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Growing Science » Authors » J. Rana

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Sort articles by: Volume | Date | Most Rates | Most Views | Reviews | Alphabet
1.

Performance optimization in electro- discharge machining using a suitable multiresponse optimization technique Pages 283-294 Right click to download the paper Download PDF

Authors: I. Nayak, J. Rana, A. Parida

DOI: 10.5267/j.dsl.2016.12.002

Keywords: Multi response optimization techniques, MRR, TWR, SR, ANOVA technique

Abstract:
In the present research work, four different multi response optimization techniques, viz. multiple response signal-to-noise (MRSN) ratio, weighted signal-to-noise (WSN) ratio, Grey relational analysis (GRA) and VIKOR (VlseKriterijumska Optimizacija I Kompromisno Resenje in Serbian) methods have been used to optimize the electro-discharge machining (EDM) performance characteristics such as material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR) simultaneously. Experiments have been planned on a D2 steel specimen based on L9 orthogonal array. Experimental results are analyzed using the standard procedure. The optimum level combinations of input process parameters such as voltage, current, pulse-on-time and pulse-off-time, and percentage contributions of each process parameter using ANOVA technique have been determined. Different correlations have been developed between the various input process parameters and output performance characteristics. Finally, the optimum performances of these four methods are compared and the results show that WSN ratio method is the best multiresponse optimization technique for this process. From the analysis, it is also found that the current has the maximum effect on the overall performance of EDM operation as compared to other process parameters.
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Journal: DSL | Year: 2017 | Volume: 6 | Issue: 3 | Views: 356 | Reviews: 0

 
2.

Selection of a suitable multiresponse optimization technique for turning operation Pages 129-142 Right click to download the paper Download PDF

Authors: I. Nayak, J. Rana

DOI: 10.5267/j.dsl.2015.7.003

Keywords: GRA, MRSN, Multi response optimization techniques, VIKOR, WSN

Abstract:
The present work deals with the comparison of four multi response optimization methods, viz. multiple response signal-to-noise (MRSN) ratio, weighted signal-to-noise (WSN) ratio, Grey relational analysis (GRA), and VIKOR (VlseKriterijumska Optimizacija I Kompromisno Resenje in Serbian) methods taking a case study in turning mild steel specimen using HSS cutting tool. The various factors like cutting speed, feed rate, depth of cut and coolant flow rate are considered as the input process variables, while the material removal rate (MRR), surface roughness (SR) and specific energy consumption (SEC) are considered as various performance characteristics. One set of experimental data is analyzed using the standardized procedures. The optimization performances of these four methods are compared. The results show that MRSN ratio method proves to be the best optimization method. It is found that the feed rate has a highest impact on the overall performance as compared to other process parameters.
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Journal: DSL | Year: 2016 | Volume: 5 | Issue: 1 | Views: 379 | Reviews: 0

 

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