The simulation of cutting force of free-form surface machining with ball-end milling cutter

Based on the previous researches and according to the milling characteristics of ball-end milling cutter, the cutting force model is established. Using empirical formula, the feed rate of NC codes of machining free-form surface is optimized under constraint of nearly constant cutting force, and so as to decrease the fluctuation of cutting force. Thus, the machining quality and efficiency of part are improved and the service life of cutting tool is prolonged. This paper develops a prototype system under constraint of nearly constant cutting force. And an example is given to verify the effectiveness of the method. This paper lays a good foundation for the development of software module of cutting parameter optimization related to free-form surface machining.