Title: Machining of aluminium 7075-T6 alloy under dry environment using DLC coated tool

Authors: Kshitij Pandey; Nidhi Mishra

Addresses: Department of Mechanical Engineering, Alamuri Ratnamala Institute of Engineering and Technology, Thane, Maharashtra, India ' Department of Mechanical Engineering, Alamuri Ratnamala Institute of Engineering and Technology, Thane, Maharashtra, India

Abstract: Excellent strength-to-weight fraction of aluminium alloys (mainly series 2XXX, 6XXX and 7XXX) makes them perfect for use in aircraft industries. Among the aluminium alloys, 7075 is used for manufacturing of shafts, gears and machine fittings. The present study include the comparative analysis of DLC coated tungsten carbide (WC) insert and uncoated WC insert during the machining of AA 7075-T6 under dry environment. T6 stands for a specific heat treatment provided to 7075 alloy resulting in enhanced mechanical properties of 7075-T6 alloy compared to conventional 7075 alloy. The performance of both inserts is compared in respect of cutting force, tool-tip temperature and wear morphology of tool.

Keywords: aluminium 7075-T6; heat treatment; DLC coated carbide inserts.

DOI: 10.1504/IJMMM.2024.143662

International Journal of Machining and Machinability of Materials, 2024 Vol.26 No.4, pp.332 - 343

Received: 10 Feb 2024
Accepted: 13 Apr 2024
Published online: 03 Jan 2025 *

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