Optimization of WEDM Process Parameters of Hybrid Composites (A413 / B₄C / Fly Ash) Using Grey Relational Analysis

Abstract:

This paper presents an optimum method to find the significant parameters affecting Wire Electrical Discharge machining (WEDM) performance using Grey relational analysis. A413 Aluminium Alloy reinforced with 20 microns of Boron Carbide and 75 microns of Fly Ash, hybrid composites was fabricated using stir casting technique. Experiments have been conducted with the process parameters like pulse on time, pulse off time, wire feed, gap voltage and weight percentage reinforcement with three different levels. The influence of each parameter on the responses material removal rate and surface roughness is established using analysis of variances (ANOVA). The optimal machining-parameters setting for minimum surface roughness and maximum material removal rate was obtained by applying Grey relational analysis.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 658-662
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.658
• Online since: July 2014
• Authors: J. Milton Peter*, J. Udaya Prakash, T.V. Moorthy
• Keywords: ANOVA, Grey Relational Analysis, Hybrid Composite, Wire EDM

References

[1] G. Rajyalakshmi, Dr.P. Venkata Ramaiah, in: Simulation, Modelling and Optimization of Process parameters of Wire EDM using Taguchi – Grey Relational Analysis, IJAIR, (2012).

[2] Manish Vishwakarma, Vishal Parashar, V.K. Khare, in: Advancement in Electric Discharge Machining on metal matrix composite materials in recent: A Review, International Journal of Scientific and Research Publications, Volume 2, Issue 3, (March 2012).

[3] B. Shivapragash, K. Chandrasekaran, C. Parthasarathy, M. Samuel, in: Multiple Response Optimizations in Drilling Using Taguchi and Grey Relational Analysis, International Journal of Modern Engineering Research, Vol. 3, Issue. 2, (March-April. 2013) pp-765-768.

[4] T.P.D. Rajan, R.M. Pillai, B.C. Pai, K.G. Satyanarayana, P.K. Rohatgi, in: Fabrication and characterisation of Al–7Si–0. 35Mg/fly ash metal matrix composites processed by different stir casting routes, Composites Science and Technology 67 (2007).

DOI: 10.1016/j.compscitech.2007.03.028

[5] J. Udaya Prakash, T.V. Moorthy, J. Milton Peter, in: Experimental Investigations on Machinability of Aluminium Alloy (A413) / Flyash / B4C Hybrid Composites using Wire EDM, Procedia Engineering, Volume 64, (2013) Pages 1344–1353.

DOI: 10.1016/j.proeng.2013.09.216

[6] M.K. Surappa, in: Aluminium matrix composites: challenges and opportunities. Sadhana, Vol. 28, Parts 1 & 2, p.319–334. (2003).

DOI: 10.1007/bf02717141

[7] Pujari Srinivasa Rao, Dr. Koona Ramji, Prof. Beela Satyanarayana, in: Prediction of Material removal rate for Aluminum BIS-24345 Alloy in wire-cut EDM. International Journal of Engineering Science and Technology, Vol. 2, pp.7729-7739. (2010).

[8] Chorng-Jyh Tzenga, Yu-Hsin Linb, Yung-Kuang Yanga, Ming-Chang Jeng, in: Optimization of turning operations with multiple performance characteristics using the Taguchi method and Grey relational analysis, journal of materials processing technology 209 (2009).

DOI: 10.1016/j.jmatprotec.2008.06.046

[9] T.M. Chenthil Jegan, M. Dev, D. Ravindran, in: Determination of Electro Discharge Machining Parameters in AISI202 Stainless Steel using Grey relational analysis, Procedia Engineering 38 (2012), 4005-4012.

DOI: 10.1016/j.proeng.2012.06.458