METHOD FOR JOINING STEEL TUBE WITH MESH FIN

PURPOSE:To provide a stable joined part at high productivity by arranging the solder between a steel tube to be joined and a mesh fin, irradiating the laser beam from the mesh fin side, and executing the joining while blowing the shield gas. CONSTITUTION:The solder 3 is arranged on the surface to be...

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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 provide a stable joined part at high productivity by arranging the solder between a steel tube to be joined and a mesh fin, irradiating the laser beam from the mesh fin side, and executing the joining while blowing the shield gas. CONSTITUTION:The solder 3 is arranged on the surface to be joined of a steel tube 2 with a mesh fin 1, the tube and the mesh fin are fixed by using a jig, the mesh fin 1 side is irradiated with the laser beam 6 while moving along the steel tube 2 to be heated, and the soldering is executed by melting or solidifying the solder. The working gas 7 is supplied to a laser beam irradiating part in order to prevent the excessive heat input, and the fume is blown off. A structure to be joined can be manufactured at high productivity without giving damages both to the steel tube and the mesh fin with a simple constitution and at low manufacturing cost.