| 摘要 |
PROBLEM TO BE SOLVED: To provide a die device for performing a prescribed punching work on a thin plate material, by which the dimension of a punched hole formed on the thin plate material by the punching work is easily corrected. SOLUTION: A pin 37 for performing the punching work while drawing a thin plate material 1 is fixed to an upper die punch 33. The front end shape of the pin 37 is made spherical so as to easily draw the thin plate material 1. The dimension of a punched hole 47, formed on the thin plate material 1 by the punching work, is corrected by adjusting the projection amount of the pin 37, by which the pin is projected from the punching part of the lower end of the punch 33. COPYRIGHT: (C)2007,JPO&INPIT
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