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公开(公告)号：US20240286190A1
公开(公告)日：2024-08-29
申请号：US18571491
申请日：2022-06-24
申请人： QDOT TECHNOLOGY LTD
CPC分类号： B22F3/1017 , B22F5/10 , B22F7/062 , B22F2998/10 , B33Y10/00 , B33Y80/00
摘要： The present invention includes a novel sintered component (1) and a method of production thereof. The method including creating (100) a plurality of sub¬components (10) using binder jetting additive manufacturing; the sub-components (10) having an outer surface (20) including one or more protruding portions (22, 24) having one or more bonding faces (26) configured to interface with at least one of the one or more bonding faces (26) of a neighbouring sub-component (1) and a recessed portion (28) for defining a cavity (30), in the sintered component (1), between sub-components (10); heating the plurality of sub-components (10) in a first heating step (104); assembling (106) said sub-components (10); heating the assembly of sub-components in a second heating step (108).
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2.发明公开公开(公告)号：US20240181503A1
公开(公告)日：2024-06-06
申请号：US18441951
申请日：2024-02-14
申请人： Desktop Metal, Inc.
发明人： Jamison Go , Michael Santorella , Jonah Samuel Myerberg , Matthew McCambridge , Alexander LeGendre , Joseph Gabay , Robert J. Nick , Michael Goldblatt
摘要： Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts by directing gas onto, or near to, the powder. While fragile green parts, such as green parts produced by binder jetting, may be fragile with respect to scraping or impacts, such parts may nonetheless be resistance to damage from directed gas, even if directed at a high pressure. Techniques for depowdering through directed application of gas may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US11964324B2
公开(公告)日：2024-04-23
申请号：US16943930
申请日：2020-07-30
申请人： The Boeing Company
IPC分类号： B22F10/00 , B22F3/10 , B22F10/10 , B22F10/28 , B22F10/364 , B22F12/45 , B22F12/47 , B33Y10/00 , B33Y30/00 , B33Y50/02
CPC分类号： B22F10/00 , B22F3/1017 , B22F10/10 , B22F10/28 , B22F10/364 , B22F12/45 , B22F12/47 , B22F2202/11 , B22F2203/11 , B22F2301/205 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： Systems and methods additively manufacturing an object by applying heat to a first plurality of metallic particles in a powder bed using a first heat source, wherein the first heat source is one of multiple heat sources configured into an array, and the first heat source generates a first melt pool. Heat is simultaneously applied to a second plurality of metallic particles in the powder bed using a second heat source of the multiple heat sources in the array to generate a second melt pool. The first plurality of metallic particles are separated from the second plurality of metallic particles by a distance, wherein the distance and an amount of heat from each heat source is controlled to generate a combined melt pool that is larger in size and encompasses the first and second melt pools. The combined melt pool is allowed to solidify to form the object.
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公开(公告)号：US20240062954A1
公开(公告)日：2024-02-22
申请号：US18499855
申请日：2023-11-01
发明人： Feng XU , Meng LONG , Shimao SHEN , Yuanhu HU
CPC分类号： H01F41/0293 , B22F1/107 , B22F3/1017 , B22F7/008 , C22C38/005 , H01F1/053 , C22C38/10
摘要： The application discloses a coating material for fabricating rare earth magnets and a method using the coating material to prepare neodymium-iron-boron (NdFeB) magnets having high coercive force. The coating material includes alloy powder A and low-melting-point metal powder B. The alloy powder A is heavy rare earth element R powder, or rare earth-metal alloy (RM) powder, or rare earth-metal-hydrogen alloy (RMH) powder. The heavy rare earth elements are Dy and/or Tb, metal is Fe or Co, or an alloy of Fe and Co, and H is hydrogen element. The low-melting-point metal powder B is one or two of Zn, Al, and Ga. The preparation method includes the following steps: the coating material is mixed into a slurry, and the slurry is coated on the surface of NdFeB magnet, and then apply a two-stage diffusion heat treatment to the magnet, followed by an annealing process to obtain a high-coercivity NdFeB magnet.
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公开(公告)号：US11891556B2
公开(公告)日：2024-02-06
申请号：US18304004
申请日：2023-04-20
申请人： NICHIA CORPORATION
CPC分类号： C09K11/77348 , B22F3/1017 , C09K11/7731 , C09K11/7739 , C09K11/77346 , C09K11/77347
摘要： A nitride phosphor having a composition containing Eu, Si, Al, N, and a group 2 element including at least one selected from the group consisting of Mg, Ca, Sr, and Ba. In the composition, a ratio of a total molar content of the group 2 element and Eu to a molar content of Al is 0.8 or more and 1.1 or less, a molar ratio of Eu is 0.002 or more and 0.08 or less, a molar ratio of Si is 0.8 or more and 1.2 or less, and a total molar ratio of Si and Al is 1.8 or more and 2.2 or less. The nitride phosphor has a first peak in a range of 17° 2θ or more and 19° 2θ or less and a second peak in a range of 34° 2θ or more and 35.5° 2θ or less in a CuKα powder X-ray diffraction pattern.
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公开(公告)号：US20190187639A1
公开(公告)日：2019-06-20
申请号：US16224432
申请日：2018-12-18
申请人： Desktop Metal, Inc.
发明人： Nihan Tuncer , Brian Kernan , Animesh Bose , Mark Sowerbutts
CPC分类号： G05B15/02 , B22F3/003 , B22F3/008 , B22F3/1007 , B22F3/1017 , B22F3/1021 , B22F3/24 , B22F2203/11 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02 , F27D19/00 , F27D21/00 , F27D2019/0003 , F27D2019/0096 , G05B13/042 , G06F3/0482 , G06F3/04847
摘要： A system for generating a user-adjustable furnace profile, comprises a user interface configured to receive one or more materials properties from a user, a processor, and a memory with computer code instructions stored thereon. The memory is operatively coupled to the processor such that, when executed by the processor, the computer code instructions cause the system to implement communicating with a furnace to ascertain one or more thermal processes associated with the furnace, identifying one or more object characteristics associated with an object to be processed by furnace, and determining a thermal processing parameter profile of at least one thermal processing parameter corresponding to each of the thermal processes, based on (i) the one or more part characteristics and (ii) the one or more materials properties, the thermal processing parameter profile characterizing a cycle of the one or more thermal processes.
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公开(公告)号：US20180326487A1
公开(公告)日：2018-11-15
申请号：US15977896
申请日：2018-05-11
申请人： MTU Aero Engines AG
CPC分类号： B22F3/1055 , B22F3/003 , B22F3/1017 , B22F7/06 , B22F2003/1056 , B22F2003/1057 , B23K26/034 , B23K26/342 , B23K26/60 , B23K26/702 , B23K31/125 , B23K2103/26 , B28B1/001 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/00 , B33Y50/02 , H05B6/10
摘要： The invention relates to a layer-by-layer construction method for the additive manufacture of at least one region of a component. The layer-by-layer construction method comprises at least the following steps: a) application of at least one powder layer of a metallic and/or intermetallic material onto at least one buildup and joining zone of at least one lowerable building platform; b) layer-by-layer and local melting and/or sintering of the material for the formation of a component layer by selective exposure of the material with at least one high-energy beam in accordance with a predetermined exposure strategy; c) layer-by-layer lowering of the building platform by a predefined layer thickness; and d) repetition of steps a) to d) until the component region has been finished. The invention further relates to a layer-by-layer construction apparatus for the additive manufacture of at least one region of a component by an additive layer-by-layer construction method.
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公开(公告)号：US20180304406A1
公开(公告)日：2018-10-25
申请号：US15493313
申请日：2017-04-21
IPC分类号： B23K26/342 , B23K15/00 , B23K15/02 , B23K26/00 , B23K26/354 , B23K26/082 , B33Y30/00 , B33Y50/02
CPC分类号： B23K26/342 , B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B22F2203/03 , B22F2998/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F3/1017 , B22F3/16
摘要： In some cases, an additive manufacturing (AM) system includes: a process chamber for additively manufacturing a component, the process chamber having: a build platform; at least one melting beam scanner configured to emit a melting beam for melting powder on the build platform; an applicator for applying layers of powder to the build platform; and a reservoir for storing powder; and a control system coupled with the set of melting beam scanners, the control system configured to: apply the melting beam to a layer of powder on the build platform along a primary melting path; and apply the melting beam to the layer of powder on the build platform along a re-melting path after applying the melting beam along the primary melting path, the re-melting path overlapping a portion of the primary melting path and applied only in an area proximate a perimeter of the component.
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公开(公告)号：US20180221951A1
公开(公告)日：2018-08-09
申请号：US15749129
申请日：2016-07-29
发明人： Kenichi FUJIKAWA , Izumi OZEKI , Tomohiro OMURE , Miho YAMAGUCHI , Toshiaki OKUNO , Hiroshi MATSUO
CPC分类号： B22F3/1017 , B22F1/0011 , B22F1/0059 , B22F1/0062 , B22F3/10 , B22F3/1021 , B22F3/164 , B22F5/00 , B22F2003/026 , B22F2009/043 , B22F2009/044 , B22F2009/048 , B22F2202/05 , B22F2207/11 , B22F2998/10 , B22F2999/00 , C22C38/00 , C22C2202/02 , H01F1/055 , H01F1/0571 , H01F1/08 , H01F1/083 , H01F1/086 , H01F7/02 , H01F41/0266 , H01F41/0273 , B22F3/02 , B22F2003/248
摘要： Provided is a heretofore non-existing, novel rare-earth sintered magnet having both of an extremely low carbon content and an extremely small average particle size of magnet material particles. The sintered body for forming a rare-earth magnet comprises a large number of magnet material particles sintered together, wherein each of the magnet material particles contains a rare-earth substance and has an easy magnetization axis. This sintered body for forming a rare-earth magnet has a carbon content of 500 ppm or less, and the magnet material particles have an average particle size of 2 μm or less.
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公开(公告)号：US20180161880A1
公开(公告)日：2018-06-14
申请号：US15562561
申请日：2016-03-30
CPC分类号： B22F5/006 , B22F1/0059 , B22F1/0062 , B22F3/16 , B22F3/225 , B22F2301/10 , B22F2301/15 , B22F2998/10 , B22F2001/0066 , B22F3/02 , B22F3/1017
摘要： A flexible porous metal foil sheet made of a metal porous material which use a solid solution alloy, a metal element of a face-centered cubic structure or a metal element of a body-centered cubic structure as the matrix phase, wherein the thickness of the sheet is greater than 200 μm and less than or equal to 1500 μm, the average aperture is 0.05˜100 μm, and the porosity is 15%˜70%. The method for making the flexible porous metal foil comprises: (1) making viscous suspension or muddy paste of raw material powder that will form the metal porous material using a dispersing agent and a binding agent; (2) injecting the suspension or paste into a mold for making membrane, and drying the suspension or paste to form a homogeneous membrane; (3) pressing the membrane to improve the stacking density of the powder particles; and (4) sintering the pressed membrane to obtain the flexible porous metal foil. The flexible porous metal foil has more uniform aperture distribution, and better flatness of the foil.
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