Optimization of Process Parameters for Machining Marble using Abrasive Water Jet Machining through Multi Response Techniques

Abstract

Objective: Abrasive water jet machining is a most popular non-Traditional machining technique used for machining a wide range of hard-to-cut materials and complex geometric shapes. This technique is very much preferred for machining thermally sensitive materials. In the present study, Optimization of machining parameters such as water pressure, standoff distance (SOD) and quality of cut by were carried out by considering multiple performance characteristics such as high MRR, good surface finish (Ra) and minimum kerf Angle (Ka). Methods: The experiments were designed using Taguchi’s Design of experiments and carried out on Marble for each combination of (L9) orthogonal array. The optimal combinations of machining parameters were obtained using Taguchi Weightage method and principal component analysis. Findings: The analysis of the Taguchi method reveals that, MRR is significantly affected by stand-off distance while, surface roughness is affected by Abrasive flow rate. Improvements: Experimental results have shown that the output parameters have been improved using this approach.