Welding of laser-sintered and injection-moulded plastic components
M. Sc. Michael Heilig, Dr. Christian Balzer, Dr. Eduard Kraus, Dr. rer. nat. Thomas Hochrein, Prof. Dr.-Ing. Martin Bastian
The weldability of laser-sintered and injection-moulded plastic components was investigated for the ultrasonic and heated tool welding procedures. Polypropylene, mineral-filled Polyamide 6 as well as unfilled and glass-bead-filled Polyamide 12 served as materials. While all the heated-tool-welded joints achieved the respective reference strengths of the injection-moulded materials, this was only the case for Polyamide 12 with ultrasonic welding. In contrast, polypropylene and Polyamide 6 exhibited strength reductions up to 30%.
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