The geometry of the machined surfaces obtained through the global process was studied from both a macroscopic and a microscopic standpoint in order to predict the discrepancies with the nominal model and the local topography respectively. This work has led to the simulation of the geometry on both scales. This model enables one to simulate the effects of variable tool/part feed rates, 3D scallop haight and realistic tool geometries.
In addition, we developed a simulation program and an HMI, using NVIDIA's CUDA GPU-based intensive parallel processing technology to improve simulation computation times. This paves the way to the simulation of geometric discrepancies on smaller scales, as in polishing processes, and to the taking into account of stochastic abrasive degradation phenomena.