Manufacturing method for angled steel pipes

Details Manufacturing method for angled steel pipes Manufacturing method for angled steel pipes

1997-01-28

1998-09-08

Hail, III, Joseph J.

Metal deforming

By use of roller or roller-like tool-element

Included in roller-cluster

72 52, 72200, B21D 1310, B21D 3902, B21D 2706

Patent

active

058029036

ABSTRACT:
According to the present invention, angled steel pipes manufactured by cold forming can be manufactured into such angled steel pipes that are soft and highly stretchable over the entire sections thereof, almost free from residual stresses, and have high buckling strength, excellent secondary weldability and sufficient toughness by way of hot draw forming the pipes with an angled steel pipe forming mill.

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