ESTIMATION THE INFLUENCE OF TOOL GEOMETRY ON THE SURFACE QUALITY AND TOOL WEAR

Abstract

This study introduced to estimation the influence of cutting tool geometry on the surface roughness and tool wear all have an essential effect on the achievement of desired product quality and acceptable cost. There are seven various parameter (figure 1) such as relief angle (α), rake angle (γ), side cutting edge angle (φ), end cutting edge angle (φ1), nose radius(rε), end relief angle (α1) and back rake angle (γ1) that are known to have a large impact on surface quality and tool wear, thus tool shape have a decided effect upon the cutting efficiency of the tool. The results of experiment allow considering the evaluation of each parameter of tool geometry on the surface roughness and tool wear, and then obtain the optimum shape of turning cutting tool. The goal of this work is to identify a relationship between surface quality of cast iron and tool wear, turning process with tool geometry of high speed steel HSS, then develop tool geometry which is termed the multiple regression model and to evaluate prediction ability of model. Application of new progressive rates of correct shape lathe tools, it is very benefit when using expensive and accurate machines. An attempt was made to minimize the number of experimental run and increase the reliability of experimental results. MINITAB software [2] which is used in this paper can be used for evaluation, with few experimental run and [3, 4, 5].