VEHICLE BODY STRUCTURE FORMED BY LASER WELDING AND SPOT WELDING, AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a vehicle body structure formed by laser welding and spot welding for reducing the width of a flange by bringing a spot welding point close to a laser welding mark while elongating a current passage via the laser welding mark in spot welding. SOLUTION: A B pillar outer 4 and a B pillar inner 20 are spot welded so that the spot welding points 4b and 23 are arranged apart from each other in a longitudinal direction of an outer panel 32a at the outer end side of the laser welding mark 32e in a width direction of the flange 32A. In at least one of the flanges 32c and 32d, a slit 32f which penetrates in a thickness direction and has a predetermined length in a plane direction of the flange 32A is opened between the spot welding points 4b and 23 and the laser welding mark 32e in the width direction of the flange 32A. COPYRIGHT: (C)2010,JPO&INPIT