| 摘要 |
PURPOSE:To change a difference in level to diversify a bending with the difference in level by interposing spacers of various thickness with dovetails on the secondary bending die composed of plural stepped assemblages of the first bending die and the opposite secondary die between an opposing holder. CONSTITUTION:The stepped working die for a work 3 is composed of the plural stepped assemblages of the first bending die 10 and the second bending die opposed to it between the opposed holder 1. The step difference of the bending die is altered by interposing the low carbon steel spacer 14 with the dovetail 14c of different thickness on the second bending die 11. Therefore, the stepped bending dies with various dimensions are easily obtained.
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