LASER BEAM WELDING METHOD FOR COPPER STRUCTURE

PURPOSE:To obtain stable penetration and besides, to obtain a weld zone without failure by using a wire having specified content of Si, Mn, Fe and Al at the time of subjecting the copper structure to laser beam welding. CONSTITUTION:When a lap part, etc., of a copper pipe 2 and a copper mesh fin 1 a...

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Bibliographische Detailangaben
Hauptverfasser:	MORIBE MASANORI, NOGUCHI MASATAKA, MIZOGUCHI TAKATOO, KAWAMURA YASUSUKE
Format:	Patent
Sprache:	eng
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:	PURPOSE:To obtain stable penetration and besides, to obtain a weld zone without failure by using a wire having specified content of Si, Mn, Fe and Al at the time of subjecting the copper structure to laser beam welding. CONSTITUTION:When a lap part, etc., of a copper pipe 2 and a copper mesh fin 1 are subjected to laser beam welding, the wire 8 having the content of Si, Mn, Fe, Al and Ni >=0.4% in total and having the composition consisting of each content of Si, Mn, Fe and Al