DYNAMIC OPTIMIZATION OF MULTIPASS MILLING OPERATIONS VIA GEOMETRIC-PROGRAMMING

This paper outlines the development of an optimization strategy to det ermine the optimum cutting parameters for multipass milling operations like plain milling and face milling. The developed strategy is based on the ''maximum production rate'' criterion and incorporates eight te chnological constraints. The optimum number of passes is determined vi a dynamic programming, and the optimal values of the cutting condition s are found based on the objective function developed for the typified criterion by using a non-linear programming technique called ''geomet ric programming''. This paper also underlies the importance of using o ptimization strategies rather than handbook recommendations as well as pointing out the superiority of the multipass over the single-pass op timization approach. (C) 1998 Elsevier Science Ltd. All rights reserve d.