Method and apparatus for manufacturing hollow tubular members

Details Method and apparatus for manufacturing hollow tubular members Method and apparatus for manufacturing hollow tubular members

1987-03-18

1988-04-05

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Electrical device making

29825, 295641, 72283, 228 175, H01R 4300, B23P 2300

Patent

active

047349816

ABSTRACT:
There is disclosed a method and apparatus for adjusting the thickness of a hollow tubular member to provide a cross-section of constant area, such adjustment being inversely dependent upon detected increases or decreases in the thickness of the metal strip. The method and apparatus provide for the formation and welding of a metal strip into a hollow tubular member; the application of longitudinally directed, braking or pushing forces to the hollow tubular member; and then the continuous reduction of the hollow tubular member to achieve a cross-section of constant area.

REFERENCES:
patent: 3075484 (1963-01-01), Benteler
patent: 3131803 (1964-05-01), Hill et al.
patent: 3243986 (1966-04-01), Douthett et al.
patent: 3271987 (1966-09-01), Douthett et al.
patent: 3332138 (1967-07-01), Garner
patent: 3737997 (1973-06-01), Davis
patent: 3812702 (1974-05-01), Benteler et al.
patent: 3874076 (1975-04-01), Tsukamoto et al.
patent: 4196607 (1980-04-01), Youtsey et al.

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