Laser transmission welding of semi-crystalline thermoplastics - part i: optical characterization of nylon-based plastics

摘要

Optimization of welding for thermoplastic parts strongly depends ont he material properties, part design, as well as the welding operating technology conditions. Laser transmission welding requires preferential deposition of energy and subsequent melting of the material int eh interfacial zone. This is optimized when the laser beam is transmitted through the transparent part and absorbed by the adjoining part to be welded. Energy deposition can be controlled to some extent by adjusting laser parameters (power, choice of beam focussing optics, sweep rate etc.)