Procedimiento de soldadura por láser de un calentador de agua

摘要

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.