Title: Optimisation of WEDM parameters in a gear cutting process using MOORA-based GA

Authors: Kasinath Das Mohapatra; Mantra Prasad Satpathy; Susanta Kumar Sahoo

Addresses: Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India

Abstract: The present paper deals with multi objective optimisation of wire EDM process parameters in a gear cutting process of titanium alloy grade 5 using MOORA-based GA methodology. The objective of the present research is to optimise the response parameters using hybrid technique for a gear tooth in order to obtain an optimised setting and to study the effect of process parameters on the output responses. In the present study, combii wire (brass with diffused zinc) of 0.25 mm diameter was machined with a 2 mm thickness of titanium plate in the shape of a gear. The process was carried out using full factorial design of experiments having 81 combinations. ANOVA table reveals that pulse on time and wire feed rate are the significant process parameters affecting the responses in WEDM process. The optimised setting obtained can be further used to produce high quality miniature gears.

Keywords: analysis of variance; ANOVA; brass; full factorial; gear; MOORA; titanium; pulse on time; wire EDM; wire feed rate.

DOI: 10.1504/IJPMB.2020.104234

International Journal of Process Management and Benchmarking, 2020 Vol.10 No.1, pp.99 - 131

Received: 13 Oct 2017
Accepted: 29 Dec 2017
Published online: 23 Dec 2019 *

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