| 摘要 |
PROBLEM TO BE SOLVED: To provide a consumable-electrode type pulse arc welding method capable of sufficiently reducing the generation amount of spatter. SOLUTION: In the consumable-electrode type pulse arc welding method for generating the arc discharge at each pulse by supplying the periodic pulse current between a fore end of an electrode wire and a base material, the current changing rate in a pulse fall area of the pulse current is set to be≥700 A/ms, and the content of potassium in vegetable oil coated on a surface of the electrode wire is set to be≥5 mg and≤50 mg per 10 kg of the wire weight. COPYRIGHT: (C)2009,JPO&INPIT
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