Method and apparatus for upsetting the ends of steel pipe

Details Method and apparatus for upsetting the ends of steel pipe Method and apparatus for upsetting the ends of steel pipe

1993-10-20

1995-01-10

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Clamp structure constitutes sole initial metal-deforming...

72356, 72370, B21D 4104

Patent

active

053796250

ABSTRACT:
A method and apparatus for working one end of a steel pipe by externally upsetting the end in a first die set and sequentially shifting some of the upset internally by pressing in a second die with a reduced diameter mandrel to form a tapered internal shoulder in the pipe upset in only two passes.

REFERENCES:
patent: 4100781 (1978-07-01), Zawacki
patent: 4192167 (1980-03-01), Huebner
patent: 4845972 (1989-07-01), Takeuchi et al.
patent: 5184495 (1993-02-01), Chunn et al.

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