Internal wire guide for GTAW welding

Details Internal wire guide for GTAW welding Internal wire guide for GTAW welding

1988-12-05

1989-11-07

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219136, B23K 916

Patent

active

048794465

ABSTRACT:
A welding torch for gas tungsten arc welding apparatus has a filler metal wire guide positioned within the torch, and within the shielding gas nozzle. The wire guide is adjacent the tungsten electrode and has a ceramic liner through which the wire is fed. This reduces the size of the torch and eliminates the outside clearance problems that exist with external wire guides. Additionally, since the wire is always within the shielding gas, oxidizing of the wire is eliminated.

REFERENCES:
patent: 4048465 (1977-09-01), Manz
patent: 4136273 (1979-01-01), Eujita et al.
patent: 4147917 (1979-04-01), Jelmorini
patent: 4205215 (1980-05-01), Willems
patent: 4234778 (1980-11-01), Willems et al.
patent: 4532406 (1985-07-01), Povlick et al.

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