Sheet metal forming tool and method

Details Sheet metal forming tool and method Sheet metal forming tool and method

B - Operations, Transporting

21

D

B21D 22/00 (2006.01) B21D 22/10 (2006.01) B21D 22/26 (2006.01)

Patent

CA 2073595

There is provided a punch for use in cold forming hollow metal articles in a die without wrinkling. The punch is provided with a head portion composed of resiliently deformable material, such as an elastomer, with cavities located in the head portion to permit controlled collapse of the head portion under transverse forces exerted during a forming operation.

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