Multi-criteria optimization of cutting processes

Abstract Determination of the optimal values of the cutting process parameters is an important task in computerized machinability data systems. Usually these parameters have to be decided with respect to several criteria, taken simultaneously. This paper discusses a multi-criteria optimization model that considers three variables: cutting speed, feed and depth of cut; with respect to two criteria namely, minimum technological cost and maximum output of the cutting process. A worked example based on a face-milling cutting process is used to illustrate the approach. After logarithmic substitution has been carried out, the non-linear model is converted into linear form and solved using linear programming software.