| 摘要 |
<p>A workpiece is press-formed into a press-formed product in a single stroke using a punch and a die by grasping a first portion of the workpiece by a blank holder at a first timing in the single stroke, and grasping a second portion of the workpiece which is different form the first portion by the blank holder at a second timing in the single stroke which is different from the first timing.</p> |
