Method of forming seam-welded tubes

Details Method of forming seam-welded tubes Method of forming seam-welded tubes

1987-04-06

1988-05-31

Combs, E. Michael

Metal deforming

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

By use of deflector arranged to bend work transversely of...

72 52, 72181, 228147, B21D 512, B23K 3106

Patent

active

047472898

ABSTRACT:
The present invention is directed to a method and apparatus for forming seam welded tubes in which the positions of cage rolls are adjusted in accordance with the thickness, substance and size of a material to be formed into a tube in a process for forming a tube blank for a seam-welded tube by using cage rolls.

REFERENCES:
patent: 3323341 (1967-06-01), Chang
patent: 3472053 (1969-10-01), Chang
patent: 4070887 (1978-01-01), Hankin
patent: 4122696 (1978-10-01), Midzutani et al.
patent: 4299108 (1981-11-01), Kato et al.
patent: 4339938 (1982-07-01), Nakagawa et al.
patent: 4487046 (1984-12-01), Abbey

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