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Effect of Different Tool Electrodes (Wire) of WEDM Process of Inconel 718

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Recent Advances in Mechanical Infrastructure

Abstract

In the present era of industrialization, the use of materials like Inconel 718 which is nickel–chromium superalloy is increased due to the use in various areas like the aerospace industry, automobile industry, medical industry, and chemical industry. Inconel 718 is a worn and corrosion-resistant, high strength superalloy that exhibits temperature-resistant properties even at very high/elevated temperatures. In this present study, we have adopted wire electrical discharge machining (WEDM) for machining Inconel 718. As it is high strength material, conventional machining finds it difficult to machine due to which we have adopted a non-conventional machining method. For our investigation in the present study, molybdenum and brass as two different wire electrodes have been selected based on their advantages to observe their effect in WEDM for surface analysis. For the study, L9 orthogonal array was employed, which took into account three parameters at three levels for both wire electrodes. To notice the outcome and significance of input factors like discharge current, pulse-on time (Ton), and pulse-off time (Toff) on the output parameters like material removal rate (MRR) and surface roughness (SR), analysis of variance (ANOVA) has been used for analysis. Whereas the Taguchi optimization method is limited to optimize a single objective at a time, the TOPSIS method was used to consider both criteria together.

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Acknowledgements

The authors would like to thank ORSP, PDPU for sponsoring the research project in the SRP scheme via project number ORSP/R&D/SRP/2019-20/1371/3.

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Correspondence to Jay Vora .

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Chaudhari, R. et al. (2022). Effect of Different Tool Electrodes (Wire) of WEDM Process of Inconel 718. In: Parwani, A.K., Ramkumar, P., Abhishek, K., Yadav, S.K. (eds) Recent Advances in Mechanical Infrastructure . Lecture Notes in Intelligent Transportation and Infrastructure. Springer, Singapore. https://doi.org/10.1007/978-981-16-7660-4_28

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  • DOI: https://doi.org/10.1007/978-981-16-7660-4_28

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  • Print ISBN: 978-981-16-7659-8

  • Online ISBN: 978-981-16-7660-4

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