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Multi-Response Optimization of WEDM Process Using the VIKOR Method


Affiliations
1 SQC & OR Unit, Indian Statistical Institute, 203, B. T. Road, Kolkata, India
2 Dept. of Prod. Engg., Jadavpur University, Kolkata, India
     

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Researchers have attempted several approaches for determination of the process settings that can optimize the multiple performance measures (responses) of wire electrical discharge machining (WEDM) operations. The VIKOR method, applied so far for multi-response optimization of chemical processes, can overcome the limitations of the multi-response signal-to-noise (MRSN) ratio based approach. In this paper, the VIKOR method is modified to make it more generalized and a set of experimental data on multiple responses of WEDM process is analyzed using the modified VIKOR method. The results demonstrate that the optimal factor-level combination determined using the VIKOR method can lead to significantly better overall quality level than the MRSN ratio based approach.
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  • Multi-Response Optimization of WEDM Process Using the VIKOR Method

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Authors

Susanta Kumar Gauri
SQC & OR Unit, Indian Statistical Institute, 203, B. T. Road, Kolkata, India
Shankar Chakraborty
Dept. of Prod. Engg., Jadavpur University, Kolkata, India

Abstract


Researchers have attempted several approaches for determination of the process settings that can optimize the multiple performance measures (responses) of wire electrical discharge machining (WEDM) operations. The VIKOR method, applied so far for multi-response optimization of chemical processes, can overcome the limitations of the multi-response signal-to-noise (MRSN) ratio based approach. In this paper, the VIKOR method is modified to make it more generalized and a set of experimental data on multiple responses of WEDM process is analyzed using the modified VIKOR method. The results demonstrate that the optimal factor-level combination determined using the VIKOR method can lead to significantly better overall quality level than the MRSN ratio based approach.