An application of fuzzy logic with grey relational technique in grinding process using nano Al₂O₃ grinding wheel on Ti-6Al-4V alloy
by Deborah Serenade Stephen; Prabhu Sethuramalingam
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 23, No. 1, 2021

Abstract: This investigation is focused on studying grinding of titanium alloys (Ti-6Al-4V) by using nano Al₂O₃ grinding wheel as an alternative approach to existing methods of grinding. To evaluate optimum conditions of grinding process output, a full factorial technique has been used. L27 orthogonal array was chosen to arrive at an optimised permutation of grinding depth of cut, speed and feed. Consequently, the optimal combination of parameters was tested and results were compared with those of a conventional grinding wheel. The results show superior surface finish on Ti alloy when ground with nano Al₂O₃ grinding wheel. Confirmatory tests assured that a great improvement in grey relational grade with fuzzy logic, from 0.551 to 0.749 was observed, which substantiates the progress in the performance at best possible levels of nano grinding parameters. Improvement of 21.47% in surface finish of the ground material using combinations of fuzzy grey relational analysis have been achieved.

Online publication date: Mon, 01-Feb-2021

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