Abstract
Laser transmission welding of polymers is becoming more and more important in industrial applications. In contrast to other polymer welding processes, for example hot plate welding or vibration welding, the exact definition of the major process tool, the laser beam, is challenging. The comparison of investigation results with each other can be very difficult, because of, for example, the different intensity distribution and the specimen geometries. In this study, a method to match the laser power profiles of two different laser systems was developed. Shear-test results confirm that statistically equal weld strengths can be achieved when laser power profiles and test geometries are matched.