Title: Modelling and optimisation of duplex turning of titanium alloy (grade 5) using Taguchi methodology-response surface methodology

Authors: Sunil Kumar; Ravindra Nath Yadav; Raghuvir Kumar

Addresses: Department of Mechanical Engineering, Babu Banarasi Das University, Lucknow, 226028, India ' Department of Mechanical Engineering, BBD National Institute of Technology and Management, Lucknow, 226028, India ' Department of Mechanical Engineering, BN College of Engineering and Technology, Lucknow, 226201, India

Abstract: Duplex turning is an innovative idea of metal cutting that shows potential to improve the productivity with better quality. In duplex turning, two cutting tools are used as parallel to each other and perpendicular to the workpiece axes for getting the desired surface quality in single pass turning operation. The use of two cutting tools makes the process very complex which requires optimal parameters to enhance the productivity with quality. In present work, the parameters are optimised by applying a Taguchi methodology (TM) and optimised parameters are utilised as central values for further analysis. The central data are used to collect the experimental results for response surface methodology (RSM) for modelling and optimisation of control parameters such as cutting speed, feed rate, primary depth-of-cut (DOC) and secondary-DOC to optimise responses as primary-cutting force, secondary-cutting force and average surface roughness using TM-RSM techniques. The result shows the significant improvement in the responses with TM-RSM approach as primary-cutting force = 18.67%, secondary-cutting force = 15.80% and surface finish = 13.30% than the TM optimised values.

Keywords: response surface methodology; RSM; surface roughness; Taguchi; turning; modelling: optimisation; analysis of variance; ANOVA; cutting force.

DOI: 10.1504/IJISE.2020.108549

International Journal of Industrial and Systems Engineering, 2020 Vol.35 No.4, pp.463 - 481

Received: 06 Apr 2018
Accepted: 25 Dec 2018
Published online: 17 Jul 2020 *

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