4AL-AHMARI A M A. Predictive Machinability Models for a Selected Hard Material in Turning Operations [ J ]. Journal of Material Processing Technology, 2007,190 : 305 - 311.
5NAI,BANT M ,GOKKAYA H,TOKTA Si ,et al. The Exper- imental Investigation of the Effects of Uncoated, PVD-and CVI)-coated Cemented Carbide Inserts and Cutting Parame- ters on Surface Roughness in CNC Turning and Its Predi~'- tion Using Artificial Neural Networks [ J ]. Robotics and Computer-Integrated Manufacturing, 2009,25 ( 1 ) : 211 - 223.
