An integrated approach to tolerance synthesis, process selection and machining parameter optimization problems

Abstract

Tolerance synthesis, process selection and machining parameter optimization have been recognized as key issues to ensure product quality and reduce production cost. Although the three issues are closely interrelated, they are rarely addressed simultaneously. This often leads to inconsistent and conflicting decisions. This paper reports an integrated approach for simultaneously addressing these issues subject to their common constraints and considers both tangible and intangible cost criteria. Most commonly used machining processes such as milling, turning, drilling, reaming, boring and grinding have been taken into account. Particular attention has also been paid to multiple quality characteristics. Two example problems, one requiring rotational machining, the other involving planar machining, are solved to demonstrate the application of the proposed approach.