Method and apparatus for drawing open-sided channel members

Details Method and apparatus for drawing open-sided channel members Method and apparatus for drawing open-sided channel members

1991-08-19

1992-10-20

Crane, Daniel C.

Metal deforming

By pulling workpiece through closed periphery die

Movable die

72283, 72467, B21C 302

Patent

active

051560364

ABSTRACT:
Method and apparatus for minimizing or eliminating die breakage when performing a drawing operation on an open-sided channel member. A drawing die has an insert portion that includes a discrete element mounted for transverse movement with respect to the drawing direction. During a drawing operation, the discrete element is allowed to move transversely with respect to the remainder of the drawing die in response to variations in the drawing force transmitted to the discrete element through the channel member being drawn.

REFERENCES:
patent: 1004083 (1911-09-01), Ritter
patent: 1914997 (1933-06-01), LaBrie
patent: 1979430 (1934-11-01), Wright
patent: 2231336 (1941-02-01), Heron
patent: 2335939 (1943-12-01), Hill
patent: 2355734 (1943-05-01), Katz
patent: 3494165 (1970-02-01), Preusch
patent: 3961515 (1976-06-01), Schmale
patent: 4856703 (1989-08-01), Uhlmann
patent: 4876869 (1989-10-01), Saeki et al.

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