Laser welding device comprises two laser light sources for producing a first- and a second welding beam, a support table for mounting a two-component object to be welded with a basic welding workpiece

摘要

The laser welding device comprises two laser light sources (3) for producing a first- and a second welding beam (4, 5), a support table (8) for mounting a two-component object to be welded with a basic welding workpiece directly overlying on the support table and predominantly absorbing for welding beams in the area of a transparent welding workpiece on the basic welding workpiece adjacent in the area of welding seam (11) to be produced, and a pressure body for pre-stressing of the workpiece against the support table. The laser welding device comprises two laser light sources (3) for producing a first- and a second welding beam (4, 5), a support table (8) for mounting a two-component object to be welded with a basic welding workpiece directly overlying on the support table and predominantly absorbing for welding beams in the area of a transparent welding workpiece on the basic welding workpiece adjacent in the area of welding seam (11) to be produced, and a pressure body for pre-stressing of the workpiece against the support table to produce a system pressure between the workpieces in the area of the welding seam, where the welding beams are guided so that they are separated in the area of the adjoined welding workpiece predominantly from each other and pass in the area of the basic welding workpiece predominantly overlapped from one another. One of the laser light sources is generated produces the first welding beam and the another laser light source produces the second welding beam. A beam splitter splits initially produced outlet laser beam into the welding beam. The beam splitter is implemented as a semi-transparent mirror, which represents a controlled displaceable scanning mirror for guiding a welding beam. A guidance of the welding beam is provided such a way that an angle (alpha ) between the welding beams during passage through the adjoined welding workpiece is greater than 90[deg] or an angle (beta ) between the welding beams during passing through the adjoined welding workpiece is less than 90[deg] . An independent claim is included for a method for welding a basic workpiece.