公开(公告)号：US20230121254A1

公开(公告)日：2023-04-20

申请号：US18084813

申请日：2022-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jingbo WANG ,  Tsutomu SUGIYAMA ,  Shunsuke KAWAI ,  Kenzo SHIBATA ,  Masashi ISHIGURO

IPC: B23K31/12 ,  B23K26/082 ,  B23K26/03 ,  B23K26/06

Abstract: A laser welding device includes: a laser oscillator to which an incidence end of a fiber is connectable; a welding head connectable to an emission end of the fiber and configured to perform laser welding while condensing laser light emitted from the laser oscillator via the emission end and irradiating a workpiece with the laser light; a detector configured to detect presence or absence of a defect in the laser welding; and a controller including a processor and a memory storing instructions that, when executed by the processor, cause the laser welding device to perform operations. The operations include: performing, in response to receiving, from the detector, an output signal indicating a defect at a welding point on the workpiece during the laser welding of the workpiece, control such that supplementary laser welding is performed at a predetermined position in a vicinity of the welding point.