LASER WELDING METHOD AND METHOD FOR MANUFACTURING ELECTRIC ROTATING MACHINE USING SAME

In a laser welding method, a material (10) containing copper as a main component is heated by irradiation with a first laser light (L 1), and is welded by irradiation of a portion, which has been irradiated with the first laser light (L1), of the material (10) with a second laser light (L2) with whi...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIKAWA, Takashi, SUGA, Tetsuo, SATO, Yuji, TSUKAMOTO, Masahiro, ITOU, Masatoshi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION 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:	In a laser welding method, a material (10) containing copper as a main component is heated by irradiation with a first laser light (L 1), and is welded by irradiation of a portion, which has been irradiated with the first laser light (L1), of the material (10) with a second laser light (L2) with which the energy absorption rate of copper contained in the material (10) increases by an increase in the temperature of the material (10).