公开(公告)号：US20170001261A1

公开(公告)日：2017-01-05

申请号：US15107347

申请日：2014-12-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junji FUJIWARA ,  Yasushi MUKAI ,  Atsuhiro KAWAMOTO ,  Tatsuyuki NAKAGAWA ,  Noriyuki MATSUOKA

IPC: B23K26/322 ,  B23K26/00 ,  B25J11/00 ,  B23K26/244

CPC classification number: B23K26/322 ,  B23K26/0006 ,  B23K26/082 ,  B23K26/22 ,  B23K26/244 ,  B23K2101/006 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B25J11/005 ,  G05B2219/45135

Abstract: A laser welding method of the present disclosure includes a first step, a second step, and a third step. In the first step, a first workpiece and a second workpiece are stacked on each other. Each of the first workpiece and the second workpiece has a surface coated with a first material and is made of a second material, which is different from the first material. In the second step, a first region in which the first workpiece and the second workpiece are stacked on each other is irradiated with a laser beam so that the laser beam penetrates both the first workpiece and the second workpiece. In the third step, a second region including the first region is irradiated with a laser beam in a spiral fashion.

Abstract translation: 本公开的激光焊接方法包括第一步骤，第二步骤和第三步骤。 在第一步骤中，第一工件和第二工件彼此堆叠。 第一工件和第二工件中的每一个具有涂覆有第一材料的表面，并且由与第一材料不同的第二材料制成。 在第二步骤中，用激光束照射其中第一工件和第二工件彼此堆叠的第一区域，使得激光束穿过第一工件和第二工件。 在第三步骤中，以螺旋方式用激光束照射包括第一区域的第二区域。