A ‘micro’ process planning system based on integer programming for prismatic parts produced on Horizontal Machining Centers

An automated process planning system is developed for manufacturing prismatic parts on a Horizontal Machining Center. The goal is to demonstrate the feasibility of using the integer (0-1) programming technique to determine the optimal sequence of machining operations. The final process sequence reflects constraints on tool life. Precedence relationships due to fixturing and/or process requirements are also taken into account. Decision logic for selection of cutting tools and calculation of necessary machining parameters are also developed. Process plans for test workpieces are produced and the effectiveness of the system demonstrated.