公开(公告)号：US20230373029A1

公开(公告)日：2023-11-23

申请号：US18317461

申请日：2023-05-15

Applicant: NHK SPRING CO., LTD.

Inventor： Yuichi TAKAYANAGI

IPC: B23K26/244 ,  B23K26/082

CPC classification number: B23K26/244 ,  B23K26/082 ,  B23K2101/18

Abstract: A laser welding joint S1 includes a first bead 10 formed along a first path R1 and a second bead 20 formed along a second path R2. The second bead 20 is formed such that a side portion 20S of the second bead 20 overlaps with a finishing end region 10A of the first bead 10. A starting point of the second path R2 is a position different to a finishing point of the first path R1.