Tube drawing technique

Details Tube drawing technique Tube drawing technique

1978-02-21

1979-07-17

Keenan, Michael J.

Metal deforming

By pulling workpiece through closed periphery die

Utilizing plural metal-deforming tools

72479, B21C 316

Patent

active

041611128

ABSTRACT:
A method of tube drawing a cold finished stepped internal diameter tube utilizing a novel mandrel plug having compound working surfaces designed to automatically adjust to the varying internal diameters formed in a tube hollow to be worked as it is drawn through a die.

REFERENCES:
patent: 1685636 (1928-09-01), Kemp
patent: 2306712 (1942-12-01), Poncar
patent: 2663410 (1953-12-01), Kessler
patent: 3783663 (1974-01-01), Prajsnar et al.

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