Finished Surface Simulation Method to Predicting the Effects of Machine Tool Motion Errors

This paper proposes a method of simulating the effects of the machining center motion errors onto the fin- ished surface. The proposed simulation method con- sists of the servo delay models of feed drive systems, a geometrical error model of the machine tool, a ma- chined shape simulator, and a renderer. In order to compare the simulated finished surfaces and the ma- chined one, tests consisting of machining spheres are carried out using a ball-end mill. As result, it is proven that the proposed simulation method can adequately simulate the effects of motion errors on the finished surface. In addition, an investigation into the cause of blemishes is carried out. It is also confirmed that the proposed method can be an effective tool in the identi- fication of the causes of blemishes on the surface.