ARC WELDING CONTROL METHOD AND ARC WELDING DEVICE

Disclosed is an arc welding control method of controlling a welding current (Ia) in short-circuit arc welding of feeding a welding wire (3) toward a base metal (5) and alternating a short-circuit state and an arc state. The arc welding control method includes: executing, in the short-circuit state,...

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Bibliographische Detailangaben
Hauptverfasser:	KOWA, Masaru, NOGUCHI, Takahiro, FUJIWARA, Junji, EGAWA, Haruki, NAKAGAWA, Akira
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	Disclosed is an arc welding control method of controlling a welding current (Ia) in short-circuit arc welding of feeding a welding wire (3) toward a base metal (5) and alternating a short-circuit state and an arc state. The arc welding control method includes: executing, in the short-circuit state, a first increase in the welding current (Ia) with a first slope (S1), a first decrease in the welding current (Ia) to a first bottom value (B 1) after executing the first increase, a second increase in the welding current (Ia) with a second slope (S2) after executing the first decrease, and a second decrease in the welding current (Ia) to a second bottom value (B2) that is smaller than the first bottom value (B1) after executing the second increase to shift a state to the arc state.