This paper is dealing with the influence of processing parameters for manufacturing of steel-carbon-fiber-reinforced-plastic (CFRP) hybrid plates by using the one-shot-hybrid resin-transfer-moulding (OSH-RTM) process. A design of experiments study was carried out. The quality of the manufactured parts was quantified by the bending modulus, the apparent interlaminar shear strength (ILSS), the maximum deflection and the density of the CFRP. The following changeable processing parameters were chosen: mould temperature, resin temperature, change in mass flow and maximum injection pressure. It is shown that the mould temperature and the change in mass flow show significant impact on the flexural modulus, density and maximum deflection of the plate while there is no significant impact on the apparent ILSS. Furthermore, the interaction between the mould temperature and resin temperature is having an influence on the flexural modulus and density.
HybridRTM terms a publicly funded project, which aims at the development of a processing technique for manufacturing of light weight structural components from hybrid materials. In particular, components involving metal as well as fibre-reinforced polymer composite materials are manufactured in a single processing step by means of the resin transfer moulding (RTM) technique. Project activities include material development and characterization, modelling of thermally induced residual stresses, process simulation, mould development as well as model-based process control in order to ensure consistently high component quality. This paper outlines the fundamental idea of the project and summarizes the most important results gained during the first two years of project activities.
The production of fibre metal laminates (FMLs) is a time consuming and expensive procedure. This paper shows the application of the vacuum assisted resin transfer moulding ((VA)RTM) technique using an injection unit and a rigid mould for the production of FMLs. This processing technique, in combination with a corona discharge activation of the aluminium surface, can lead to enormous reductions to the cycle time. To prove the quality of the produced FML, impact tests were carried out. The influence of the impact energy on the specimen is observed using a deformation scan and ultrasound C-Scan. Furthermore, the peak forces and permanent deflections of the tested specimen were analysed.
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