Method of welding a spiral spring to produce a toroidal ring

Details Method of welding a spiral spring to produce a toroidal ring Method of welding a spiral spring to produce a toroidal ring

1976-10-20

1978-10-24

Goldberg, E. A.

Electric heating

Metal heating

For bonding with pressure

219 58, 219107, B23K 1102

Patent

active

041223268

ABSTRACT:
A toroidal ring made from a spiral spring with contiguous turns, such as those used for constituting the inner core of a metal sealing ring. The ring has a weld without filling metal connecting together the two end turns of the spring, this weld being such that continuity of the wire of the spring is provided without altering the contiguous configuration of the turns and the mechanical, physical and chemical properties of the spring are substantially unchanged at this weld. The weld can advantageously be effected by a resistance weld performed with a pulse of electric current.

REFERENCES:
patent: 2018380 (1935-10-01), Pfeiffer
patent: 2766983 (1956-10-01), Taylor
patent: 3190633 (1965-06-01), Jacks
patent: 3259969 (1966-07-01), Tessman
patent: 3482462 (1969-12-01), Dahlem
Welding Handbook Sixth Edition, 1969, AWS, New York, N.Y., pp. 536-537.
The Welding Handbook, 1942, p. 366.

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