Method for eliminating distortion at the end of a tube bend

Details Method for eliminating distortion at the end of a tube bend Method for eliminating distortion at the end of a tube bend

1983-03-18

1984-11-13

Combs, E. Michael

Metal deforming

By deflecting successively-presented portions of work during...

By use of work-contacting wiper and moving, work-holding form

72370, B21D 905

Patent

active

044818033

ABSTRACT:
A tube is bent a desired angle by locating it over a mandrel, clamping the tube between a clamp die and bend die, rotating the clamp and bend dies through the desired angle, where extraction of the mandrel from the tube is initiated before rotation of the dies is completed.

REFERENCES:
patent: 1903436 (1933-04-01), Brown
patent: 3155139 (1964-11-01), Hautau
patent: 4085608 (1978-04-01), Franks et al.

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