FIELD: metallurgy.
SUBSTANCE: method consists in directing laser beams to the place of welding and performing welding in an inert gas environment. The laser beams are focused to one optical system, and after that the laser beams are directed to the place of welding through the focal lens. A continuous laser during welding is turned on and off with a delay relative to the pulsed laser.
EFFECT: invention allows to obtain high-quality welded seam at welding of aluminium alloys and difficult-to-weld structure steels by increasing the depth of penetration for more than 2 times and weld details of a complex geometry.
6 dwg, 1 tbl, 3 ex
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