Title: Effect of MWCNT-based water soluble oil on cutting forces and surface roughness with tool wear in end milling of Ti-6Al-4V alloy

Authors: Nazma Sultana; A.T. Shams; Prianka B. Zaman; N.R. Dhar

Addresses: Department of Industrial and Production Engineering, Faculty of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh ' Department of Industrial and Production Engineering, Faculty of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh ' Department of Industrial and Production Engineering, Faculty of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh ' Department of Industrial and Production Engineering, Faculty of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh

Abstract: Investigating the cooling and lubrication effects of MWCNTs-based nanofluids with surfactants in reducing cutting force and surface roughness compared to dry and wet is the main focus of this study. Besides this, searching out the optimal settings of process parameters including cutting speed, feed rate, depth of cut, and cutting environment in milling Ti-6Al-4V alloy is another prime objective. Box-Behnken design (BBD)-based response surface methodology was employed for experimental design. To predict the chosen responses, quadratic models were developed. Analysis of variance (ANOVA) results showed that the cutting environment has the highest significance, with a variation in cutting force and roughness of about 76.5% and 49.9%, respectively. Both responses were lowered significantly in nanoMQL over wet. Optimisation using the composite desirability approach results that 32 m/min cutting speed, 22 mm/min table feed, 0.75 mm depth of cut, and NanoMQL were the optimal solution within the selected boundary constraints.

Keywords: Ti-6Al-4V; nanofluid; minimum quantity lubrication; MQL; response surface method; composite desirability approach.

DOI: 10.1504/IJNM.2023.136565

International Journal of Nanomanufacturing, 2023 Vol.18 No.3/4, pp.137 - 159

Received: 07 Nov 2021
Accepted: 16 Jan 2023
Published online: 07 Feb 2024 *

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