| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for continuous reverse redrawing capable of realizing continuous reverse redrawing even with 1-2 operated hydraulic press. SOLUTION: A cup-like intermediate stock is formed by performing the drawing of a flat plate W in a first stage in one direction by cooperating a cylindrical punch 16 with a drill-shaped die 14. A cup-like product is obtained by performing a reverse drawing in a second stage in an opposite direction by cooperating the cylindrical punch 16 with a solid punch 15. Drawing in the first stage is performed without using any actuator for blank holder by using the drill-shaped die in the drawing in the first stage.
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