公开(公告)号：US12036624B2

公开(公告)日：2024-07-16

申请号：US16558527

申请日：2019-09-03

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Tomomichi Yasuoka ,  Takashi Kayahara ,  Toshiaki Sakai ,  Ryosuke Nishii ,  Takashi Shigematsu

IPC: B23K26/06 ,  B23K26/21

CPC classification number: B23K26/0608 ,  B23K26/0648 ,  B23K26/21

Abstract: A method of welding a workpiece by using a laser is provided which includes disposing a workpiece in a region to be irradiated with laser light from a laser oscillator; and irradiating the workpiece with the laser light from the laser oscillator such that an irradiated portion of the workpiece is melted and welded while sweeping the laser light over the workpiece by relatively moving the laser light and the workpiece. The laser light is formed of a main beam and an auxiliary beam, at least part of the auxiliary beam being disposed anteriorly in a sweep direction, and the main beam has a power density equal to or greater than a power density of the auxiliary beam.