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Title: Assessment of machinability of inconel 718: A comparative study of CVD & PVD coated tools
Authors: Yadav, Rajiv Kumar
Chatterjee, Suman
Abhishek, Kumar
Mahapatra, Siba Sankar
Keywords: Flank wear;Fuzzy inference system;Imperialistic competitive algorithm;Material removal rate;Surface roughness
Issue Date: Oct-2019
Publisher: NISCAIR-CSIR, India
Abstract: This paper highlights the parametric appraisal in turning of inconel 718 using fuzzy inference system coupled with imperialistic competitive algorithm (ICA) approach. The machining variables such as spindle speed, feed rate and depth of cut have been taken into consideration to analyse their effect on evaluation characteristics viz. material removal rate (MRR), flank wear and surface roughness. Fuzzy inference system (FIS) has been used to integrate aforementioned evaluation characteristics into a single response known as multi performance characteristic index (MPCI) to address the issue of impreciseness and uncertainties involved in decision making. Mathematical models have also been proposed for MPCI using non-linear regression analysis which acts as an objective function in ICA. ICA is new meta-heuristic based on social political theory which is used to obtain global optimal parametric combination in machining of Inconel 718. The results indicate that single layer (single coating: AlTiN) physical vapour deposition (PVD) coated tool is more efficient as compared to multi-layered (four coatings: TiN, TiCN, Al2O3 and TiN) chemical vapour deposition (CVD) coated tool.
Page(s): 281-297
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.26(5&6) [October & December 2019]

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