The response of the high strength Ti-10V-2Fe-3Al beta titanium alloy to laser assisted cutting

Rashid, R. A. Rahman, Bermingham, M. J., Sun, S., Wang, G. and Dargusch, M. S. (2013) The response of the high strength Ti-10V-2Fe-3Al beta titanium alloy to laser assisted cutting. Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology, 37 2: 461-472. doi:10.1016/j.precisioneng.2012.12.002


Author Rashid, R. A. Rahman
Bermingham, M. J.
Sun, S.
Wang, G.
Dargusch, M. S.
Title The response of the high strength Ti-10V-2Fe-3Al beta titanium alloy to laser assisted cutting
Journal name Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology   Check publisher's open access policy
ISSN 0141-6359
1873-2372
Publication date 2013-04
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.precisioneng.2012.12.002
Volume 37
Issue 2
Start page 461
End page 472
Total pages 12
Place of publication Philadelphia, PA, United States
Publisher Elsevier
Collection year 2014
Language eng
Abstract Metal cutting is a process that uses tools to create new surfaces by imparting intense shear stresses and high strain rates on the work material. Consequently, the mechanical properties of the work material directly influence its machinability, and high strength materials such as titanium are notoriously difficult to cut. Laser assisted machining (LAM) is a promising solution to reduce the cutting pressures when machining difficult-to-cut materials. The method involves using a laser beam to locally heat and reduce the flow stress of the material ahead of an advancing cutting tool, making the metal shearing process easier. To date there is limited, if any, published literature on using the technology to improve the machinability of metastable β-titanium alloys. It remains unclear whether these materials will respond to laser assisted machining since many are specifically designed to exhibit high temperature strength. This paper compares the conventional and laser assisted machining method for the high strength Ti-10V-2Fe-3Al β-titanium alloy over a wide range of cutting parameters. The effect of the laser beam on the cutting force, cutting temperature and chip formation is discussed. The effectiveness of the LAM process in reducing the cutting pressure of Ti-10V-2Fe-3Al alloy is also compared against other alloys including commercial-purity titanium and Ti-6Al-4V.
Keyword Titanium alloys
Machining
Laser processing
Shearing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 19 December 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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