Material composites serve to combine the positive material properties of the composite partners. In the case of plastic-metal hybrids, they combine the low density of the polymer component with the high strength and stiffness of the metal component. Hybrids based on thermoplastic materials represent the state of the art and are used in numerous series applications in the industrial environment. In contrast, the use of thermoset-metal-hybrids for series components is often hindered by the complex production of such composites, e.g. using autoclave technology. In order to make the excellent properties of thermoset materials, such as good temperature and chemical resistance and a low creep tendency, usable for series applications, a method and technology development along the entire product cycle is necessary. This topic is being addressed by the TU Chemnitz in cooperation with an industrial project consortium as part of a project funded by the German Federal Ministry of Education and Research.
A first step is the development of a suitable test method for the evaluation of different adhesion strenghts. In this publication, the possibility of producing thermoset based single lap shear specimens in the injection molding process will be presented. Thermoset molding compounds based on epoxy resin and phenolic resin as well as different types of steel are used to produce these test specimens. Furthermore, the influence of various surface treatments on the adhesive strength of the thermoset-metal-hybrids is investigated. The focus of the investigations is on increasing the adhesive strength by using different surface coatings and textures.