Relationship between Optical Properties and Optimized Processing Parameters for through-Transmission Laser Welding of Thermoplastics

Abstract

In previous studies, the results of an optical characterization (laser energy transmission, absorption, etc.) at a wide range of infrared wavelength for various nylon based plastics (unfilled and reinforced) with the influence of various colorants have been reported. In conjunction with these results, an analysis on optimized mechanical performance of the laser welded joints was also reported. In this current paper, we will try to increase the understanding of the plastics engineering community regarding the relations between optical properties of thermoplastics and optimized processing parameters of through-transmission laser welding (simultaneous welding mode).