| 摘要 |
A method and a corresponding tool are disclosed for stamping or forming, by means of a high-speed press, parts from blanks, the parts having at least first and second perforations. The method comprises the steps of performing a first perforating operation to form a center hole in the blank and performing a subsequent perforating operation to form spokes in the blank. The spokes are radially disposed around the center hole and formed while the blank is held in position during the first perforating operation. The blank is held by the perforating tool for the subsequent perforating operation.
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