A Study of the Effects of Machining Parameters on the Surface Roughness in the End-Milling Process

A set of experiments designed to begin the characterization of surface quality for the end-milling process have been performed. The objective of this study is to develop a better understanding of the effects of spindle speed, cutting feed rate and depth of cut on the surface roughness and to build a multiple regression model. Such an understanding can provide insight into the problems of controlling the finish of machined surfaces when the process parameters are adjusted to obtain a certain surface finish. The model, which includes the effect of spindle speed, cutting feed rate and depth of cut, and any two-variable interactions, predicted the surface roughness values with an accuracy of about 12%. (C) 2007 Jordan Journal of Mechanical and Industrial Engineering. All rights reserved.