Consumable-electrode AC gas shield arc welding method and appara

Details Consumable-electrode AC gas shield arc welding method and appara Consumable-electrode AC gas shield arc welding method and appara

1990-07-23

1993-07-06

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219137PS, 21913771, B23K 909

Patent

active

052256600

ABSTRACT:
In a consumable electrode gas shielded arc welding system, alternating current power is applied across the electrode and the base metal. The period during which the electrode is kept negative is varied to correspond to the electrode feeding rate. In addition, the levels of the output power during the negative and positive periods are individually set.

REFERENCES:
patent: 3350538 (1967-10-01), Johnson
patent: 3382345 (1968-05-01), Normando
patent: 4876433 (1989-10-01), Kashima et al.

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