Controlling force based on radial fuzzy functions in high-speed machining processes

Abstract

This paper addresses the development of a new control strategy to regulate cutting force in a high-speed machining process. Fuzzy basis functions (FBF), on the basis of L.X.Wang's approach, serve as basement for designing and implementing adaptive fuzzy control system in an open computerized numerical control (CNC). The controller uses cutting force measured from a dynamometric platform, and mathematically processed by means of an integrated application, to perform real-time modification of feed rate. The integration process, design steps and results of applying the adaptive fuzzy-control system in actual high-speed machining operations corroborate the suitability of the proposed control strategy for real-time applications. Moreover, the results show a good transient response in the cutting force pattern despite the complexity of the mechanized part. © Springer-Verlag Berlin Heidelberg 2005.