Evaluation of cutting variables on surface roughness and chip formation in turning AISI 304L steel with coated carbide inserts

Abstract

This study involve the use of full factorial method to evaluate the effect of cutting variables on surface roughness and types of chip formation in turning of AISI 304L alloy steel with coated carbide insert under dry condition. The input variable used were cutting speed, feed rate and depth of cut. Minitab 17 was used to analyse the data. The analysis of variance shows that feed rate has the most significant effect on surface roughness with 79.86% and the relationship between feed rate and cutting speed at constant depth of cut shows that as feed rate increase for every cutting speed, the surface roughness increases. It was observed that the chips formed at different cutting conditions were continuous, helical, straight, and serated types