Optimization of Machining Processes: Past - Present - Future

Machining is an important field in mechanical engineering which requires optimization. However, it is not enough to apply the optimization but the most important is to identify a reliable optimum. One of the intent of the paper is to demonstrate how to increase the reliability of machining process optimization. The paper covers optimization of machining processes which includes identification of machining process, optimization criteria, Integrated Machinability Testing Concept – IMT Concept as well as optimization examples applied to milling, turning, hobbing and broaching. In addition the paper presents some non-conventional methods such as exhaustive search optimization, simulated annealing optimization, tabu search and bio-inspired optimization methods are presented. A statement that the decision maker in optimization has to have professional skill and training as an engineer or operation analyst is given.