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Title:
PRESS DIE FOR DRAWING AND SHEARING
Document Type and Number:
Japanese Patent JPS58173030
Kind Code:
A
Abstract:

PURPOSE: To simplify the structure of a titled press by constituting the device of a punch, a pad, a die and a blank holder and providing a cutting edge in the die and a cutting edge projected from the plate thickness of a work opposing to the end face of the pad in the punch.

CONSTITUTION: The press die for drawing and shearing is provided with a punch 3, a pad 14 and a die 5 for drawing. The die 5 for drawing has a cutting edge 12 on the stepped part 11, and the punch 3 has a concavity on the surface, and has a cutting edge projected from the plate thickness of a work W in the concavity 19. Shearing is performed during the course of drawing in cooperation with the cutting edge 12 blank holding the work W by the end face 16 and cutting edge 20. After performing drawing work by bringing the punch 3 close to the die 5, blank holding is released.


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Inventors:
MINEGISHI MINORU
Application Number:
JP5369882A
Publication Date:
October 11, 1983
Filing Date:
April 02, 1982
Export Citation:
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Assignee:
NISSAN MOTOR
International Classes:
B21D24/16; B21D28/14; B21D35/00; (IPC1-7): B21D24/16; B21D28/14
Attorney, Agent or Firm:
Mikio Hatta



 
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