Abstract

Surface roughness affects directly on machining process qualities. The surface roughness model is particularly necessary to the optimization of the cutting parameters in an end milling operation on CNC milling machine. The paper analyses the affection of the variation of the cutting conditions (speed of spindle rotation, feed per tooth, axial depth of cut) on the suface roughness. The validity of the surface roughness model was proved through cutting experiments and the model was used to predict the machined surface roughness from the information of the cutting parameters.