The goal of the presented research is to predict the material removal that occurs during the polishing process by a simulation based on finite element modelling (FEM). The presented finite element simulation model for PMMA is based on the material parameters for workpiece and polishing tool. Compared to previous research on aspherical elements made out of glass , the model allows the description of the process based on material parameters get out the data sheets. The data derived from the finite element modelling is compared with the polishing results on plastic materials (PMMA). Results of the polishing tests compared with the simulated values will be reported.
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R. Almeida, R. Börret, W. Rimkus, D. Harrison, A. DeSilva, "FEM simulation of the material removal in pad polishing," Proc. SPIE 10326, Fourth European Seminar on Precision Optics Manufacturing, 1032607 (15 June 2017);