Method and apparatus for tig welding

Details Method and apparatus for tig welding Method and apparatus for tig welding

B - Operations, Transporting

23

K

327/70, 327/71

B23K 9/10 (2006.01) B23K 9/09 (2006.01) B23K 9/16 (2006.01)

Patent

CA 1312124

L-764 METHOD AND APPARATUS FOR TIG WELDING Abstract of Disclosure 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 pow- er 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 di- rect 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.

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