Tool life and wear mechanisms in laser assisted milling Ti-6Al-4V

Bermingham, M. J., Sim, W. M., Kent, D., Gardiner, S. and Dargusch, M. S. (2015) Tool life and wear mechanisms in laser assisted milling Ti-6Al-4V. Wear, 322-323 151-163. doi:10.1016/j.wear.2014.11.001

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ346774_OA.pdf Full text (open access) application/pdf 5.52MB 0

Author Bermingham, M. J.
Sim, W. M.
Kent, D.
Gardiner, S.
Dargusch, M. S.
Title Tool life and wear mechanisms in laser assisted milling Ti-6Al-4V
Journal name Wear   Check publisher's open access policy
ISSN 0043-1648
1873-2577
Publication date 2015-01-15
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.wear.2014.11.001
Open Access Status
Volume 322-323
Start page 151
End page 163
Total pages 13
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2015
Language eng
Abstract Thermally assisted machining processes are gaining popularity among researchers and engineers as a method for improving the machinability of difficult-to-cut materials such as titanium. The process of artificially introducing heat to the cutting zone is reported to have many benefits; however, it remains unclear whether the process offers any tool life improvements during milling Ti–6Al–4V when compared to conventional milling processes. This paper compares the tool life during laser assisted milling, dry milling, milling with flood emulsion, milling with minimum quantity lubrication (MQL) and a hybrid laser+MQL process. It is found that conventional coolants offer superior tool life at the standard cutting speeds recommended by the tooling manufacturer, but at higher speeds the coolant deteriorates tool life due to thermal shock/fatigue. Despite this, laser assisted machining performed poorly and exacerbated thermally related tool wear mechanisms such as adhesion, diffusion and attrition. Hybrid laser+MQL substantially improved tool life by suppressing the thermal wear processes while also preventing thermal fatigue on the cutting tool.
Keyword Non-ferrous metals
Laser processing
Cutting tools
Wear testing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 15 Nov 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 5 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 7 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 09 Dec 2014, 00:22:59 EST by System User on behalf of School of Mechanical and Mining Engineering