公开(公告)号：US20200002795A1

公开(公告)日：2020-01-02

申请号：US16425207

申请日：2019-05-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke UCHIDA ,  Masashi Furukawa

IPC: C22F1/04

Abstract: There is provided a surface modification method for a light metal casting that enables, with Friction Stir Processing, to further refine a surface at a portion at which the strength is especially required. A surface modification method for a light metal casting with Friction Stir Processing in which a rotating shaft and a rotator are rotated and fed while the rotating shaft and the rotator are being pressed against a surface of a casting to modify the surface of the casting, the method includes feeding the rotating shaft and the rotator while rotating the rotating shaft and the rotator in a manner such that a side at which a rotating direction of the rotating shaft and the rotator coincides with a feeding direction is positioned at a portion at which increase in the strength is desired with modification of the light metal casting.

公开(公告)号：US20180361504A1

公开(公告)日：2018-12-20

申请号：US15982080

申请日：2018-05-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke UCHIDA ,  Hiroomi KOBAYASHI ,  Nozomi TATEYAMA

IPC: B23K26/21

Abstract: A method of welding laminated metal foils (LMF) by projecting a laser beam onto LMF sandwiched between an upper metal plate and a lower metal plate from a side of the upper metal plate and laser-welding the LMF to the upper metal plate and the lower metal plate. The method includes: forming a hole in an upper surface of the upper metal plate and forming a chamfered part so that a diameter of the hole expands toward the upper surface before the laser welding; and in the laser welding, projecting the laser beam for heat conduction welding onto the chamfered part of the upper metal plate to form a molten pool; and projecting the laser beam in a circle to agitate the molten pool and grow the molten pool in a laminating direction of the LMF so that the molten pool reaches the lower metal plate.

公开(公告)号：US20160052091A1

公开(公告)日：2016-02-25

申请号：US14781129

申请日：2014-03-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke UCHIDA ,  Masashi FURUKAWA ,  Hiroomi KOBAYASHI ,  Atsushi KAWAKITA ,  Shuhei OGURA ,  Hiroaki KISHI ,  Eiji AKAMATSU ,  Yuta IWAMOTO

IPC: B23K31/12 ,  B23K26/03 ,  G01B11/30 ,  B23K26/21

CPC classification number: B23K31/125 ,  B23K26/03 ,  B23K26/21 ,  B23K26/24 ,  G01B11/30

Abstract: A welding laser beam (L1) is radiated along welding loci (C11, C12) set in workpieces (W1, W2), or an inspection laser beam (L5) is radiated along scanning loci (C51, C52) set in a molten pool (Y1) of the workpieces that are molten by radiation of the welding laser beam, a returned light beam (L2) including reflection light from the molten pool, vapor light caused due to melting and evaporation of the workpieces, and thermal radiation light emitted from the molten pool is received, and a welding state of a welded portion of the workpieces is inspected based on an intensity of a returned light beam received in a first region inside the molten pool which is relatively close to a given point and an intensity of a returned light beam received in a second region inside the molten pool which is relatively spaced from the given point.

Abstract translation: 焊接激光束（L1）沿着设置在工件（W1，W2）中的焊接轨迹（C11，C12）辐射，或者沿着设置在熔池中的扫描位置（C51，C52）辐射检查激光束（L5） Y1）通过焊接激光束的辐射而熔融的工件，包括来自熔池的反射光的返回光束（L2），由于熔融和蒸发而产生的蒸汽光，以及从 接收熔融池，并且基于接收在熔池内的第一区域中接收的返回光束的强度来检查工件的焊接部分的焊接状态，所述第一区域相对接近给定点，并且返回的强度 光束被容纳在与给定点相对间隔的熔池内部的第二区域中。

公开(公告)号：US20170248098A1

公开(公告)日：2017-08-31

申请号：US15436555

申请日：2017-02-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yu YAMAMOTO ,  Keisuke UCHIDA

IPC: F02F1/14 ,  B23K20/12 ,  F01P3/02

CPC classification number: F02F1/14 ,  B23K20/1265 ,  B23K20/129 ,  B23K2101/006 ,  B23K2103/10 ,  F01P3/02 ,  F01P2003/021 ,  F02F2001/106 ,  F02F2200/00

Abstract: A bridge member is installed in an opening of a water jacket, and a probe of a friction stir welding tool, which rotates about an axis parallel to a cylinder axis, is pressed against a central part of an upper surface of the bridge member. The probe is kept pressed against the central part of the upper surface for a predetermined time to cause side surfaces of the bridge member to expand and come into contact with both a cylinder wall and an outer wall. The probe is moved from the central part of the upper surface to the outer wall, or the cylinder wall, while the probe is kept pressed against the upper surface, thereby friction-stir welding the outer wall, or the cylinder wall, with the bridge member to each other, and after that, the probe is removed off the top deck.

公开(公告)号：US20180361516A1

公开(公告)日：2018-12-20

申请号：US15984955

申请日：2018-05-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroomi KOBAYASHI ,  Nozomi TATEYAMA ,  Keisuke UCHIDA ,  Fuminori OHASHI ,  Yoshinori SHIBATA ,  Masaki KOIKE

IPC: B23K33/00 ,  B23K26/035 ,  B23K35/02 ,  B23K11/18 ,  B23K9/127

Abstract: Provided is a method of welding laminated metal foils that can prevent blowholes and spatter from being formed. It is a method of welding laminated metal foils sandwiched between a pair of metal plates to the pair of metal plates. The method of welding laminated metal foils sandwiched between a pair of metal plates to the pair of metal plates includes locally pressing and crimping the laminated metal foils sandwiched between the pair of metal plates at a welding point in a laminating direction, and welding the crimped pair of metal plates and laminated metal foils at the welding point.

公开(公告)号：US20170014953A1

公开(公告)日：2017-01-19

申请号：US15183423

申请日：2016-06-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke UCHIDA ,  Hideki TESHIMA ,  Akinori EDA

IPC: B23K31/12 ,  B23K26/70 ,  B23K26/03 ,  B23K26/34

CPC classification number: B23K31/125 ,  B23K26/032 ,  B23K26/34 ,  B23K26/702 ,  G06T2207/30164

Abstract: A method of determining a quality of a cladding layer according to one aspect of the present invention is a method of determining a quality of a cladding layer 16 formed by irradiating a laser beam 30 while a metallic powder 26 is being supplied, the method including: a process of capturing an image of a melt pool 31 and an area around thereof while the cladding layer 16 is being formed; a process of measuring the sizes and the number of ball-shaped metallic powder aggregates absorbed in the melt pool 31 from the image that has been captured; and a process of determining the quality of the cladding layer 16 based on the sizes and the number that have been measured.

Abstract translation: 根据本发明的一个方面的确定包层的质量的方法是确定通过在供应金属粉末26时照射激光束30而形成的包层16的质量的方法，该方法包括： 在形成包层16的同时捕获熔池31的图像及其周围的区域的处理; 从捕获的图像中测量在熔池31中吸收的球状金属粉末聚集体的尺寸和数量的过程; 以及基于已经测量的尺寸和数量来确定包层16的质量的处理。

公开(公告)号：US20160136755A1

公开(公告)日：2016-05-19

申请号：US14885145

申请日：2015-10-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroomi KOBAYASHI ,  Keisuke UCHIDA ,  Ryo WATANABE ,  Yuto TANAKA

IPC: B23K26/03 ,  B23K26/21 ,  B23K26/12

CPC classification number: B23K26/032 ,  B23K26/1437 ,  B23K26/244

Abstract: Provided is a laser welding apparatus that performs welding by irradiating a laser beam onto a welded part, the laser welding apparatus including: a shielding gas supply unit that supplies a shielding gas to the welded part; a gas feed rate controlling unit that controls a flow rate of the shielding gas; a light intensity measurement unit that measures a light intensity of plasma light emitted from the welded part; and a rate-of-change calculation unit that calculates a rate of change of the light intensity measured by the light intensity measurement unit. The gas feed rate controlling unit controls, according to the calculated rate of change of the light intensity, the flow rate of the shielding gas supplied to the welded part.

Abstract translation: 提供一种激光焊接装置，其通过将激光照射到焊接部上进行焊接，所述激光焊接装置包括：保护气体供给部，其向所述焊接部供给保护气体; 气体供给速率控制单元，其控制所述保护气体的流量; 光度测量单元，其测量从所述焊接部发射的等离子体光的光强度; 以及变化率计算单元，其计算由所述光强测量单元测量的光强度的变化率。 气体供给速度控制单元根据计算出的光强变化率来控制供给到焊接部的保护气体的流量。

公开(公告)号：US20160061727A1

公开(公告)日：2016-03-03

申请号：US14780584

申请日：2014-03-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroomi KOBAYASHI ,  Masashi FURUKAWA ,  Keisuke UCHIDA ,  Yoshinori SHIBATA ,  Atsushi KAWAKITA ,  Hiroaki KISHI ,  Eiji AKAMATSU ,  Yuta IWAMOTO

IPC: G01N21/55 ,  G01N33/20

CPC classification number: G01N21/55 ,  B23K26/032 ,  B23K26/082 ,  B23K26/22 ,  G01N33/206

Abstract: A welding laser beam (L1) is radiated along welding loci (C11, C12) set in workpieces (W1, W2), or an inspection laser beam (L5) is radiated along scanning loci (C51, C52) set in a molten pool (Y1) of the workpieces (W1, W2) that are molten by radiation of the welding laser beam (L1), a returned light beam (L2) including reflection light from the molten pool (Y1) of the workpieces, vapor light caused due to melting and evaporation of the workpieces, and thermal radiation light emitted from the molten pool (Y1) of the workpieces is received, and a welding state of a welded portion of the workpieces is inspected based on an intensity change of the returned light beam (L2) thus received.

Abstract translation: 焊接激光束（L1）沿着设置在工件（W1，W2）中的焊接轨迹（C11，C12）辐射，或者沿着设置在熔池中的扫描位置（C51，C52）辐射检查激光束（L5） Y1）通过焊接激光束（L1）的辐射熔融的工件（W1，W2），包括来自工件的熔池（Y1）的反射光的返回光束（L2），由于 工件的熔化和蒸发以及从工件的熔池（Y1）发射的热辐射光，并且基于返回的光束（L2）的强度变化来检查工件的焊接部分的焊接状态 ）。

公开(公告)号：US20220241843A1

公开(公告)日：2022-08-04

申请号：US17646199

申请日：2021-12-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke UCHIDA ,  Yuya SEGAWA ,  Satoshi YAMADA ,  Tomoharu HARADA ,  Naoki NISHIKAWA ,  Hidekatsu ONODERA

IPC: B21J15/36 ,  F16B5/04

Abstract: A joining device comprises a die and driving means. A first concave portion is recessed in a substantially cylindrical shape in a driving direction on the die, and a second concave portion is recessed in the driving direction in a central portion on a bottom face of the first concave portion. A portion on an external side of the second concave portion on the bottom face of the first concave portion forms a terrace portion that is shallower than the second concave portion, and a diameter of the foot portion of the self-piercing rivet corresponds to a diameter of the terrace portion. In driving the foot portion of the self-piercing rivet toward the terrace portion of the first concave portion, the foot portion of the self-piercing rivet is spread outward by the terrace portion and a part of the members to be joined runs into the second concave portion.

公开(公告)号：US20170074349A1

公开(公告)日：2017-03-16

申请号：US15261125

申请日：2016-09-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke UCHIDA ,  Yoshinori SHIBATA ,  Hiroyuki FUJII

IPC: F16F15/14 ,  F16F15/30

CPC classification number: F16F15/145 ,  F16F15/30 ,  F16H45/02 ,  F16H2045/0205 ,  F16H2045/0231 ,  F16H2045/0278

Abstract: A torsional vibration reduction device provided inside a torque converter includes rolling elements, a plate, and a cover. The plate includes rolling chambers housing the rolling elements. The cover encloses and shields the rolling elements and the plate from a working fluid surrounding the torsional vibration reduction device inside the torque converter. The cover includes first and second covers that are joined together with the plate held between the first and second covers. The first and second covers contact the plate in an axial direction of the torque converter at locations that are, with respect to an axis of the torque converter, on an inner peripheral side and on an outer peripheral side of the rolling chambers. Surfaces of the first and second covers are joined to the plate at least at part of the locations where the first and second covers contact the plate.

Abstract translation: 设置在变矩器内部的扭转减振装置包括滚动元件，板和盖。 该板包括容纳滚动元件的滚动室。 盖子围绕扭矩转换器内的扭转减振装置周围的工作流体包围并屏蔽滚动元件和板。 所述盖包括第一和第二盖，所述第一和第二盖与保持在第一和第二盖之间的板连接在一起。 第一和第二盖在变矩器的轴向方向上相对于变矩器的轴线在轧制室的内周侧和外周侧的位置处接触板。 第一和第二盖的表面至少在第一和第二盖接触板的位置的一部分处连接到板。