Hot wire welding system

Details Hot wire welding system Hot wire welding system

1982-06-24

1984-08-07

Shaw, C. C.

Electric heating

Metal heating

By arc

219137PS, B23K 910

Patent

active

044645589

ABSTRACT:
A hot wire welding system including a non-melting metal electrode, a supply of filler metal to be fed to a weld puddle formed by an arc, a D.C. power source for supplying both an arc current and a filler metal heating current, a first control circuit for controlling the filler metal heating current with a constant voltage characteristic, and a second control circuit for controlling the arc current with a constant current characteristic. By eliminating one of the two power supplies which was required in prior art systems, a significant reduction in size and complexity is obtained.

REFERENCES:
patent: 3122629 (1964-02-01), Manz
patent: 3483354 (1969-12-01), Manz et al.
patent: 3549857 (1970-12-01), Needham et al.
patent: 3627974 (1971-12-01), Normando
patent: 4396823 (1983-08-01), Nihei et al.
"High Deposition Gas Tungsten-Arc Welding" by J. F. Saenger and A. F. Manz, dated May 1968, pp. 386-393.
"Gas Tungsten-Arc Hot Wire Welding--A Versatile New Production Tool" by J. F. Saenger, paper presented at the AWS 50th Annual Meeting held in Philadelphia, Pa. during Apr. 24-28, 1968.
"Plasma-Arc Hot-Wire Surfacing--A New High Deposition Process" by E. C. Garrabrant and R. S. Zuchowski, Welding Journal, paper presented at the AWS National Fall Meeting held in Cincinnati, Ohio, during Oct. 7-10, 1968.

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