Daihen Corporation

Satoshi Arakane

Tetsuo Era

Kento Takada

A control method is provided for arc welding performed by repeating a short-circuit period and an arc period. The method includes: feeding a welding wire by a push-pull feeding control using a push-side feeding motor configured to rotate in a forward direction and a pull-side feeding motor configured to rotate in a forward direction and a reverse direction; temporarily storing a portion of the welding wire in an intermediate wire receptacle disposed along a feeding path between the push-side feeding motor and the pull-side feeding motor; and correcting a pull feeding speed of the pull-side feeding motor based on a store amount of the welding wire in the intermediate wire receptacle. The correction of the pull feeding speed is performed by correcting a waveform parameter for the pull feeding speed based on the store amount in the intermediate wire receptacle.

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Osaka, Japan

Satoshi Arakane