Stamping device and stamping method

Details Stamping device and stamping method Stamping device and stamping method

2011-07-05

2011-07-05

Nguyen, Jimmy T (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

C072S379200, C072S361000

Reexamination Certificate

active

07971467

ABSTRACT:
The present application provides a technique for simultaneously bending and drawing.In a stamping device, the timing at which an upper pad moves downward and grips a work piece between the upper pad and a first supporting surface is adjusted so as not to be later than the timing at which an upper bending steel makes contact with the work piece. The height of a lower end of the upper bending steel after the timing at which the upper bending steel has made contact with the work piece, and the height of a lower surface of a drawing pad after the timing at which the work piece has been gripped between the drawing pad and a third supporting surface are adjusted such that the lower end of the upper bending steel and the lower surface of the drawing pad move downward while maintaining the same height at a boundary between the upper bending steel and the drawing pad.

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