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公开(公告)号：US20240231310A9
公开(公告)日：2024-07-11
申请号：US18278376
申请日：2021-02-26
Inventor： Kenta AOYAGI , Akihiko CHIBA
IPC: G05B19/4099 , B22F10/85 , B29C64/393 , B33Y50/02 , G06T7/00 , G06T7/11
CPC classification number: G05B19/4099 , B22F10/85 , B29C64/393 , B33Y50/02 , G06T7/001 , G06T7/11 , G05B2219/49023 , G06T2207/20021 , G06T2207/30108
Abstract: An information processing apparatus for controlling additive manufacturing of a powder bed method includes an acquirer that acquires roughness data indicating a roughness of a manufacturing surface after melting, and defect determiner that divides the manufacturing surface into small regions each having a predetermined size, and compares the roughness data with a predetermined threshold for each small region, thereby determining whether a defect exists in the small region. If an unmolten region is included in the small region, the defect determiner replaces data of the manufacturing surface in the unmolten region using data of the manufacturing surface in the small region, and determines whether a defect exists in the small region including the unmolten region. Also, the manufacturing defect detection method further includes a defect repair instructor that instructs remelting of a region that is determined by the defect determiner to have a defect.
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公开(公告)号：US11752556B2
公开(公告)日：2023-09-12
申请号：US16631832
申请日：2017-07-18
Applicant: FUKUDA METAL FOIL & POWDER CO., LTD. , TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING
Inventor： Yuji Sugitani , Yoshito Nishizawa , Takeshi Maruyama , Hiroaki Okubo
CPC classification number: B22F10/28 , B22F1/00 , B33Y70/00 , B22F2301/10 , B22F2999/00 , B33Y80/00
Abstract: This invention provides a copper powder to which tin (Sn) is added such that a high-density laminated and shaped product can be obtained by a laminating and shaping method using a fiber laser as a heat source by appropriately reducing the electrical conductivity of copper, so a laminated and shaped product having a high density and a high electrical conductivity can be obtained. That is, this invention provides a copper powder for lamination shaping in which a tin element is added to pure copper. Desirably, the copper powder contains 0.5 wt % or more of the tin element. More desirably, the copper powder contains 5.0 wt % or more of the tin element. When the product has an electrical conductivity sufficient as a copper product, the copper powder desirably contains 6.0 wt % or less of the tin element. Furthermore, no element other than the tin element is desirably added to the copper powder.
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公开(公告)号：US20230143183A1
公开(公告)日：2023-05-11
申请号：US17913058
申请日：2021-03-22
Applicant: TOYO ALUMINIUM KABUSHIKI KAISHA , TOHOKU UNIVERSITY , TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING
Inventor： Yoshiki HASHIZUME , Isao MURAKAMI , Kenta ISHIGAMI , Sotaro AKIYAMA , Akihiko CHIBA , Kenta AOYAGI
CPC classification number: B22F1/12 , B33Y10/00 , B33Y80/00 , B22F10/38 , B22F2301/052 , B22F2302/05
Abstract: An object of the present invention is to provide an additive manufactured object which is free of solidification cracking due to, e.g., heat shrinkage during additive manufacturing of an aluminum alloy; which is free of anisotropy in strength, and has high strength and ductility. An aluminum alloy powder for additive manufacturing includes aluminum alloy particles in which not less than 0.01% by mass and not more than 1% by mass of a grain refiner is trapped. This grain refiner is at least one selected from the borides and carbides of group 4 elements.
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公开(公告)号：US20220219232A1
公开(公告)日：2022-07-14
申请号：US17607736
申请日：2020-06-04
Applicant: FUKUDA METAL FOIL & POWDER CO.,LTD. , TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING
Inventor： Yuji SUGITANI , Hideki KYOGOKU
Abstract: The present invention provides a laminating and shaping copper powder capable of shaping a laminated and shaped object of copper having a high electrical conductivity of, for example, 80% IACS or more. The present invention is a laminating and shaping copper powder obtained by mixing a nano-oxide of equal to or more than 0.01 wt % and equal to or less than 0.20 wt % and a pure copper powder. There is also provided a laminated and shaped object using the laminating and shaping copper powder of the present invention. There are also provided a manufacturing method of the laminated and shaped object using the laminating and shaping copper powder of the present invention and a laminating and shaping apparatus using the laminating and shaping copper powder.
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公开(公告)号：US10780634B2
公开(公告)日：2020-09-22
申请号：US16132683
申请日：2018-09-17
Applicant: Technology Research Association for Future Additive Manufacturing , Kabushiki Kaisha Toshiba , Toshiba Kikai Kabushiki Kaisha
Inventor： Hiroshi Ohno , Satoshi Tsuno , Mitsuo Sasaki , Tomohiko Yamada , Yasutomo Shiomi , Shimpei Fujimaki
IPC: B29C64/209 , B33Y10/00 , B33Y30/00 , B29C64/153 , B29C64/371 , B22F3/105 , B22F3/24 , B29C64/20 , B29C64/268 , B29C64/165 , B29C64/205 , B29C64/264
Abstract: A nozzle according to one embodiment includes a nozzle unit and a guide surface. A first passage, a second passage, and the guide surface are provided to the nozzle unit. The first passage has a first open end. The second passage has a second open end, and a section that is positioned upstream of the second open end and that extends in a second direction. The guide surface has an edge in a first direction. The guide surface is exposed on the outer side at the edge, is along a third direction at the edge, the third direction being a direction becoming more distanced from an axis than the second direction does, as the third direction is extended further toward the first direction. A flow of fluid ejected from the second open end follows the guide surface, and becomes separated from the nozzle unit at the edge.
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Patent Agency Ranking
公开(公告)号：US10537966B2
公开(公告)日：2020-01-21
申请号：US14888236
申请日：2015-03-04
Inventor： Yuji Sasaki , Hiroshi Ohno , Mitsuo Sasaki , Takashi Obara , Kazuyuki Masukawa
IPC: B23K26/14 , B23K26/144 , B23K26/70 , B23K15/00 , B23K26/34
Abstract: A machining apparatus that need not exchange a processing nozzle when changing a shaping condition, and increases the use efficiency of a material. The processing nozzle that performs processing by ejecting a processing material towards a molten pool formed on a process surface by an energy line includes a cylindrical inner housing that incorporates a path through which the energy line passes, and ejects the energy line from one end. The processing nozzle also includes a cylindrical outer housing that incorporates the inner housing, and has an inner surface tapered in the ejection direction of the energy line ejected from the inner housing. The processing nozzle also includes a slide mechanism that changes, along the energy line, the relative position of the outer housing with respect to the inner housing.
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公开(公告)号：US10399182B2
公开(公告)日：2019-09-03
申请号：US15123889
申请日：2016-03-15
Inventor： Hiroshi Ohno , Yuji Sasaki , Satoshi Tsuno , Naotada Okada , Mitsuo Sasaki
IPC: B23K26/342 , B23K26/082 , B22F3/105 , B23K26/067 , B33Y30/00 , B29C67/00 , B29C64/153 , B23K26/06 , B23K26/14 , B23K26/08 , B22F3/16
Abstract: The mobility of an optical processing apparatus is improved. There is provided an optical processing apparatus for scanning a processing region having an at least one-dimensional spread by moving a nozzle head while irradiating the processing region with an optical processing light beam via the nozzle head, including a light source that emits, to air, the optical processing light beam toward the nozzle head, a nozzle head that includes a hollow nozzle in a vertical direction and a light beam direction changing optical system which receives the light beam emitted from the light source and propagated in the air, and changes a propagation direction of the received light beam to a direction of a currently processed processing point in the processing region, and a main scanning direction moving mechanism that moves the nozzle head by causing the nozzle head to scan in a main scanning direction of the processing region.
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公开(公告)号：US10239305B2
公开(公告)日：2019-03-26
申请号：US15118799
申请日：2015-12-25
Inventor： Yasushi Fukase
IPC: G06F19/00 , B33Y10/00 , B22F3/105 , B33Y30/00 , B33Y50/02 , B29C64/209 , B29C64/268 , B29K105/00 , B22F3/00
Abstract: A dissimilar material joined three-dimensional laminated and shaped object is shaped using a three-dimensional laminating and shaping apparatus. The three-dimensional laminating and shaping apparatus includes a material supplier that supplies materials of a three-dimensional laminated and shaped object to a shaping surface, an irradiator that irradiates the materials with a light beam, and a controller that controls the material supplier. The three-dimensional laminated and shaped object is a joined member obtained by joining dissimilar materials. The controller controls the material supplier to form a graded composition of the materials in a boundary region between the dissimilar materials of the three-dimensional laminated and shaped object.
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公开(公告)号：US10166628B2
公开(公告)日：2019-01-01
申请号：US14763144
申请日：2014-12-26
Inventor： Kazuya Goto
IPC: B23K15/02 , B33Y30/00 , B33Y50/02 , B22F3/105 , B23K15/00 , H01J37/302 , H01J37/305
Abstract: Even a region where powder is melted is scanned by an electron beam at the highest speed. A three-dimensional shaping apparatus includes an electron gun that generates an electron beam, at least one first deflector that deflects the electron beam one-dimensionally or two-dimensionally, at least one lens that is provided between the electron gun and the first deflector and focuses the electron beam, and a second deflector that is provided between the electron gun and the first deflector and deflects the electron beam one-dimensionally or two-dimensionally.
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公开(公告)号：US10065201B2
公开(公告)日：2018-09-04
申请号：US15120001
申请日：2015-11-11
Inventor： Hiroshi Ohno , Satoshi Tsuno , Yuji Sasaki
Abstract: A branch location is arranged close to a nozzle, and the channel lengths are the same. A processing nozzle that includes a beam path for passing light from a light source and ejects a fluid containing a processing material from an ejection port includes a supply pipe that is arranged outside the beam path through which the light passes, and supplies the fluid, and a first branch pipe and a second branch pipe that supply the fluid from the supply pipe to the ejection port, and have the same total length. The first branch pipe includes a first bent portion having a first shape on an upstream side of the fluid, and a second bent portion having a second shape on a downstream side of the fluid, and the second branch pipe includes a third bent portion having the first shape on the upstream side of the fluid, and a fourth bent portion having the second shape on the downstream side of the fluid.
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