CAD kernel based simulation of milling processes

This paper describes a simulation method for NC programs. The simulation uses real axis values from a real CNC as a basis for the simulation of the generated NC program, respectively the milling strategy. To simulate the milling process by means of material removal at the virtual work piece a real CAD core was used. The CAD kernel based material removal simulation allows a close to reality simulation of the real executed NC program and enables a comparison between the simulated work piece geometry and the target CAD geometry directly in a CAD program.