Compression working method and compression working apparatus

Details Compression working method and compression working apparatus Compression working method and compression working apparatus

1998-04-23

1999-10-19

Jones, David

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72 60, B21D 2210

Patent

active

059669764

ABSTRACT:
A compress working method and a compress working apparatus are provided for readily performing drawing in an arbitrary shape at a low cost and in a short time without using an expensive mold in the manufacturing of small batch products. A metal plate, which is a workpiece, is placed on a laminate die formed with a recess in a desired shape, and a holder is set on the metal plate. An elastic punch accommodated in the holder is urged to press the holder onto the metal plate with a portion of the urging force. In this state, a portion of the elastic punch is intruded into the recess of the laminate die together with the metal plate. The elastic punch is then unloaded after the metal plate is formed with a draw conformal to the recess of the laminate die. Since the elastic punch serves as an upper die in the press working, it is possible to readily perform the drawing in an arbitrary shape at a low cost and in a short time without using an expensive mold in the manufacturing of small batch products.

REFERENCES:
patent: 2606516 (1952-08-01), Raynes
patent: 2927549 (1960-03-01), Derbyshire
patent: 3382690 (1968-05-01), Achler et al.
patent: 3757718 (1973-09-01), Johnson
patent: 5205146 (1993-04-01), Wilkins et al.
patent: 5599565 (1997-02-01), Dittlo

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