ERROR SOURCE DIAGNOSTICS USING A TURNING PROCESS SIMULATOR

To improve productivity and quality in machining, it is necessary to u nderstand the interactions among machine tool components and the cutti ng process. This paper presents a model that characterizes interaction s among the subsystems of a computer numerically controlled (CNC) lath e. The model is combined with a cutting force model to obtain a compre hensive turning simulator that simulates the cutting farces and part d imensions. A series of calibration experiments are proposed and implem ented for process simulation. The simulation results are good when com pared with experimental measurements. The interactions among the subun its of a CNC lathe and the cutting process are found to be potentially important.