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.
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