Drawing technique

Details Drawing technique Drawing technique

1979-01-23

1980-11-11

Mehr, Milton S.

Metal deforming

By pulling workpiece through closed periphery die

Utilizing plural metal-deforming tools

72467, B21C 306

Patent

active

042325412

ABSTRACT:
A method and apparatus for improving the interior or exterior surface smoothness of a tube shell during cold draw operations is disclosed wherein the final reduction of the tube shell is completed within the die land.

REFERENCES:
patent: 2843862 (1958-07-01), Smith
patent: 3513682 (1970-05-01), Rowell
patent: 3605476 (1971-09-01), Hinshaw
patent: 3744290 (1973-07-01), Sirois

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