Influence brought about by cutter distortion in exact NC lathe physical simulation

According to the materials of the part and cutter, taking the cutting parameter into account, this paper calculates the cutting-force and cutting-journey using experience formula, calculates the distortion quantity considering the actual instance when machining, calculates the cutter´s distortion quantity when heated according to the cutting-heat produced during cutting process, analyzes the cutter´s distortion when forced after predigesting the mechanics model, then forecasts the machining error brought out by the displacement change between cutter and part. Based on Windows and Visual C++, the system is developed by C++ language, and instructs Matlab to draw curve according to the result calculated by the mathematical model in order to manifest the simulation results in the pattern of data and curve.