Abstract

Lightweight constructions made of different materials are becoming increasingly important and joining of metal-plastic hybrids is a major challenge in this context. This paper investigates experimentally the electromagnetic joining of tubes made of aluminum alloy 6082 and thermoplastic polycarbonate. Therefore, electromagnetic joining tests, combined with destructive push-out tests and non-destructive computer tomography scans were conducted. The investigations showed a fundamental dependence of the joint strength on the diameter ratio of the inner joining partner. By increasing the ratio of inner to outer diameter, the transferable push-out force was increased by factor fifteen. Furthermore, for lower ratios, macroscopic cracks were detected that limited the transferable forces.

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