Study on the incremental sheet forming of CFRP sheet

Due to the increasing demand, carbon fiber reinforced plastics (CFRP) have become more and more important in many fields. In this study, a hybrid incremental sheet-forming technique for carbon fiber reinforced thermosets (CFRTS) was developed and applied. In this technique, a layer of CFRP sheet was placed under another layer of mild steel sheet called the dummy sheet. Various experiments were conducted, and the results show that this forming strategy can be applied to CFRP sheets having single-or multi-layer prepregs. In addition, the mesoscale model simulation using ABAQUS/Explicit was performed for the incremental sheet forming (ISF) process of the CFRP sheet, and the effect of orientation of fiber on the forming process was discussed. The FE simulation results for the ISF of the CFRP sheet was able to predict the deformation shape and shear angle of the CFRP sheet accurately compared to the experiment.