Bellows forming method and apparatus

Details Bellows forming method and apparatus Bellows forming method and apparatus

1974-05-30

1976-02-10

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72105, B21D 1506

Patent

active

039370518

ABSTRACT:
In bellows forming with internal and external forming rolls, the external forming roll is rigidly supported, as each convolution is formed in a blank, to permit accurate control of each convolution. The blank is indexed independently of the convolutions.

REFERENCES:
patent: 220991 (1879-10-01), Ross
patent: 1456069 (1923-05-01), Mallory
patent: 3435651 (1969-04-01), McInnis
patent: 3509747 (1970-05-01), Ogilvie

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