公开(公告)号：US20240024986A1

公开(公告)日：2024-01-25

申请号：US17814637

申请日：2022-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Baixuan Yang ,  Wei Zeng ,  Hui-ping Wang ,  Stephen Kyle Greutman ,  Eric Barnhart ,  Andrew Hromadka

IPC: B23K26/70 ,  B23K26/244 ,  B23K26/22 ,  B23K37/04 ,  B23K26/142

CPC classification number: B23K26/706 ,  B23K26/244 ,  B23K26/22 ,  B23K37/04 ,  B23K26/142

Abstract: A laser welding system for joining a first workpiece to a second workpiece includes a laser welder configured to emit a laser beam at a power to form a weld to join the first workpiece and the second workpiece at a weld location. The laser welding system includes a plasma protection fixture coupled to a surface of at least the first workpiece. The plasma protection fixture defines an opening configured to receive the laser beam. The opening has a perimeter that surrounds and is spaced apart from the weld. The plasma protection fixture has a height above the surface of at least the first workpiece about the perimeter of the opening that is defined based on the power of the laser beam.