TACK WELDING METHOD AND TACK WELDING DEVICE

To provide a tack welding method and a tack welding apparatus that can improve the strength of a tack-welded joint portion and reduce the height of a reinforcement bead.A tack welding method of the present embodiment is a tack welding method of tack-welding a part of a joint portion 3 of a first joi...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUO, Hiroki, MAKI, Satomi, OWAKI, Katsura, KAWAGUCHI, Isao, YAMAMOTO, Kosei
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:	To provide a tack welding method and a tack welding apparatus that can improve the strength of a tack-welded joint portion and reduce the height of a reinforcement bead.A tack welding method of the present embodiment is a tack welding method of tack-welding a part of a joint portion 3 of a first joint 1 and a second joint 2 at a predetermined interval before main welding. In the tack welding method, a filler metal W is supplied to the joint portion 3, laser light L is deflected and irradiated to the joint portion 3, and the filler metal W is cut with the laser light L to be welded to the joint portion 3.