METHOD FOR LASER WELDING OF A BOILER

The water heater ( 2 ) or steam generator comprises a chamber ( 4 ) in two sections ( 5, 6 ) formed in particular by stamping. Inside this chamber a heating element ( 8 ) is arranged, which has a spiral-shaped main section ( 10 ) and two end sections ( 11, 12 ) passing through two circular openings...

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Bibliographische Detailangaben
Hauptverfasser:	MONTANARO, MARIO, NAMAN, DAVID, BELTRAMI, GUSTAVO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS RANGES SOLDERING OR UNSOLDERING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING VENTILATING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The water heater ( 2 ) or steam generator comprises a chamber ( 4 ) in two sections ( 5, 6 ) formed in particular by stamping. Inside this chamber a heating element ( 8 ) is arranged, which has a spiral-shaped main section ( 10 ) and two end sections ( 11, 12 ) passing through two circular openings of the chamber. The two end sections are welded to the chamber by a laser beam such that the weld obtained is continuous and ensures a good mechanical fixture of the heating element and an adequate tightness for the water heater or steam generator. For this purpose, a flange ( 18 ) is arranged at the periphery of each opening. Moreover, the two sections of the chamber have a widened edge ( 28 ) to allow them to be welded effectively.