Turning Parameter Optimization for Minimum Production Cost by Integer Programming

Optimal selection of cutting speed, feed rate, depth of cut, and the number of passes is important in machining operations due to significant influence of these parameters on machining quality and machining economics. It is an essential part of a computer integrated manufacturing system. In this paper, an optimization model based on minimum production cost for multi-pass turning operations is presented. Tool life, surface roughness, cutting force, cutting power as well as limits on cutting speed, feed rate, and depth of cut are incorporated in the model as constraints. Optimal solutions are found by an integer programming solution approach. A turning example is given for illustration. The model generates much lower unit production costs compared with the results from the literature and machining data handbook.