| 摘要 |
PROBLEM TO BE SOLVED: To provide a press forming method capable of using a press machine small in total load when works are multistage-worked by the press machine. SOLUTION: A die having a plurality of punches, whose projection distances are different from each other, is attached to the press machine for pressing a slide plate by a plurality of servo-motor driving sources, thereby performing a multistage working. The forming working is performed by using the most projective punch among the plurality of punches by lowering a movable die while being kept in a horizontal direction. COPYRIGHT: (C)2005,JPO&NCIPI
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