Method and apparatus for TIG welding

Details Method and apparatus for TIG welding Method and apparatus for TIG welding

1987-12-29

1989-08-29

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219137PS, B23K 909

Patent

active

048619655

ABSTRACT:
A method and apparatus for TIG welding by passing an alternating current between a non-consumable electrode and a workpiece to form an arc, which apparatus comprises a single reactor, passing a direct current from a direct current power supply through a first portion of the reactor and in a negative direction from the workpiece to the electrode for creating a heating cycle, switchably disconnecting the direct current power supply from the circuit and immediately connecting the second portion of the reactor in a positive direction across the electrode and workpiece for creating a short cleaning cycle for cleaning the workpiece preparatory to the next heating cycle. These cycles are continued to create a TIG welding process.

REFERENCES:
patent: 3382345 (1968-05-01), Normando
patent: 3728515 (1973-04-01), Gedgaudas
patent: 4742208 (1988-05-01), Overman

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