Abstract

Polymer-metal-hybrid components show a high potential regarding to lightweight applications. In particular, due to their fundamental differences in chemical and physical properties, new approaches must be developed for common industrial joining processes. In this study a new approach in order to characterize the joining zone formation for thermal direct joining based on resistance spot welding is reported. The feasibility of joining in half-section set-up using a coaxial electrode arrangement was investigated. The impact of the welding parameters on the joining zone formation was investigated. The parameters influencing the melting layer formation were pointed out.

Highlights

  • The use and the advancement of constructive and material lightweight principles are essentially in order to achieve the ambitious aims for the reduction of resource consumption in various industries

  • Polymer-metal-hybrid components show a high potential regarding to lightweight applications. Due to their fundamental differences in chemical and physical properties, new approaches must be developed for common industrial joining processes

  • In this study a new approach in order to characterize the joining zone formation for thermal direct joining based on resistance spot welding is reported

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Summary

Introduction

The use and the advancement of constructive and material lightweight principles are essentially in order to achieve the ambitious aims for the reduction of resource consumption in various industries. The current development confirms more and more the importance of mixing different materials with various characteristics. While in case of joining metals to each other, such as for example aluminum to steel and copper to aluminum the formation of intermetallic compounds is a sophisticated target, new and completely different challenges occur in metal-plastic joints, which turn to be a very interesting topic in research and development at the moment. Due to fundamental differences in chemical and physical properties, the challenge is to find new approaches for common joining processes. These material combinations are joined by mechanical processes or adhesive bonding. Mechanical joining processes exhibit several disadvantages, especially notches and stress peaks. In particular thermal joining processes provide several benefits compared to the represented disadvantages

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