ANALYSIS OF WELD SEAM QUALITY FOR LASER TRANSMISSION WELDING OF THERMOPLASTICS BASED ON FLUID DYNAMICAL PROCESSES

摘要

Even though laser transmission welding (LTW) has already been implemented in industrial production, there are still process limitations rendering it uncompetitive with conventional processes and preventing its reaching full potential. The influence of the key process parameters and their interdependence is still not completely understood. This understanding is a condition for the optimization of the weld joint along with a more detailed theoretical description of the thermo-physical processes involved. This paper will present the results of an on-line detection method, the correlation to the mechanical properties and the FEA simulation, as well as possible approaches for overcoming existing limitations.