WIRE FEEDING DEVICE, ARC WELDING DEVICE AND WIRE FEEDING METHOD

The wire feeding device 4 that feeds welding wire W from the wire source 3 to the welding torch 13 is disposed between the wire source 3 and the welding torch 13 and is configured to temporarily accommodate the welding wire W fed from the wire source 3 and to feed the accommodated welding wire W to...

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Bibliographische Detailangaben
Hauptverfasser:	NISHISAKA, Futoshi, YOSHINAGA, Akio, KAWAI, Hirokazu, NAGAMI, Kazutoshi, MANABE, Haruhiko, MIYAHARA, Hisao, INOUE, Masahiro
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:	The wire feeding device 4 that feeds welding wire W from the wire source 3 to the welding torch 13 is disposed between the wire source 3 and the welding torch 13 and is configured to temporarily accommodate the welding wire W fed from the wire source 3 and to feed the accommodated welding wire W to the welding torch 13. In the case where feeding of welding wire W is abnormally stopped, if the acceptance unit accepts instructions for increasing or decreasing, the wire feeding device 4 controls the speed of feeding welding wire W fed by the first feeding part 41d or the second feeding part 42 so that a difference is generated in the feeding speed of the first feeding part 41d and the second feeding part and the accommodated amount of welding wire W is in a range from the lower limit of normal to an upper limit of normal.