Title: Analysis of high-speed CNC milling of Ti-6Al-4V by multi-objective crow optimisation and multi-objective PSO

Authors: Shubham Jain; Vishal Parashar

Addresses: Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal (M.P.), 462003, India ' Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal (M.P.), 462003, India

Abstract: Ti-6Al-4V is extensively utilised as a functionally advanced material in different fields. Poor mechanisation and absence of machining innovation are major issues in the application of Ti-6Al-4V. In this research, analysis of variance (ANOVA) and regression analysis have been used to make input-output relationships. The optimisation method was applied to get the maximum material removal rate (MRR) and minimum surface roughness (SR). These responses were optimised simultaneously and composed as a multi-objective optimisation issue. In multi-objective optimisation, the effects of both responses were taken by the grey correlation analysis (GRA) method. This multi-objective optimisation issue has been solved applying two metaheuristic algorithms, namely, the crow optimisation algorithm, and the particle swarm optimisation (PSO). The optimisation results show great concurrence with the response surface methodology (RSM) results. Atomic force microscopy (AFM) was also employed to visualise the impact of procedure parameters on the surface topography.

Keywords: high-speed CNC milling; crow optimisation algorithm; particle swarm optimisation; PSO; Ti-6Al-4V; atomic force microscopy.

DOI: 10.1504/IJMATEI.2022.124196

International Journal of Materials Engineering Innovation, 2022 Vol.13 No.2, pp.128 - 156

Received: 25 Jan 2021
Accepted: 25 Jun 2021
Published online: 18 Jul 2022 *

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