Machining of titanium alloy grade 5 (Ti-6Al-4V) by using PVD coated cutting tool insert

Shanker, V. Guru; Sai, A. Shiva Subrahmanya; Surappa, S.; Reddy, Chakradhar; Saketh, R. Naga

doi:10.1063/5.0036135

Cited by 3 publications

(1 citation statement)

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“…The BUE formation in α+β alloy reduces the effectiveness of tool coating [15]. However, a TiAlN [17] coated carbide tool is 2-3 times better than an uncoated carbide tool for hybrid machining [16] and with PVD coated carbide tool, lower temperatures and good surface quality are observed [47]. The cutting temperature and high pressure at the tool-chip interface, built-up edge (BUE) formation [12] [17] and the chemical interaction between the titanium and the tool are the main reasons of the tool wear [3].…”

Section: An Overview Of Machining Of Titanium and Its Alloysmentioning

confidence: 99%

Overview of Machinability of Titanium Alloy (Ti6Al4V) and Selection of Machining Parameters

Gandreddi

Kromanis

Lungevičs

et al. 2023

Latvian Journal of Physics and Technical Sciences

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Machining of titanium alloy Ti6Al4V is a challenging task for the industry; however, there are some solutions to overcome these difficulties. One of those is optimizing the machining parameters. Machining of Ti6Al4V made by additive manufacturing is an emerging future and is even more difficult when comparing to standard Ti6Al4V alloy. There is lot of invention on Ti6AL4V 3D printed samples, but influence of machining post-printing is lacking. In additive manufacturing of Ti6Al4V alloy, it is necessary to make a finishing operation to improve the surface quality and to ensure precise geometry tolerances. During this process, it may affect the workpiece properties such as microhardness, microstructure, internal defect distribution, internal stresses. During printing there are lots of stresses created, heat treatment is done to normalize the parts. Machining (using milling machine) also causes internal stresses which can damage the surface and part itself. Optimisation of machining parameters and printing parameters can solve this issue. This study gives an overview of selection of machining parameters by considering all the previous relevant research.

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