An Experimental Study to Determine the Correlation Between Tool Wear and Residual Stresses Induced in Turning of Inconel 718

A.  Ginting; M.  Nouari; H.  Makich

doi:10.6180/jase.202409_27(9).0006

An Experimental Study to Determine the Correlation Between Tool Wear and Residual Stresses Induced in Turning of Inconel 718

A. Ginting¹This email address is being protected from spambots. You need JavaScript enabled to view it., M. Nouari², and H. Makich²

¹Laboratory of Machining Processes, Department of Mechanical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Jalan Almamater, J17.01.01, 20155 Medan, Indonesia

²University of Lorraine, LEM3 UMR CNRS 7329, Institute Mines-Telecom, GIP-InSIC, 27 rue d’Hellieule, 88100 Saint-Dié-des-Vosges, France

Received: June 26, 2023
Accepted: October 23, 2023
Publication Date: December 6, 2023

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202409_27(9).0006

Nickel-based superalloy Inconel 718 is widely used in the aerospace industry for applications requiring high temperature strength and high mechanical resistance. The difficulty of dislocation motion through the microstructure is responsible for its high yield strength. The main problems encountered when machining Inconel 718 are low material removal rate, short tool life and residual stress effects. An experimental investigation was carried out to determine the correlation between tool wear and residual stresses induced in turning of Inconel 718. A series of turning tests was performed without lubrication and K-Carbide grade was used as the insert material with various coatings composed of TiCN, Al₂O₃ and TiN. The cutting forces, surface finish, and tool wear are presented according to the effect of cutting conditions. This investigation allows to capture the effect of tool wear on the process induced residual stresses in the work material surface in hard machining.

Keywords: Residual stress, Surface finish, Turning, Tool wear

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