Innovative approach of joining hybrid components

Joining of dissimilar materials is gaining more and more importance especially in the automotive industry. The latest international initiatives concerning the average fleet CO2-emissions are forcing manufacturers to reduce fuel consumption and exhaust gas output. This can mainly be achieved by reducing the weight of the vehicles. New methods for weight optimization have been enabled by material selections adapted to local strength requirements. While plastics are characterized by low density, low price, and literally unlimited shaping, metals can withstand distinctly higher mechanical loads. Hybrid components combine the contradictory characteristics of plastics and metal and thus can lead to advantageous construction part properties. As a result, light and concomitantly stiff components can be produced. The need for joining these dissimilar materials without using additional material such as adhesives or primers is a central challenge. A new approach to overcome the problems of state-of-the-art technolog...