Int. J. of Industrial and Systems Engineering   »   2014 Vol.18, No.1

 

 

Title: Application of response surface methodology and genetic algorithm for optimisation of electro-discharge diamond face grinding of tungsten carbide-cobalt composite

 

Authors: Ravindra Nath Yadav; Vinod Yadava; G.K. Singh

 

Addresses:
Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004, India
Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004, India
Department of Mechanical Engineering, Galgotias University, Greater Noida-201308, India

 

Abstract: The objective of this paper is to optimise the electrical discharge diamond face grinding (EDDFG) process. The experiments were performed on a self developed face grinding setup, which is attached with vertical column of EDM machine. The experiments were conducted on tungsten carbide-cobalt (WC-Co) composite workpiece considering the simultaneous effect of wheel speed, pulse current, pulse on-time and duty factor on material removal rate (MRR) and average surface roughness (Ra). The experiments were conducted according to the central composite rotatable design (CCRD) and developed a mathematical model to predict the relation between input-output parameters using response surface methodology (RSM). The developed RSM model is coupled with non-dominated sorting genetic algorithm (NSGA-II) to optimise the process parameters. Finally optimal solution obtained from Pareto front is presented and compared with experimental results.

 

Keywords: electro-discharge machining; EDM; electro-discharge diamond grinding; EDDG; genetic algorithms; GAs; optimisation; response surface methodology; RSM; tungsten carbide-cobalt composites; tungsten carbide; cobalt; electrical discharge machining; wheel speed; pulse current; pulse on-time; material removal rate; MRR; average surface roughness; surface quality; central composite rotatable design; CCRD; mathematical modelling; NSGA-II.

 

DOI: 10.1504/IJISE.2014.064342

 

Int. J. of Industrial and Systems Engineering, 2014 Vol.18, No.1, pp.76 - 94

 

Available online: 14 Aug 2014

 

 

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