Fuzzy logic control of chip form during turning

Abstract Chips produced during lathe turning should be broken so as to prevent snarling and to enhance heat removal from the tool. At present, conservatively written part programs for computer numerically controlled lathes are fine tuned by a human machine operator to produce desirable chip length. K. W. Yee and coworkers have produced an acoustic emission chip form monitor. The use of such an acoustic emission sensor in a simulated chip length control system is described. In this paper a fuzzy logic controller is then substituted for the conventional linear controller.