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  • Multi-response optimisation for turning of magnesium alloy with untreated and cryogenic treated carbide inserts by grey relational analysis

  • N. Ravikumara,*, R. Vijayanb and R. Viswanathanc

  • aDepartment of Mechanical Engineering, Kongunadu College of Engineering and Technology, Trichy, India
    bDepartment of Mechanical Engineering, Government College of Engineering, Bargur, India
    cDepartment of Mechanical Engineering, AVS Engineering College, Salem, India

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This research work includes an extensive experimental analysis to explore the significance of cryogenic treated (CT) and untreated (UT) carbide cutting inserts on the machinability of AZ91D Mg alloy. A Taguchi L18 orthogonal array is employed to gather data for the analysis. Grey relational analysis (GRA) with both, equal weight (EqW) method along with entropy based weight method (EWM) are utilized to optimize the parameters of performance measures viz. surface roughness (Ra), cutting-tool temperature (T), cutting-force (Fz) and tool-wear (VB). CT cutting inserts yield better results than untreated one. The GRA results provided the optimal parameter combination for both types of weight-allocation methods as 80 m/min cutting speed, 0.5 mm depth of cut, 0.1 mm/rev feed for CT cutting insert. Confirmation test evidenced that, Ra, Fz, T and VB values are considerably reduced by 20%, 12%, 10% and 46% respectively while machining with cryogenic treated tool (CTT)


Keywords: Cryogenic, Carbide tool, Cutting force, Optimization, GRA, Turning, Magnesium

This Article

Correspondence to

  • N. Ravikumar

  • Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Trichy, India
    Tel : +91 9894160222

  • E-mail: suryakumar08@gmail.com