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Parameter Optimization of Wire EDM-A Taguchi Approach


Affiliations
1 Dept. of Mechanical Engg., Sona College of Technology, Salem, India
2 Sethu Institute of Technology, Kariapatti, Anna University, Tamil Nadu, India
     

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The bronze-alumina (Al2O3) alloy is an Metal Matrix Composite (MMC) of interest in several applications like bearing sleeve, piston and cylinder liners etc:The reinforcement used in this MMC makes it difficult to machine using traditional technique. Wire-Electric Discharge Machine (WEDM) seems to be a viable option to machine. This paper presents an investigation on the optimization of machining parameters in WEDM of bronze-alumina MMC. The main objective is to find the optimum cutting parameters to achieve a low value of surface roughness and higher material removal rate (MRR). The cutting parameters considered in this experimental study are, pulse on time, pulse off time and wire feed rate. The settings of cutting parameter's were determined by using Taguchi experimental design method. An L9 orthogonal array was chosen. Signal to Noise ratio (S/N) and analysis of variance (ANOVA) was used to analyze the effect of the parameters on surface roughness and material removal rmte to identify the optimum cutting parameters. The contribution of each cutting parameter's towards the surface roughness and material removal rate is also identified. The study shows that the Taguchi method is suitable to solve the stated problem with minimum number of trials.
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  • Parameter Optimization of Wire EDM-A Taguchi Approach

Abstract Views: 156  |  PDF Views: 0

Authors

T. Jesudas
Dept. of Mechanical Engg., Sona College of Technology, Salem, India
R. M. Arunachalam
Dept. of Mechanical Engg., Sona College of Technology, Salem, India
K. S. Jayakumar
Dept. of Mechanical Engg., Sona College of Technology, Salem, India
R. Thiraviam
Sethu Institute of Technology, Kariapatti, Anna University, Tamil Nadu, India

Abstract


The bronze-alumina (Al2O3) alloy is an Metal Matrix Composite (MMC) of interest in several applications like bearing sleeve, piston and cylinder liners etc:The reinforcement used in this MMC makes it difficult to machine using traditional technique. Wire-Electric Discharge Machine (WEDM) seems to be a viable option to machine. This paper presents an investigation on the optimization of machining parameters in WEDM of bronze-alumina MMC. The main objective is to find the optimum cutting parameters to achieve a low value of surface roughness and higher material removal rate (MRR). The cutting parameters considered in this experimental study are, pulse on time, pulse off time and wire feed rate. The settings of cutting parameter's were determined by using Taguchi experimental design method. An L9 orthogonal array was chosen. Signal to Noise ratio (S/N) and analysis of variance (ANOVA) was used to analyze the effect of the parameters on surface roughness and material removal rmte to identify the optimum cutting parameters. The contribution of each cutting parameter's towards the surface roughness and material removal rate is also identified. The study shows that the Taguchi method is suitable to solve the stated problem with minimum number of trials.