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公开(公告)号：US20210331245A1
公开(公告)日：2021-10-28
申请号：US17233752
申请日：2021-04-19
发明人： Ryuichi NARITA , Shuji TANIGAWA , Yasuyuki FUJIYA , Claus THOMY , Dieter TYRALLA , Thomas SEEFELD
IPC分类号： B22F10/368 , B22F10/85 , B22F12/49 , B22F12/90 , B22F10/28 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A method of monitoring an additive manufacturing process according to at least one embodiment of the present disclosure includes the steps of acquiring information on a temperature of a region upstream of a melt pool in a scanning direction of an energy beam, the melt pool being formed by irradiating a raw material with the energy beam, acquiring a parameter indicating a cooling rate of the region based on the information on the temperature, and determining a formation status based on the parameter.
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公开(公告)号：US20210276132A1
公开(公告)日：2021-09-09
申请号：US17158264
申请日：2021-01-26
发明人： Yoshinao KOMATSU , Kazuhiro YOSHIDA , Saneyuki GOYA , Akiko INOUE , Yasuyuki FUJIYA , Ryuichi NARITA
IPC分类号： B23K26/38 , B23K26/142 , B23K26/16 , B23K26/70
摘要： A laser processing device includes a laser irradiation unit that performs processing on a workpiece by using a laser while scanning a workpiece surface to form a kerf, jet nozzles that respectively form jet flows flowing toward a bottom surface of the kerf on front and rear sides in a scanning direction of the laser, and an intake part that sucks, above injection ports of the jet nozzles, a gas in a region surrounded by the jet flows from the front and rear sides. In a state in which a certain region of the kerf is isolated by the jet flows, the gas is sucked from this region by the intake part. As a result, a suction force by the intake part can reach the bottom surface of the kerf.
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公开(公告)号：US20210178488A1
公开(公告)日：2021-06-17
申请号：US17112030
申请日：2020-12-04
摘要： A gas supply device for a manufacturing device includes an inert gas supply source that supplies inert gas, a supply line connected to the inert gas supply source, a nitrogen removal portion that is provided on the supply line and that removes at least a portion of nitrogen in the inert gas, and an oxygen removal portion that is provided on the supply line and that removes at least a portion of oxygen in the inert gas.
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公开(公告)号：US20170036302A1
公开(公告)日：2017-02-09
申请号：US15303851
申请日：2015-04-10
发明人： Takehisa OKUDA , Tadashi ITOYAMA , Yasuyuki FUJIYA
CPC分类号： B23K26/282 , B23K9/0256 , B23K9/167 , B23K26/032 , B23K26/0884 , B23K26/123 , B23K26/14 , B23K26/1464 , B23K26/211 , B23K26/242 , B23K26/60 , B23K33/006 , B23K2101/001 , B23K2101/08 , B23K2103/04
摘要： A nozzle as a welded structure includes a nozzle body, and a buckling prevention fin joined to the nozzle body by laser welding, in which an end of the buckling prevention fin before laser welding is disposed to face the nozzle body, an installed state of the nozzle body and the buckling prevention fin includes an installed state in which a gap is formed between the nozzle body and the buckling prevention fin, and the buckling prevention fin has a beveled portion which is beveled at the end facing the nozzle body.
摘要翻译： 作为焊接结构的喷嘴包括喷嘴主体和通过激光焊接接合到喷嘴体的防翘曲片，其中激光焊接前的防翘曲片的端部设置成面对喷嘴体，安装状态为 喷嘴主体和防翘曲翅片包括在喷嘴体和防翘曲翅片之间形成间隙的安装状态，并且防止翘曲翼具有在面向喷嘴体的端部处被倒角的倾斜部分。
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公开(公告)号：US20220168848A1
公开(公告)日：2022-06-02
申请号：US17437941
申请日：2019-06-28
发明人： Kazuhiro YOSHIDA , Yoshinao KOMATSU , Saneyuki GOYA , Akiko INOUE , Yasuyuki FUJIYA , Ryuichi NARITA , Masahiko SHIMIZU , Ryota OZAKI , Yuki KANI
IPC分类号： B23K26/364 , B23K26/14 , B23K26/142
摘要： A laser machining device includes: a laser irradiation unit that forms a machining groove that has one end opening to an end section of a workpiece and the other end thereof closed, as a result of scanning a workpiece surface from an end section of the workpiece and laser machining the workpiece; and a nozzle unit that sprays a gas across an irradiation zone of the workpiece surface created by the laser irradiation unit. The nozzle unit is configured so as to increase the flowrate of the gas supplied to the irradiation zone, from one end to the other end of the machining groove.
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公开(公告)号：US20200269479A1
公开(公告)日：2020-08-27
申请号：US16668113
申请日：2019-10-30
摘要： A bonding member according to an embodiment includes: a metal member including a first base portion made of metal and a first engagement portion made of metal and provided integrally with the first base portion; and a resin member including a second base portion made of resin and a second engagement portion made of resin and provided integrally with the second base portion so as to engage with the first engagement portion. The first engagement portion includes a three-dimensional structure formed by a frame to form a plurality of cavities communicating with each other inside the frame, and the second engagement portion includes a resin filled in the plurality of cavities of the three-dimensional structure. A ratio of the frame per unit volume including the cavity and the frame in the first engagement portion gradually increases toward the first base portion while fluctuating.
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公开(公告)号：US20200262003A1
公开(公告)日：2020-08-20
申请号：US16720167
申请日：2019-12-19
发明人： Naoki SUDA , Shuho TSUBOTA , Yasuyuki FUJIYA , Yasutaka BANNO , Satoru ZENITANI
IPC分类号： B23K26/00 , B23K26/082 , B23K26/067 , B23K26/073 , B23K9/04 , B23K26/12 , B23K26/342
摘要： A weldment manufacturing method includes drilling that forms a hole on a workpiece, feeding a filler material to the hole and putting the filler material on a bottom of the hole, and melting the filler material by emitting a laser beam to the hole while scanning with the laser beam, so as to fill the hole with the melted filler material. By repeating the feeding and the melting, a weld repairing portion filling the hole is formed.
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公开(公告)号：US20220203480A1
公开(公告)日：2022-06-30
申请号：US17607131
申请日：2019-07-31
发明人： Kazuhiro YOSHIDA , Yoshinao KOMATSU , Saneyuki GOYA , Akiko INOUE , Yasuyuki FUJIYA , Ryuichi NARITA , Masahiko SHIMIZU
IPC分类号： B23K26/364 , B23K26/142 , B23K26/14
摘要： This laser processing device is provided with a laser radiating unit which forms a processed groove extending in a scanning direction on a workpiece, by subjecting the workpiece to laser processing while scanning the surface of the workpiece, and a nozzle portion which has a plurality of ejection holes arranged side by side in the scanning direction, and which ejects a gas toward the processed groove from each of the ejection holes. With this laser processing device, since a plume is eliminated by ejecting gas into the processed groove by means of the nozzle portion, the formation of a heat affected layer by the plume can be suppressed to an even greater extent.
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公开(公告)号：US20210379665A1
公开(公告)日：2021-12-09
申请号：US17406707
申请日：2021-08-19
IPC分类号： B22F10/85 , B33Y10/00 , B33Y30/00 , B33Y50/00 , B22F10/28 , B22F12/90 , B23K26/70 , G01J1/42
摘要： The present invention accurately detects the state of a radiated light beam. According to the present invention, a calibration unit for a metal 3D printer that radiates a light beam at a powder to mold a built part has: a base part that is attached to a stage that is irradiated with the light beam from the metal 3D printer; and a plurality of attachment parts that are provided to the base part at different locations and have detection devices that detect the light beam attached thereto. The attachment parts are provided at different angles such that the detection directions of the detection devices attached thereto are different.
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公开(公告)号：US20210170492A1
公开(公告)日：2021-06-10
申请号：US17178622
申请日：2021-02-18
摘要： An additive manufacturing method according to at least one embodiment includes a step of forming a first layer by melting and solidifying powder of a first metal, and a step of forming a second layer on the first layer by melting and solidifying powder of a second metal of a different type from the first metal. The first metal and the second metal are, if the first metal is added to the second metal, a combination capable of forming a solid solution, or if the first metal is added to the second metal, a combination raising a melting point as an additive amount of the first metal increases.
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