Electrode carrying wire for GTAW welding

Details Electrode carrying wire for GTAW welding Electrode carrying wire for GTAW welding

1988-12-05

1990-05-08

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219136, B23K 924

Patent

active

049240536

ABSTRACT:
A welding torch for gas tungsten arc welding apparatus has a hollow tungsten electrode including a ceramic liner and forms the filler metal wire guide. The wire is fed through the tungsten electrode thereby reducing the size of the torch to eliminate clearance problems which exist with external wire guides. Since the wire is pre-heated from the tungsten more wire may be fed into the weld puddle, and the wire will not oxidize because it is always within the shielding gas.

REFERENCES:
patent: 3612807 (1971-10-01), Liefkens
patent: 4048465 (1977-09-01), Manz
patent: 4543461 (1985-09-01), Hill

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