Method and apparatus for arc welding

Details Method and apparatus for arc welding Method and apparatus for arc welding

1984-01-23

1985-10-15

Envall, Jr., Roy N.

Electric heating

Metal heating

By arc

2191372, 219136, B23K 912

Patent

active

045476543

ABSTRACT:
An arc welding process is provided with a preheating step in which a consumable wire electrode is heated prior to insertion into the electrode stick-out region. This is accomplished by the circulation of current from a preheating power supply through a segment of the wire. Both gas-metal and gas-tungsten arc welding processes are disclosed, along with apparatus used in these processes.

REFERENCES:
patent: 2847555 (1958-08-01), Yenni
patent: 3274371 (1966-09-01), Manz et al.
patent: 3600549 (1971-08-01), Olshansky

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