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 acertain surface finish. The model, which includes the effect of spindle speed, cutting feed rate and depth of cut, and any twovariable interactions, predicted the surface roughness values with an accuracy of about 12%.