OPTIMIZATION OF PROCESS PARAMETERS IN THE HOLE SINKING ELECTRO DISCHARGE MICROMACHINING USING GRA-PCA

Authors

  • Rajesh Kr Porwal Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad, India
  • Vinod Yadava Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad, India
  • Ramkumar J Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, India

Keywords:

Hole Sinking Electro Discharge Micro Machining (HS-EDMM), Taguchi Methodology (TM), Multi-Objective Optimization (MOO), GRA, PCA

Abstract

The paper describes the multi-objective optimization of hole sinking electro discharge micromachining (HS-EDMM) process considering material removal rate (MRR), tool wear rate (TWR), hole taper (Ta) and machined hole overcut (MHO) as objectives simultaneously. Optimal combination of process parameters is determined using grey relational analysis that employs grey relational grade as performance indexes. The principal component analysis is applied to evaluate the weighting values corresponding to each performance characteristics so that their relative importance can be properly and objectively described. Optimal combination of the process parameters for the multi-performance characteristics of the hole sinking micro electro discharge machining has been found as gap voltage 90V, capacitance of capacitor 10nF

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Published

2013-06-01

How to Cite

[1]
Rajesh Kr Porwal, Vinod Yadava, and Ramkumar J, “OPTIMIZATION OF PROCESS PARAMETERS IN THE HOLE SINKING ELECTRO DISCHARGE MICROMACHINING USING GRA-PCA”, JME, vol. 8, no. 3, pp. 096–104, Jun. 2013.