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公开(公告)号：US11951594B2
公开(公告)日：2024-04-09
申请号：US16110327
申请日：2018-08-23
发明人： Kosei Kawahara
CPC分类号： B24D15/04 , B24B5/06 , B24B5/40 , B24B19/14 , B24B29/08 , B24B57/02 , B24D3/002 , B24D3/004 , B24D18/009
摘要： To uniformly bring an abrasive into contact with a workpiece and to achieve desired surface roughness. A polishing tool sliding on a narrow part of the workpiece includes an abrasive retaining layer configured to allow an abrasive to be retained on a surface, and an elastic layer that is stacked on the abrasive retaining layer and is configured to press the abrasive retained in the abrasive retaining layer against the workpiece. The elastic layer is preferably elastically deformable over a sliding stroke of the polishing tool, and a driving unit that causes the polishing tool to slide on the workpiece is preferably connected to the polishing tool.
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公开(公告)号：US11364544B2
公开(公告)日：2022-06-21
申请号：US16481687
申请日：2017-02-24
发明人： Kosei Kawahara
摘要： An additive manufacturing method includes forming a shaped body by repeating: a material feeding step of forming a powder layer by feeding a shaping material that includes a metal powder onto a base that is provided outside a spindle in a radial direction thereof while rotating the spindle provided to be rotatable about a center axis; and a beam irradiating step of solidifying the shaping material by irradiating a prescribed area of the powder layer with a beam.
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公开(公告)号：US10994355B2
公开(公告)日：2021-05-04
申请号：US16139157
申请日：2018-09-24
发明人： Yasunori Sakai , Kosei Kawahara
摘要： A metal laminating and molding method molds a 3-dimensional molded object formed by sequentially laminating a plurality of metal layers. The metal laminating and molding method is accomplished by repeatedly performing a unit process including a metal layer laminating process of laminating the metal layer constituted by welding beads formed through arc welding and a removal process of removing impurities from a surface of the metal layer laminated in the metal layer laminating process. When the unit process is repeated, the metal layer laminating process is performed again such that a new metal layer is laminated on the surface of the metal layer from which impurities have been removed in the removal process.
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公开(公告)号：US11333162B2
公开(公告)日：2022-05-17
申请号：US16478390
申请日：2017-02-24
发明人： Akihiko Morikawa , Kosei Kawahara , Toyoaki Yasui
摘要： An impeller manufacturing method includes: integrally forming an impeller by an additive manufacturing method using a metal powder, the impeller including a disk which has a disk shape about an axis, a plurality of blades which are formed on a surface facing a first side in an axial direction of the disk with gaps therebetween in a circumferential direction about the axis, and a cover which covers the plurality of blades from the first side in the axial direction; processing the integrally formed impeller by a hot isostatic pressing; and causing a polishing fluid containing abrasive grains to flow through a flow path formed between the disk, the cover, and the blades in the impeller after the processing with the hot isostatic pressing and while pressurizing the polishing fluid to perform fluid polishing.
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公开(公告)号：US10821520B2
公开(公告)日：2020-11-03
申请号：US16481256
申请日：2017-02-24
发明人： Kosei Kawahara , Akihiko Morikawa
摘要： A production method for an impeller includes: an impeller molding body forming step of forming an impeller molding body in which a reinforcement portion which reinforces at least one of end portions of the impeller in which an inlet and an outlet of a flow path are formed and the impeller are integrated with each other, by an additive manufacturing method using a metal powder; and a removal step of removing the reinforcement portion from the impeller molding body.
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公开(公告)号：US20190388972A1
公开(公告)日：2019-12-26
申请号：US16481256
申请日：2017-02-24
发明人： Kosei Kawahara , Akihiko Morikawa
摘要： A production method for an impeller includes: an impeller molding body forming step of forming an impeller molding body in which a reinforcement portion which reinforces at least one of end portions of the impeller in which an inlet and an outlet of a flow path are formed and the impeller are integrated with each other, by an additive manufacturing method using a metal powder; and a removal step of removing the reinforcement portion from the impeller molding body.
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公开(公告)号：US20180030561A1
公开(公告)日：2018-02-01
申请号：US15551411
申请日：2015-10-16
CPC分类号： C21D9/0068 , C21D1/00 , C21D1/18 , C21D6/002 , C21D6/004 , C21D9/00 , C21D2211/008 , F04D1/063 , F04D7/02 , F04D17/10 , F04D29/026 , F04D29/4206 , F04D29/426 , F05D2230/40
摘要： A method of manufacturing a hollow element which has an internal space and of which the internal space is cryogenically used, the method comprising a base material forming step of forming a base material which has a space to serve as the internal space; a filling step of filling the internal space of the formed base material with fluid having a temperature equal to or lower than a temperature at which the base material is subjected to solid-phase transformation and causing the base material to be subjected to the solid-phase transformation; and a finishing step of finishing the base material after the base material is subjected to phase transformation.
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8.发明申请公开(公告)号：US20190217445A1
公开(公告)日：2019-07-18
申请号：US16110327
申请日：2018-08-23
发明人： Kosei Kawahara
CPC分类号： B24D15/04 , B24B19/14 , B24B57/02 , B24D18/009
摘要： To uniformly bring an abrasive into contact with a workpiece and to achieve desired surface roughness. A polishing tool sliding on a narrow part of the workpiece includes an abrasive retaining layer configured to allow an abrasive to be retained on a surface, and an elastic layer that is stacked on the abrasive retaining layer and is configured to press the abrasive retained in the abrasive retaining layer against the workpiece. The elastic layer is preferably elastically deformable over a sliding stroke of the polishing tool, and a driving unit that causes the polishing tool to slide on the workpiece is preferably connected to the polishing tool.
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公开(公告)号：US20190134732A1
公开(公告)日：2019-05-09
申请号：US16139157
申请日：2018-09-24
发明人： Yasunori Sakai , Kosei Kawahara
摘要： A metal laminating and molding method molds a 3-dimensional molded object formed by sequentially laminating a plurality of metal layers. The metal laminating and molding method is accomplished by repeatedly performing a unit process including a metal layer laminating process of laminating the metal layer constituted by welding beads formed through arc welding and a removal process of removing impurities from a surface of the metal layer laminated in the metal layer laminating process. When the unit process is repeated, the metal layer laminating process is performed again such that a new metal layer is laminated on the surface of the metal layer from which impurities have been removed in the removal process.
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10.发明授权公开(公告)号：US09745863B2
公开(公告)日：2017-08-29
申请号：US14417719
申请日：2013-11-26
发明人： Yusuke Ishibashi , Yuya Konno , Yujiro Watanabe , Toyoaki Yasui , Kazunari Tanaka , Kosei Kawahara , Yohei Fuchigami , Toshio Nishina
IPC分类号： F01D25/00 , F01D25/24 , F04D29/02 , F04D29/42 , C23C18/16 , C23C18/18 , F04D17/12 , C23C18/44 , C23C18/32
CPC分类号： F01D25/24 , C23C18/1605 , C23C18/1616 , C23C18/1619 , C23C18/1633 , C23C18/1675 , C23C18/1678 , C23C18/1692 , C23C18/18 , C23C18/1817 , C23C18/32 , C23C18/44 , F01D25/005 , F04D17/122 , F04D29/023 , F04D29/4206 , F05D2230/90 , Y10T29/49323
摘要： Provided is a method of manufacturing a rotary machine, which includes: a casing forming process of forming a casing of the rotary machine that has multiple opening parts and suctions and discharges a fluid; a surface activating process of supplying a pretreatment liquid into the casing, then discharging the pretreatment liquid from the casing through the opening parts, and activating an inner surface of the casing after the casing forming process; a plating process of performing supply and discharge of a plating liquid into and from the easing through the opening parts to circulate the plating liquid and plating the inner surface of the casing after the surface activating process; and an assembling process of providing a rotating body that is rotatable relative to the casing so as to he covered from an outer circumference side by the casing plated in the plating process.
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