Authors
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Gebauer, J. ; Fischer, M. ; Lasagni, A. ; Kühnert, I. ; Klotzbach, A.
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Title
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Laser structured surfaces for metal-plastic hybrid joined by injection molding
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Date
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28.08.2018
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Number
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55809
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Abstract
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The 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.
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Publisher
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Journal of Laser Applications
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Wikidata
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Citation
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Journal of Laser Applications 30 (2018) ID032021
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DOI
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https://doi.org/10.2351/1.5036803
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Tags
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