Abstract
The Technique for order preference by similarity to ideal solution (TOPSIS) method of optimization is used to analyze the process parameters of the micro-Electrical discharge machining (micro-EDM) of an AISI 304 steel with multi-performance characteristics. The Taguchi method of experimental design L27 is performed to obtain the optimal parameters for inputs, including feed rate, current, pulse on time, and gap voltage. Several output responses, such as the material removal rate, electrode wear rate, overcut, taper angle, and circularity at entry and exit points, are analyzed for the optimal conditions. Among all the investigated parameters, feed rate exerts a greater influence on the hole quality. ANOVA is employed to identify the contribution of each experiment. The optimal level of parameter setting is maintained at a feed rate of 4 μm/s, a current of 10 A, a pulse on time of 10 μs, and a gap voltage of 10 V. Scanning electron microscope analysis is conducted to examine the hole quality. The experimental results indicate that the optimal level of the process parameter setting over the overall performance of the micro-EDM is improved through TOPSIS.
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R. Manivannan is currently completing his Ph.D. in the Department of Mechanical Engineering at Anna University, Chennai. He received his B.E. degree in Mechanical Engineering from Saveetha Engineering College and M.E degree in Manufacturing Systems Management at Anna University, India. His research interests include manufacturing and optimization technique.
M. Pradeep Kumar completed his Ph.D. in Mechanical Engineering in the Department of Mechanical Engineering at Anna University Chennai, India. He works as an associate professor in the same department of the same university. He has almost 15 years of teaching and research experience. He has published many research papers in international and national Journals. His research interests include cryogenic machining and the application of FEM in machining and micromachining.
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Manivannan, R., Kumar, M.P. Multi-response optimization of Micro-EDM process parameters on AISI304 steel using TOPSIS. J Mech Sci Technol 30, 137–144 (2016). https://doi.org/10.1007/s12206-015-1217-4
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DOI: https://doi.org/10.1007/s12206-015-1217-4