Welding power control apparatus for consumable-electrode type pu

Details Welding power control apparatus for consumable-electrode type pu Welding power control apparatus for consumable-electrode type pu

1997-01-29

1999-02-02

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219137PS, B23K 909

Patent

active

058668730

ABSTRACT:
A welding power control apparatus that removes the effects of shorting and noise to accurately detect droplet separation, thereby reducing spatter during droplet separation and when shorting occurs, and stabilizing welding results is achieved. Welding conditions such as welding voltage, welding current, shorting, and droplet separation are detected. Based on thus detected welding conditions, a pulse wave configuration unit generates a steady-state pulse wave and a compensation pulse wave. The steady-state pulse wave is defined by a pulse height for a pulse period and a base height lower than the first pulse height for a base period. The compensation pulse wave defined by a compensation pulse height lower than the pulse height for a compensation period followed by the pulse wave based on said detected welding conditions.

REFERENCES:
patent: 3781511 (1973-12-01), Rygiol
patent: 5525778 (1996-06-01), Matsui et al.
A Japanese Language Abstract of JP 2-31630.

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