| 摘要 |
PROBLEM TO BE SOLVED: To reduce the man-hour for correcting a die or the like by corresponding the shape and the position of a screw through hole formed in an inner panel and a reinforcing member even when labor is saved at a manufacturing site of a vehicle door, and errors in forming the inner panel and the reinforcing member are generated, or when a very small positional deviation occurs when these members are joined with each other. SOLUTION: A worked portion of an inner panel and a worked portion of a reinforcing member which are formed by pressing a steel sheet overlap each other in the thickness direction, and the inner panel and the reinforcing member are integrally joined with each other by spot welding equipment 21, 22 to obtain an intermediate product S. The intermediate product S is detached from the spot welding equipment 22 by a material handling robot 24, conveyed to a pressing device 23, and set to the pressing device 23. The worked portion of the inner panel and the worked portion of the reinforcing member are simultaneously punched by the pressing device 23 to form a screw through hole. COPYRIGHT: (C)2006,JPO&NCIPI
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