Rigid part assembly e.g. frame and liner's steel tube assembly, for door of motor vehicle, has cut deformable attachments provided in sheet, where each attachment is supported against and welded with rigid part by welding seam

摘要

The assembly has a rigid part (4) i.e. stiffening reinforcement, welded by laser with a rigid sheet part (3) i.e. door frame, by welding seams (5) forming a discontinuous line between the two parts. The rigid sheet part has a series of cut deformable attachments (6) provided in the sheet, where each attachment is supported against the rigid part and welded with the rigid part by each welding seam. The attachments are located in the plane of the sheet part and connected to a sheet of the rigid sheet part along a line that is parallel to a discontinuous line formed by the welding seams.