Evaluation of Turning Performance Characteristics Using Grey Relational Grade Analysis

Abstract

The present work is to identify the effect of turning process parameters on the performance measures during wet turning of AA7075. The work material is predominantly used for aircraft fittings, gears and shafts, missile parts, worm gears, and aerospace/defense applications. A number of experiments were conducted based on Taguchi's mixed L9 orthogonal array (OA) using coated tungsten carbide tools. The multiple responses of material removal rate (MRR) and Surface Roughness characteristics (Ra, Rq and Rz) were estimated and analyzed using Taguchi based Grey analysis in order to find the optimal combination of cutting parameters.