COMPARATIVE PERFORMANCE ANALYSIS OF TEXTURED AND UN- TEXTURED TURNING INSERTS IN DRY MACHINE OF AL7075

Abstract

Surface texturing is an effective process for improving the tribological characteristics Surface roughness may be beneficial in a number of ways, including decreased friction and tool wear due to the reduced contact area and formation of micro pools of lubricant in textures.

In machining operations the tool shape material and cutting parameters must all be carefully chosen. Thesevariables can influence both the qualityof work piece and the tool wear during machining. Simple and textured (Parallel and perpendicular grooved ,dimple textured) Tungsten Carbide inserts were utilized for machining of Al-7075 in this study. L20 (5*4) Taguchi orthogonal array was used for experimental design. CMM and Surftonic surface meter was used to measure tool wear and surfaceroughness respectively. The efficiency of this strategy is demonstrated by the Pareto coefficient main effect plot, contour plot, and surface plots. The study found that among the five types of cutting inserts evaluated (untextured, Titanium coated, dimple textured, parallel groove textured, and perpendicular grooved textured), the parallel groove textured insert performed the best exhibitingthe lowest surface roughness and tool wear.