Simulation-based investigation on the temperature influence in laser transmission welding of thermoplastics

Numerical Simulation of Laser Transmission Welding—A Review on Temperature Field, Stress Field, Melt Flow Field, and Thermal Degradation

“…The mechanical behavior in welding is calculated and simulated to obtain the appropriate process parameters to minimize the residual stresses. The stressstrain model was developed through the theory of thermoelasticity and plasticity [75], in which the overall strain consists of the elastomeric, plastic, and thermal components. The errors between the simulated residual stresses and the experimental results are due to the simplification made in the simulation model.…”

Laser welding of thermoplastics: An overview on lasers, materials, processes and quality

“…The combination of the process parameters determines the welding temperature, which influences the weld seam quality. Lakemeyer et al [117] designed a set of experimental examinations for quasi-simultaneous LTW to determine whether the energy input or the welding temperature has higher influence on the weld quality. They determined the influence of the energy input on the weld quality in PBT and PC and calculated the welding temperature for every L.F.F.F.…”

“…The analysis showed a higher influence of the welding temperature on the weld strength compared to the energy input. For industrial processes the welding temperature is more suitable for the characterization of optimal process parameters, although the energy input may be used as well [117].…”

“…Laser power [28,29,31,33,34,35,37,12,46,41,43,62,63,88,89,50,52,53,54,55,56,57,64,65,6,70,71,72,82,83,101,102,114,112,73,58,90,91,75,109,59,117,105,120,116,84] Welding speed [28,29,31,33,37,12,46,…”