Parametric investigation of laser-assisted machining of commercially pure titanium

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Title: Parametric investigation of laser-assisted machining of commercially pure titanium
Author(s): Sun, Shoujin; Harris, James G.; Brandt, Milan
Abstract: Turning of commercially pure (CP) titanium was carried out with the assistance of a laser beam. The effects of laser beam arrangement laser power, and cutting speed on the reduction of cutting forces was also examined. A 2.5 kW Nd:YAG laser was used for heating the workpiece. The laser beam was delivered by a 15 m long optical fiber and focused by an optical lens with a focal length of 200 mm. The relative position of the laser beam with the workpiece and tool was adjusted by changing the angle between work-piece axis, tool-beam distance on the surface of workpiece, and lens workpiece distance on chamber surface. The effect of laser power on the reduction of cutting forces was examined at the cutting speed of 20 m/min, with the distance between lens and workpiece of 196 mm, and beam incident angle with the workpiece axis of 40°. The result demonstrated that with increasing cutting speed in LAM, the interaction time between the laser beam and workpiece decreases and the temperature rise at cutting edge due to laser heating is lower.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne
Source: Advanced Engineering Materials, Vol. 10, no. 6 (Jun 2008), pp. 565-572
Publication year: 2008
Keyword(s): Commercially pure titanium; CP titanium; Lasers; Nd:YAG lasers; Machining; Titanium
Publisher: Wiley
ISSN: 1438-1656
Publisher URL: http://dx.doi.org/10.1002/adem.200700349
Additional information: The authors gratefully acknowledge the CAST Cooperative Research Centre for permission to publish this work and the financial support received under the project No. 3-01-290. The CAST Cooperative Research Centre was established and is supported under the Australian Government's Cooperative Research Centres Programme.
Peer reviewed