Taguchi Method for Multi-Objective Optimization of Cutting Parameters in Turning Operations AA7129 Alloy Reinforced with B4C & TiC

Abstract

This paper will discuss parametric optimization of the turning process using the Taguchi method in order to improve the quality of manufactured goods, as well as engineering design development for studying variation Turning of Al7129 metal matrix reinforced with Titanium carbide (TiC) and Boron carbide (B4C) powder. Metal Matrix Composite with Carbide tool for carrying out experiment to optimize material removal rate and surface roughness. There are three machining parameters i.e., spindle speed, feed rate and depth of cut. Different experiments are done by varying one parameter and keeping other two fixed so that optimised value of each parameter can be obtained. In this project dry turning of Al7129 as a work piece and carbide insert tool. The range of cutting parameters are cutting speed (180, 350 and 500 m/min), feed rate (25, 80 and 125 mm/rev), depth of cut (0.2, 0.6 and 1 mm). Taguchi orthogonal array is designed with three levels of turning parameters with the help of software Minitab version 16. Taguchi method stresses the importance of studying the response variation using the signal to noise (S/N) ratio, resulting in minimization of quality characteristic variation due to uncontrolled parameters. It is predicted that Taguchi method is a good method for optimization of various machining parameters as it reduces number of experiments. A confirmatory test confirms the results, which indicate the optimum values of the input factors.