| 摘要 |
PROBLEM TO BE SOLVED: To provide a junction member capable of jointing by combining laser weld and caulking, without being limited to an edge part.SOLUTION: An overlap part 103 of a main frame 41 and a down frame 44 is caulked by mechanical clinch joint, and parts which are at least the vicinity of a caulking part K formed by the caulking, and other than the caulking part K, are jointed by laser weld. |
