OPTIMIZATION OF PROCESS PARAMETERS DURING DRY TURNING OF AISI O-1 DIE STEELWITH CVD COATED TOOL FOR BETTER SURFACE FINISH AND IMPROVED PRODUCTIVITY

Abstract

Surface roughness and Material Removal Rate are the main quality functions in high speed turning of high carbon cold work steel in dry conditions. This research presents the optimization of surface roughness & material removal rate in dry turning of AISI O-1 DIE steel. CVD coated carbide inserts were used for machining of AISI O-1 to study effects of process parameters. These models can be effectively used to predict the surface roughness (Ra) & material removal rate of the work piece. The big challenge of the Micro, small& medium industries in India for achieving high quality products with increased productivity. This paper presents work of an investigation of turning process parameters on AISI O-1 material, for optimization of surface roughness only and surface roughness as well as material removal rate. The experiment is carried out by considering three controllable input variables namely spindle speed (N), feed rate (ƒ), and depth of cut (ap). The design of experiments is carried out by Response Surface Methodology (Central Composite Rotatable Method) and optimization of surface roughness as well as influence of turning process parameters is carried out by ANOVA. Keywords: Dry Turning, CVD Coated Tool, Die Steel, Surface Roughness, RSM, CCRD, ANOVA, MRR, AISI O-1