1993 · 21 citations · 0 references
EngineeringManufacturing EngineeringMaterials EngineeringJoiningOpticsOptoelectronicsJoining ProcessesLaser Beam WeldingLaser Material ProcessingLaser PhysicsWeldingWelding ProcessesAutomotive WeldingLaser JoiningLaser WeldingProcess StabilityProcess Stability AssessmentSeam OptimizationWelding Process OptimizationWelding Process Parameters
Welding with high power CO2-lasers has proved to be an accepted technology for joining in engineering and automotive industry. Combining two beams that originate from two separate lasers on a specific gantry system offers a large range of new parameters, which can be used for optimization of process stability and efficiency as well as of quality of the weld seam. With a special focusing device an independent variation of the focal conditions of each beam can be achieved. The superposition of the beams was investigated with respect to their effects upon the weldability of several materials and improvements of the welding process itself.