请号：US18021271
申请日：2021-10-06
发明人： Daniel Brueck , Knut Krause , André Schoebel
摘要： In a method of operating an irradiation system (10) for irradiating layers of a raw material powder with electromagnetic or particle radiation in order to produce a three-dimensional work piece (110) it is determined whether a region of a raw material powder layer (11) to be selectively irradiated with electromagnetic or particle radiation in accordance with a geometry of a corresponding layer of the work piece (110) to be produced is affected or substantially unaffected by particulate impurities. Upon selectively irradiating the region of the raw material powder layer (11) with electromagnetic or particle radiation, an energy density applied to the region of the raw material powder layer (11) by a radiation beam (14a, 14b) is controlled in such a manner that the energy density is higher in case it is determined that the region of the raw material powder layer (11) is affected by particulate impurities than in case it is determined that the region of the raw material powder layer (11) is substantially unaffected by particulate impurities.
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公开(公告)号：US11731198B2
公开(公告)日：2023-08-22
申请号：US16545649
申请日：2019-08-20
发明人： Scott Wigen , Rudy Pitera , Ryan P. Chou , Greg A. Seidel , Kent A. Ramthun
IPC分类号： B22F12/40 , B29C64/153 , B29C64/268 , B33Y30/00 , B29C64/286 , B22F10/00 , B23K26/06 , H01S3/00 , B33Y10/00
CPC分类号： B22F10/00 , B22F12/40 , B23K26/0643 , B29C64/153 , B29C64/268 , H01S3/0064 , B22F2301/10 , B22F2301/255 , B29C64/286 , B33Y10/00 , B33Y30/00
摘要： An additive manufacturing apparatus including an energy source configured for transmitting a laser, a build plate configured to have a powder configured to be heated by the laser for additive manufacturing, at least one mirror positioned between the energy source and the build plate, the at least one mirror configured to direct the laser from the energy source to the build plate, and an optical isolator configured to reduce energy bounce back into the energy source.
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公开(公告)号：US20240123685A1
公开(公告)日：2024-04-18
申请号：US18286514
申请日：2022-01-21
IPC分类号： B29C64/291 , B22F12/40 , B28B1/00 , B33Y30/00
CPC分类号： B29C64/291 , B22F12/40 , B28B1/001 , B33Y30/00 , B29C64/165
摘要： According to an example, a heating device comprises a plurality of light emitting arrays to emit a respective irradiance associated with a calibration profile and a power source electrically connected to the plurality of light emitting arrays, wherein the irradiances emitted by the plurality of light emitting arrays result in a substantially spatially uniform irradiance towards a target surface.
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公开(公告)号：US11919074B2
公开(公告)日：2024-03-05
申请号：US17713568
申请日：2022-04-05
发明人： Simon Fielder
CPC分类号： B22F10/14 , B22F1/145 , B22F12/40 , B22F12/50 , B22F2998/10 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y70/00
摘要： An additive manufacturing method using an inkjet printhead supplied with a binder fluid, said method comprising the steps of: (a) providing a layer of powdered build material including a monomer; (b) selectively jetting the binder fluid onto predetermined regions of the layer of powdered build material, the binder fluid comprising a catalyst; (c) optionally exposing the layer of powdered build material to an energy source to initiate polymerization of the monomer; and (d) optionally repeating steps (a) to (c).
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公开(公告)号：US20240246152A1
公开(公告)日：2024-07-25
申请号：US18624762
申请日：2024-04-02
发明人： Drew W. Kissinger , Susanne Kras , James A. DeMuth , Andrew J. Bayramian , Francis L. Leard , Cote LeBlanc
IPC分类号： B22F12/20 , B22F12/40 , B29C64/268 , B29K105/00 , B33Y30/00 , B33Y70/00 , G02B7/02
CPC分类号： B22F12/20 , B22F12/40 , B29C64/268 , B33Y30/00 , B33Y70/00 , G02B7/028 , B29K2105/251
摘要： An additive manufacturing system includes a high power laser to form a laser beam directed against a light valve. An active light valve cooling system is arranged to remove heat from the light valve and a heat exchanger is connected to the active light valve cooling system. A heat exchange fluid is circulated through the active light valve cooling system and the heat exchanger.
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公开(公告)号：US12005636B2
公开(公告)日：2024-06-11
申请号：US16759526
申请日：2018-10-30
申请人： IHI Corporation
发明人： Masato Yamada , Masashi Mouri , Yuki Kozue
IPC分类号： B29C64/153 , B22F10/28 , B22F10/37 , B22F10/38 , B22F10/85 , B22F12/13 , B22F12/17 , B22F12/40 , B22F12/90 , B23K15/00 , B33Y10/00 , B33Y30/00
CPC分类号： B29C64/153 , B22F10/28 , B22F10/37 , B22F10/38 , B22F10/85 , B22F12/13 , B22F12/17 , B22F12/40 , B22F12/90 , B23K15/0033 , B23K15/0086 , B33Y10/00 , B33Y30/00 , B22F2999/00 , B22F10/30 , B22F12/13 , B22F12/50 , B22F2203/11 , B22F2203/03
摘要： An additive manufacturing device performs manufacturing of an additively manufactured article by supplying a powder material to an irradiation region of an electron beam, laying and leveling the powder material, irradiating the powder material with the electron beam, and melting the powder material. The additive manufacturing device determines whether or not the powder material has scattered during manufacturing of the article. When it is determined that the powder material has scattered, an irradiation region R is heated by a heater before a new powder material is supplied to the irradiation region R. Manufacturing of the article is restarted after the new powder material has been supplied to the heated irradiation region.
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公开(公告)号：US11993831B1
公开(公告)日：2024-05-28
申请号：US17127796
申请日：2020-12-18
IPC分类号： C22C21/00 , B22F10/10 , B22F10/20 , B22F10/31 , B22F10/36 , B22F12/00 , B22F12/40 , C22C1/04 , C22C5/06
CPC分类号： C22C21/00 , B22F10/10 , B22F10/20 , B22F10/31 , B22F10/36 , B22F12/00 , B22F12/40 , C22C1/0416 , C22C5/06 , B22F2203/00 , B22F2301/00 , C22C2202/00
摘要： Printable high-strength alloys, including aluminum alloys can be produced in an additive manufacturing process. Such alloys can include aluminum-silver (“Al—Ag”) alloys that are produced by a laser melting process using a powder bed fusion. The results of the process and the characteristics of the produced alloy can be determined by controlling at least an energy beam power, an energy beam speed, and/or an energy beam size. The operational parameters can be controlled with high precision to produce a printable, high-strength aluminum alloy.
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9.发明公开公开(公告)号：US20240066597A1
公开(公告)日：2024-02-29
申请号：US17895870
申请日：2022-08-25
申请人： The Boeing Company
CPC分类号： B22F10/36 , B22F12/30 , B22F12/40 , B22F12/50 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02
摘要： Methods of additively manufacturing a manufactured component and systems that perform the methods. The methods include determining an energy application parameter at an addition location on a previously formed portion of the manufactured component. The methods also include supplying a feedstock material to the addition location. The methods further include delivering, from an energy source and to the addition location, an amount of energy sufficient to form a melt pool of the feedstock material at the addition location. The amount of energy is based, at least in part, on the energy application parameter. The methods also include consolidating the melt pool with a previously formed portion to form an additional portion of the manufactured component. The delivering includes delivering the amount of energy to the addition location along an axis of incidence, and the energy application parameter includes a directionality parameter that is based on the axis of incidence.
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公开(公告)号：US12083597B2
公开(公告)日：2024-09-10
申请号：US17978777
申请日：2022-11-01
发明人： James J. Murray , Shashwat Swami Jaiswal , Rajesh Kumar Venkata Gadamsetty , Hiteshkumar Rameshchandra Mistry
摘要： A gas manifold for single-nozzle deposition chambers comprising a base having a top surface and bottom surface defining a thickness; a primary nozzle having an inlet and outlet extending through the thickness of the base; and a secondary nozzle having an inlet extending partially through the top surface of the base and at least one channel extending a distance from a sidewall of the base having an outlet, the channel in fluid communication with the inlet of the secondary nozzle. The inlet of the primary nozzle has a hollow protrusion extending from the top surface of the base into the gas feed. The channel of the secondary nozzle includes a bend between the sidewall of the base and the outlet configured to pass between a first direct energy source and second direct energy source, the first energy source and second energy source disposed on a top wall of a chamber.
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