Cold drawing die for drawing polygonal shapes

Details Cold drawing die for drawing polygonal shapes Cold drawing die for drawing polygonal shapes

1979-03-14

1980-07-08

Mehr, Milton S.

Metal deforming

Tool and/or tool holder

Tool comprising closed periphery deforming passageway

B21C 304

Patent

active

042111048

ABSTRACT:
A cold drawing die for drawing round bar stock into shapes such as polygons. The die acts continuously on the full circumference of the round bar stock to uniformly deform the stock and yield polygons to exacting specifications using a starting material only slightly larger than the maximum diameter of the finished shape. A pure polygon and a hybrid polygon shape are disclosed.

REFERENCES:
patent: 3973428 (1976-08-01), Lugosi

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