Method of making seamless metal tubes

Details Method of making seamless metal tubes Method of making seamless metal tubes

1974-10-29

1976-03-09

Larson, Lowell A.

Metal deforming

By pulling workpiece through closed periphery die

With cutting

72283, B21C 100

Patent

active

039423522

ABSTRACT:
A seamless pipe made by extrusion or piercing and having eccentric interior has the outside of one of its ends turned to concentric dimensions with its interior and is pulled through a peeling and scraping tool affixed to a positioning die, and over a mandrel which widens the pipe particularly in the zone of peeling.

REFERENCES:
patent: 170806 (1875-12-01), Benwell
patent: 2183861 (1939-12-01), Cotter, Sr.
patent: 3292407 (1966-12-01), Poncar
patent: 3738146 (1973-06-01), Gunn

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