Patent ID: 8153929

Claim:
A method for the laser welding of a composite material (V) to a component ( 11 ) for the production of a solar collector element (E), the method comprising the steps of: providing the composite material (V) comprising a strip-shaped substrate ( 1 ) composed of a metal having high reflectivity to laser radiation, said substrate having a first side (A) and a second side (B), wherein a dielectric coating ( 7 ) is situated at least on the first side (A), the dielectric coating ( 7 ) having a thickness (D B ) in the range of 140 nm to 210 nm; and projecting a laser beam (L) at an acute orientation angle (μ) at least onto the first side (A) of the substrate ( 1 ) provided with the dielectric coating ( 7 ), in order to produce one of a continuous weld seam and discrete weld spots, wherein the laser beam (L) is radiated in onto the composite material (V) in such a way that the radiated-in energy of the laser beam (L) is absorbed to the extent of at least 15 percent.