MODELLING LASER LIGHT TRANSMISSION IN THERMOPLASTIC COMPOSITES USING MONTE-CARLO SIMULATION

摘要

The distribution and quantity of laser energy reaching the weld interface are both important for predicting the quality of a laser-transmission weld.A Monte-Carlo model for simulating the path of laser light through light-scattering plastic parts has been developed and validated.The model accounts for absorption,scattering,and reflection in the transparent polymer.The model outputs include the transmittance of the inputted laser light as well as the energy density distribution at the weld interface.