Gebauer, JanaJanaGebauerFischer, MatthieuMatthieuFischerLasagni, Andrés-FabiánAndrés-FabiánLasagniKühnert, InesInesKühnertKlotzbach, AnnettAnnettKlotzbach2022-03-052022-03-052018https://publica.fraunhofer.de/handle/publica/25417410.2351/1.5036803The aim of this work is to investigate the influence of surface structures on the adhesion strength of metal-plastic hybrids. Aluminum substrates were structured with continuous wave and picosecond pulsed laser systems and overmolded with a thermoplastic polyamide material. The materials were examined in terms of structure topography, molding accuracy, and a tensile shear test. It was found that the surface pretreatment by laser structuring with continuous wave laser enhances the effective joining surface, creates a mechanical interlocking, and increases the adhesion strength of the hybrid compared to the untreated condition significantly. A shear strength of 11.9 MPa was achieved, which exploits 90% of the pure polyamide properties.encw laserinjection moldinglaser structuringmetal-plastic hybridultrashort-pulse laser621671journal article