A case-study on the mechanism of flank wear during laser-assisted machining of a titanium alloy

Rashid, R, Palanisamy, S, Sun, S and Dargusch, M 2017, 'A case-study on the mechanism of flank wear during laser-assisted machining of a titanium alloy', International Journal of Machining and Machinability of Materials, vol. 19, no. 6, pp. 538-553.


Document type: Journal Article
Collection: Journal Articles

Title A case-study on the mechanism of flank wear during laser-assisted machining of a titanium alloy
Author(s) Rashid, R
Palanisamy, S
Sun, S
Dargusch, M
Year 2017
Journal name International Journal of Machining and Machinability of Materials
Volume number 19
Issue number 6
Start page 538
End page 553
Total pages 16
Publisher Inderscience Enterprises Ltd.
Abstract In recent years, researchers have been investigating various technologies including laser-assisted machining (LAM) to improve the machinability of titanium alloys which is considered to be one of the difficult-to-cut materials. The LAM process involves heating the titanium workpiece with a laser beam of sufficient power to soften the material before it engages with the cutting tool. Benefits of LAM include significant reduction in cutting forces as well as better surface finish. However, as diffusion wear is the most dominant tool wear mechanism associated when machining titanium alloys, the effect of the additional heat from laser preheating on the cutting tool life is not clearly understood. Therefore, this paper aims at investigating the tool life of an uncoated carbide tool during LAM of Ti-6Al-4V alloy, as well as identifying the principal flank wear mechanisms involved during the cutting process. It was found that the tool life was reduced by about 8% when machining the workpiece with laser preheating. Moreover, it was found that the carbon from the cutting tool diffused into the titanium built-up edge formed in the vicinity of the cutting zone from where it was carried out through the chips. This considerably weakened the cutting edge of the tool resulting in accelerated tool wear. Copyright © 2017 Inderscience Enterprises Ltd.
Subject Manufacturing Engineering not elsewhere classified
Keyword(s) Cutting forces
Diffusion wear
Flank wear
LAM
Laser-assisted machining
Ti-6Al-4V
Titanium
Tool life
Tool wear
DOI - identifier 10.1504/IJMMM.2017.088895
Copyright notice © 2017 Inderscience Enterprises Ltd.
ISSN 1748-5711
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Altmetric details:
Access Statistics: 19 Abstract Views  -  Detailed Statistics
Created: Tue, 23 Oct 2018, 16:00:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us