Welding process to produce chassis component of motor vehicle, comprises providing first and second metal sheets to be welded together, fixing edge region of first metal sheet to second metal sheet, and scanning position of the edge region

摘要

The welding process comprises providing first (1) and second metal sheets (2) to be welded together, of which the first- and/or the second metal sheet is a zinc-coated steel sheet, fixing an edge region (3) of the first metal sheet to the second metal sheet, scanning a position of the edge region of the first metal sheet in relation to the second metal sheet by using an optoelectronic scanning device, and providing a laser welding device having a laser beam generating device and laser beam deflection device, which is controlled and/or regulated by electronics and is based on movable mirrors. The welding process comprises providing first (1) and second metal sheets (2) to be welded together, of which the first- and/or the second metal sheet is a zinc-coated steel sheet, fixing an edge region (3) of the first metal sheet to the second metal sheet, scanning a position of the edge region of the first metal sheet in relation to the second metal sheet by using an optoelectronic scanning device, and providing a laser welding device having a laser beam generating device and a laser beam deflection device, which is controlled and/or regulated by electronics and is based on movable mirrors. The laser beam deflection device is provided under the consideration of position signals, which are supplied to the electronic from the optoelectronic scanning device, to deflect the laser beam generated by the laser beam generating device around the both metal sheets to be welded together along a predetermined web. The edge region of the first metal sheet encloses with the second metal sheet at an angle of 5-15[deg] . The edge region of the first metal sheet does not laminarily contact the second metal sheet along a contact line. The laser welding device has a lens arrangement, by which the laser beam is focused on a point-like area of the predetermined web.