公开(公告)号：US20190291164A1

公开(公告)日：2019-09-26

申请号：US16357444

申请日：2019-03-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kohei TAKAHASHI ,  Atsushi KAWAKITA ,  Junichiro MAKINO

IPC: B21D39/03

Abstract: A joining apparatus includes: a die having a recess; and a punch disposed opposite to the recess. The punch includes an inner punch portion and an outer punch portion disposed around the inner punch portion, the inner punch portion and outer punch portion are configured to be movable relative to each other, and a depression is formable at a front end of the punch. The joining apparatus is configured such that, in a state in which the depression is formed at the front end of the punch, the punch is moved relatively so as to press and deform the multiple plate members toward the recess by the punch, and the inner punch portion is moved relatively so as to extrude a metal in the depression by the inner punch portion.

公开(公告)号：US20150336212A1

公开(公告)日：2015-11-26

申请号：US14715978

申请日：2015-05-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kohei HISADA ,  Toru HIOKI ,  Junichiro MAKINO ,  Kazuyuki OGUSU ,  Masahiro NAKATA

IPC: B23K26/22 ,  B23K26/32

CPC classification number: B23K26/22 ,  B23K26/082

Abstract: A laser welding method includes: projecting a laser beam onto irradiation regions on plural metallic workpieces such that a weld section is formed when the workpieces are joined by laser welding, the weld section being formed of plural nuggets, and each of the irradiation regions being formed with each of the nuggets. The nuggets are sequentially formed by sequentially projecting the laser beam onto the irradiation regions that respectively correspond to the nuggets. The laser beam is projected onto each of the irradiation regions such that an amount of input heat from the laser beam that is projected onto each of the irradiation regions to the workpiece is reduced as the nuggets are sequentially formed.

Abstract translation: 激光焊接方法包括：将激光束投射到多个金属工件上的照射区域上，使得当通过激光焊接接合工件时形成焊接部分，焊接部分由多个熔核形成，并且形成每个照射区域 与每个掘金。 通过将激光束顺序地投射到分别对应于掘金的照射区域上依次形成块体。 激光束投射到每个照射区域上，使得从依次形成块体的时候，将投射到每个照射区域上的激光束的投入热量减少到工件。

公开(公告)号：US20180345406A1

公开(公告)日：2018-12-06

申请号：US15989936

申请日：2018-05-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ko NAKAMURA ,  Junichiro MAKINO ,  Takehiro YAMAMOTO

IPC: B23K26/14 ,  B23K26/21

CPC classification number: B23K26/1438 ,  B23K26/147 ,  B23K26/1476 ,  B23K26/1494 ,  B23K26/21 ,  B23K26/36

Abstract: A laser welding device includes: a laser scanner body configured to emit a laser beam to a workpiece; a jet nozzle configured to jet gas so as to cause the gas to cross an optical path of the laser beam emitted from the laser scanner body; and a guide plate disposed on the downstream side in the flow direction of the gas, from the optical path of the laser beam emitted from the laser scanner body. The guide plate is configured to change the flow direction of the gas that has crossed the optical path of the laser beam into a direction away from a laser irradiation position on the workpiece toward the downstream side in the flow direction of the gas.

公开(公告)号：US20150298255A1

公开(公告)日：2015-10-22

申请号：US14691028

申请日：2015-04-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kohei HISADA ,  Shuhei OGURA ,  Junichiro MAKINO ,  Kazuyuki OGUSU ,  Masahiro NAKATA

IPC: B23K26/20 ,  B23K26/22 ,  B23K26/32

CPC classification number: B23K26/22 ,  B23K26/32 ,  B23K2101/18 ,  B23K2103/10

Abstract: A welding method for joining together a plurality of welding objects by overlapping the plurality of welding objects and performing laser welding includes forming a weld by forming a plurality of nuggets along a virtual closed curve on the welding objects, by laser welding. A ratio of a diameter of the nuggets to a pitch dimension between the nuggets that are adjacent to each other is larger than 1/2 and no more than 1.

Abstract translation: 通过使多个焊接对象重叠并进行激光焊接而将多个焊接对象接合在一起的焊接方法包括通过激光焊接沿焊接对象上的虚拟闭合曲线形成多个块来形成焊接。 矿块的直径与彼此相邻的矿块之间的间距尺寸的比例大于1/2并且不大于1。