Journal article
Tool life and wear mechanisms in laser assisted milling Ti–6Al–4V
Wear, Vol.322-323, pp.151-163
2015
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.
Details
- Title
- Tool life and wear mechanisms in laser assisted milling Ti–6Al–4V
- Authors
- M J Bermingham (Author) - University of QueenslandW M Sim (Author) - Airbus Operations Ltd., United KingdomDamon Kent (Author) - University of QueenslandS Gardiner (Author) - Airbus Operations Ltd., United KingdomM S Dargusch (Author) - University of Queensland
- Publication details
- Wear, Vol.322-323, pp.151-163
- Publisher
- Elsevier BV
- Date published
- 2015
- DOI
- 10.1016/j.wear.2014.11.001
- ISSN
- 0043-1648
- Copyright note
- Copyright © 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99448886302621
- Output Type
- Journal article
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- Web Of Science research areas
- Engineering, Mechanical
- Materials Science, Multidisciplinary
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