Feedrate Optimization for Ball-end milling of Sculptured Surfaces using Fuzzy Logic Controller
Optimization of cutting parameters important in precision machining in regards to efficiency and surface integrity of the machined part. Usually productivity and precision in machining is limited by the forces emanating from the cutting process. Due to the inherent varying nature of the workpiece in terms of geometry and material composition, the peak cutting forces vary from point to point during machining process. In order to increase productivity without compromising on machining accuracy, it is important to control these cutting forces. In this paper a fuzzy logic control algorithm is developed that can be applied in the control of peak cutting forces in milling of spherical surfaces using ball end mills. The controller can adaptively vary the feedrate to maintain allowable cutting force on the tool. This control algorithm is implemented in a computer numerical control (CNC) machine. It has been demonstrated that the controller can provide stable machining and improve the performance of the CNC milling process by varying feedrate.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1074807Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2166
 Ikua B.W, Hisataka Takana, Fumio Obata, Satoshi Sakamoto, "Prediction of cutting forces and machining error in ball end milling of curved surfaces-1: Theoretical analysis," Journal of International Societies for Precision Engineering and Nanotechnology, vol. 25, pp. 266-273, 2001.
 A. Lamikiz, L.N. Lo-pez de Lacalle, J.A. Sanchez, M.A. Salgado, "Cutting force estimation in sculptured surface milling," International Journal of Machine Tools and Manufacture, vol. 44, pp. 1511-1526, 2004.
 Cus F., Zuperl U., Kiker E., Milfelner M., "Adaptive controller design for feedrate maximization of machining process," Journal of Achievements in Materials and Manufacturing Engineering, vol. 17, pp. 237-239, 2006.
 Kim G.M, Cho P.J, Chu C.N, "Cutting force prediction of sculptured surface ball-end milling using z-map," International Journal of Machine Tools and Manufacture, vol. 40, pp. 277-291, 2000.
 Ming L., Tet Y., Saeed R., Zhixin H., "Fuzzy control of spindle power in end milling processes," International Journal of Machine Tools and Manufacture, vol. 42, p. 14871496, 2002.
 G. Boothroyd, Fundamentals of metal machinining and machine tools. McGraw-Hill Kogakusha, Ltd, 1975.