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公开(公告)号：US20220355385A1
公开(公告)日：2022-11-10
申请号：US17313832
申请日：2021-05-06
发明人： Wei Chen , Navin Sakthivel , Aaron Avagliano
摘要： A method of additive manufacturing may include disposing a layer of a powder material on a surface of a build platform of an additive manufacturing apparatus. The method may also include placing a compaction platform comprising one or more transducers in contact with an upper surface of the layer of the powder material. The method may additionally include activating at least one transducer of one or more transducers of the compaction platform of the compactor to densify a portion of the layer of the powder material below the at least one transducer while at least the weight of the compaction platform applies a normal force to the layer of the powder material. Related systems for densifying additively manufactured components are also described.
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公开(公告)号：US11623279B2
公开(公告)日：2023-04-11
申请号：US16429490
申请日：2019-06-03
发明人： David W. Morganson
IPC分类号： B22F10/20 , B23K26/142 , B22F10/28 , B22F10/73 , B22F12/60 , B22F12/50 , B23K26/14 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： An additive manufacturing device includes a recoater configured to push powder onto a build platform. The recoater defines an advancing direction for pushing powder. A gas mover is mounted to the recoater and is configured to flow gas to remove powder from the build platform as the recoater moves along the advancing direction.
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公开(公告)号：US20220105572A1
公开(公告)日：2022-04-07
申请号：US17480781
申请日：2021-09-21
申请人： ROLLS-ROYCE plc
发明人： David M J POOLE
IPC分类号： B22F12/90 , B33Y10/00 , B33Y30/00 , B33Y50/00 , B22F10/28 , B22F10/80 , B22F12/60 , B22F12/49 , G01N23/223
摘要： A system for manufacturing a component includes a build platform, a powder delivery unit, an energy unit, at least one analyser, and a controller. The build platform has a build surface. The powder delivery unit is configured to deposit successive layers of a powdered material on the build surface of the build platform to form a powder bed. The energy unit is configured to selectively direct an energy beam to one or more predetermined portions of each successive layer of the powder bed to fuse the powdered material. The at least one analyser is configured to direct an X-ray beam to the powdered material and detect an X-ray fluorescence emitted by the powdered material in response to being excited by the X-ray beam. The controller is configured to determine a contamination of the powdered material based on the detection of the X-ray fluorescence.
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公开(公告)号：US20220009000A1
公开(公告)日：2022-01-13
申请号：US17292614
申请日：2019-11-06
发明人： Peter Koerner , Ralf Frank
摘要： A powder application device (10) for use in a system (100) for producing a three-dimensional workpiece using a generative layering process comprises a spreading member (12). The spreading member (12) is movable across a surface of a carrier (116) for depositing a raw material powder for producing a workpiece by a generative layering method onto the surface of the carrier (116). Furthermore, the powder application device (10) comprises a powder entrainer (16) which is movable across a carrier plane (E) and which, in the region of a surface (20) facing the carrier plane (E), is provided with a surface profile (22). The surface profile (20) comprises an entraining element (24a, 24b, 24c) and a passage channel (26a, 26b, 26c). The entraining element (24a, 24b, 24c) and the passage channel (26a, 26b, 26c) are shaped and arranged in such a way that, with respect to the movement of the powder entrainer (16) across the carrier plane (E), powdery material deposited in front of the powder entrainer (16) on the carrier plane (E) is entrained by the entraining element (24a, 24b, 24c) during a movement of the powder entrainer (16) across the carrier plane (E) in a first direction of movement (R1), and is guided through the passage channel (26a, 26b, 26c) during a movement of the powder entrainer (16) across the carrier plane (E) in a second direction of movement (R2) opposite to the first direction of movement (R1).
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公开(公告)号：US20220410268A1
公开(公告)日：2022-12-29
申请号：US17847793
申请日：2022-06-23
申请人： Michael A. Perrone
发明人： Michael A. Perrone
IPC分类号： B22F10/22 , B22F10/368 , B22F12/60 , B22F12/90
摘要： A molten metal print deposition device includes a reservoir in fluid communication with a deposition head for controlled deposition of a molten metal print medium defined by molten feedstock, and a capillary structure adapted to maintain the molten feedstock from the melt reservoir in a fluidic state for directing and depositing the feedstock onto a substrate. A print medium is defined by an alloy heated to a fluid state in a temperature range defined by but above a liquidus and solidus. A thermal source and control circuit maintain the molten feedstock at a temperature above the liquidus of the print medium during deposition.
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公开(公告)号：US11471945B2
公开(公告)日：2022-10-18
申请号：US17031950
申请日：2020-09-25
申请人： SODICK CO., LTD.
发明人： Naoto Nakamura , Shuji Okazaki
IPC分类号： B22F10/00 , B23K37/00 , B22F12/20 , B29C64/218 , B22F10/10 , B33Y30/00 , B23K103/04 , B23K26/342 , B23K15/00 , B22F12/63 , B22F12/60
摘要： A lamination molding apparatus includes: a material layer forming device that forms a material layer in a molding region; an irradiator that sinters or melts the material layer to form a solidified layer; and a cooling device that cools, to a cooling temperature, at least a part including an upper surface of a solidified body. The material layer forming device includes: a base having the molding region, a recoater head disposed on the base, a recoater head driving device that reciprocates the recoater head in a horizontal direction, and a blade that is arranged on the recoater head and that levels material powder to form the material layer. The cooling device includes: a cooling body that is controlled to the cooling temperature and comes into contact with the upper surface of the solidified body, and a mounting member that mounts the cooling body to the recoater head.
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公开(公告)号：US20220288695A1
公开(公告)日：2022-09-15
申请号：US17635442
申请日：2020-09-17
申请人： SHANGHAI UNIVERSITY
发明人： Zhongming REN , Jiang WANG , Chaoyue CHEN , Sansan SHUAI , Tao HU , Ruixin ZHAO , Wei LIU
摘要： A high-energy beam additive manufacturing forming device and forming method, comprising a magnetic field unit for assisting additive forming, and further comprising a forming base (6) for placing a material (12) to be processed, and a high-energy beam generation device which emits a high-energy beam, acts on the material (12) to be processed and forms a molten pool (15). The magnetic field unit comprises a first magnetic field generating device (7), and the first magnetic field generating device (7) comprises an induction coil (20) provided below the molten pool (15). The first magnetic field generating device (7) is detachably provided below a surface, used for containing the material (12) to be processed, of the forming base (6); second magnetic field generating devices (16) are provided above the forming base (6); the induction coil (20) is provided below the molten pool (15), and the molten pool (15) is located in an area, where clustered magnetic induction lines are emitted, of the induction coil (20), so that the clustered magnetic induction lines penetrate through the molten pool (15). Therefore, the magnetic field intensity of the molten pool (15) is concentrated, the control effect of the magnetic field on additive forming is improved, and the control efficiency of the magnetic field unit on the molten pool (15) is improved.
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公开(公告)号：US20220212266A1
公开(公告)日：2022-07-07
申请号：US17614151
申请日：2020-05-19
申请人： AddUp
摘要： A powder bed fusion additive manufacturing machine (10) comprises a working area (20) able to receive a superposition of different layers of powder, a device (30) for depositing a layer of powder onto the working area and a consolidation source (40) used to selectively consolidate each layer of powder deposited onto the working area, the device for depositing a layer of powder comprising a powder reservoir (32) able to be positioned above the working area, and a powder distribution opening being provided in the bottom part of the reservoir, the device for depositing a layer of powder comprising a vibrating device (68) able to subject the reservoir to vibrations, and the powder distribution opening of the reservoir being equipped with a sieve. The reservoir is mounted on a weighing sensor.
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9.发明申请公开(公告)号：US20230133443A1
公开(公告)日：2023-05-04
申请号：US17912249
申请日：2021-03-19
发明人： Gerald C. Anzalone
IPC分类号： B23K9/04 , B22F10/38 , B22F10/43 , B22F5/10 , B22F10/68 , B22F10/73 , B22F12/60 , B22F10/36 , B22F10/85
摘要： The invention is a system for and method of manufacturing metallic parts through weld arc additive manufacturing with conductive granular media as support, to manufacture parts which have overhangs, hollow sections, a plurality of openings, a geometry having a discontinuous structure when formed by additive manufacturing steps that is joined, or a combination of geometries known in the art of manufacturing that could heretofore only be produced by cutting and assembling a variety of different parts. The system and method of the invention contemplate use of conductive granular media support material which may become at least partially incorporated in, or part of, a final part produced using the system or method of the invention.
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公开(公告)号：US11583930B2
公开(公告)日：2023-02-21
申请号：US16608735
申请日：2018-04-26
发明人： Li Lin , Wei Chao , Zhang Xiaoji
IPC分类号： B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C64/153 , B29C64/165 , B29C64/194 , B29C64/336 , B22F10/68 , B23K26/342 , B29C64/245 , B29C64/35 , B29C64/218 , B22F12/53 , B22F12/60 , B22F10/28
摘要： An apparatus (100) for additive manufacturing of a part of an article from a first material comprising particles having a first composition is provided. The apparatus (100) comprises a layer providing means (110) for providing a first support layer from a second material comprising particles having a second composition, wherein the first composition and the second composition are different. The apparatus (100) comprises a concavity defining means (120) for defining a first concavity in an exposed surface of the first support layer. The apparatus (100) comprises a depositing means (130) for depositing a part of the first material in the first concavity defined in the first support layer. The apparatus (100) comprises a levelling means (140) for selectively levelling the deposited first material in the first concavity. The apparatus (100) comprises a first fusing means (150) for fusing some of the particles of the levelled first material in the first concavity by at least partially melting said particles, thereby forming a first part of the layer of the article. In this way, the second material may be thus used to provide a support structure during additive manufacturing of the part of the article.
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