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    SPATTER DETECTION METHOD
    11.
    发明申请
    SPATTER DETECTION METHOD 有权

    公开(公告)号：US20240399511A1

    公开(公告)日：2024-12-05

    申请号：US18664994

    申请日：2024-05-15

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Nao KAWABE ,  Tomohiko SEKIGUCHI ,  Toru HIOKI ,  Tomoko OGASAHARA ,  Shota EJIMA ,  Yosuke TAMADA ,  Takaya OBARA

    IPC: B23K31/12 ,  B23K11/11 ,  B23K11/25

    Abstract: A spatter detection method for accurately determining whether or not spatter has been generated when resistance spot welding is performed is provided. A spatter detection method including: a welding step for welding a plurality of welding materials by sandwiching parts to be welded of the welding materials between a pair of electrodes and then pressurizing the parts to be welded while simultaneously energizing the pair of electrodes; a calculation step for calculating an amount of expansion of the parts to be welded based on a pressurizing force and a stroke between the pair of electrodes; and a determination step for determining that the spatter has been generated when a magnitude of an inclination of an expansion amount waveform falls below a determination threshold, in which in the determination step, determination thresholds different from each other are applied to respective sections obtained by dividing a target period of the determination.

    WELDING METHOD
    14.
    发明申请
    WELDING METHOD 审中-公开
    焊接方法

    公开(公告)号：US20160288262A1

    公开(公告)日：2016-10-06

    申请号：US15060679

    申请日：2016-03-04

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kohei HISADA ,  Toru HIOKI ,  Kazuyuki OGUSU ,  Shuichi MATSUMOTO

    IPC: B23K26/22 ,  B23K15/00

    CPC classification number: B23K26/22 ,  B23K15/008

    Abstract: A welding method according to the invention is a welding method in which welding is performed by emitting a high-energy beam onto a welding object that includes a plurality of overlapped metal sheets. This welding method includes forming a tack weld nugget at a welding point on the welding object, and forming a plurality of final weld nuggets along a virtual closed curve that encircles the tack weld nugget, while leaving the tack weld nugget, at the welding point.

    Abstract translation: 根据本发明的焊接方法是一种焊接方法，其中通过将高能束发射到包括多个重叠金属片的焊接对象上进行焊接。 这种焊接方法包括在焊接对象的焊接点处形成定位焊点，并且在焊接点处留下焊点熔核的同时，沿着围绕焊点熔核的虚拟闭合曲线形成多个最终焊接块。

    LASER WELDING METHOD
    15.
    发明申请
    LASER WELDING METHOD 审中-公开
    激光焊接方法

    公开(公告)号：US20160236297A1

    公开(公告)日：2016-08-18

    申请号：US15000781

    申请日：2016-01-19

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kohei HISADA ,  Toru HIOKI ,  Kazuyuki OGUSU

    IPC: B23K26/21 ,  B23K26/082

    CPC classification number: B23K26/082 ,  B23K26/26 ,  B23K26/60

    Abstract: A laser welding method for welding a plurality of objects to be welded by applying a laser beam scanned by a scanning unit to the plurality of objects to be welded while moving the scanning unit in a welding direction along a welding path, the laser welding method including the steps of: performing a step of preliminary-fixation-welding on a predetermined place in the welding direction of the objects to be welded, and a step of main-welding on a place corresponding to the preliminarily-fixed place of the object to be welded within a scanning range of the scanning unit while moving the scanning unit. Further, when the place corresponding to the preliminarily-fixed place of the object to be welded is main-welded, the place is main-welded in a state where both sides of the place to be main-welded are restrained.

    Abstract translation: 一种激光焊接方法，其通过沿着焊接路径沿着焊接方向移动所述扫描单元，通过将由扫描单元扫描的激光束施加到所述多个待焊接物体来焊接多个待焊接物体，所述激光焊接方法包括 以下步骤：在待焊接物体的焊接方向上的预定位置执行预先固定焊接步骤，以及在与所述物体的预先固定的位置对应的地方进行主焊接的步骤 在移动扫描单元的同时在扫描单元的扫描范围内焊接。 此外，当对应于待焊接对象的预先固定位置的地方进行主焊时，在要被焊接的地方的两侧被限制的状态下，将该地点进行主焊接。

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