Device for forming a coaxial corrugation in a thin-walled tube

Details Device for forming a coaxial corrugation in a thin-walled tube Device for forming a coaxial corrugation in a thin-walled tube

1987-02-19

1988-05-10

Spruill, Robert L.

Metal deforming

With means to drive tool

Including screw-actuated tool support

72 57, 72367, 72393, 72407, B21J 918, B21D 3908

Patent

active

047427078

ABSTRACT:
For the production of coaxial corrugations in the walls of thin-walled tubes with very tight tolerances, the invention provides a device having jaws adapted to be moved equally in opposite directions and which press against the ends of the tube so as to have a corrugation formed therein so as to feed the tube wall axially towards the corrugation in the process of being generated. The jaws are moved by means of a central lead screw with screw threads of opposite hand.

REFERENCES:
patent: 2773538 (1956-12-01), De Mers
patent: 2796106 (1957-06-01), Wood
patent: 2960141 (1960-11-01), Rutter
patent: 2960142 (1960-11-01), Cimochowski
patent: 3611768 (1971-10-01), Odagaki
patent: 4319471 (1982-03-01), Benteler et al.
Upset Beading Die Cuts Job Time 98%, American Machinist (1952) Oct. 13, p. 161.

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