Gas metal arc welding apparatus for repairing misaligned tube ho

Details Gas metal arc welding apparatus for repairing misaligned tube ho Gas metal arc welding apparatus for repairing misaligned tube ho

1978-04-14

1980-09-30

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

219 602, 219 74, 21912511, 21913743, 21913744, B23K 912, B23K 916

Patent

active

042257727

ABSTRACT:
A welding apparatus including a nozzle assembly having a contact extension and a contact tip for guiding a consumable welding wire into a tube hole. The consumable welding wire is guided into the tube hole and an electric current is passed to the wire to produce an arc between the tip of the wire and the sidewall of the tube hole, melting the wire and supplying filler weld to the hole. The nozzle assembly has a gas nozzle; and, during the welding process, an inert gas is delivered into the tube hole through the gas nozzle.

REFERENCES:
patent: 1508713 (1924-09-01), Noble
patent: 3440393 (1969-04-01), Henderson
patent: 3567900 (1968-08-01), Nelson
patent: 3590212 (1971-06-01), Corrigall
patent: 3597576 (1971-08-01), Bernard
patent: 4047656 (1977-09-01), McComb

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