Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74160
Title: An application of eddy current damping effect on single point diamond turning of titanium alloys
Authors: Yip, WS 
To, S 
Keywords: Eddy current damping effect
Machining Vibration
Single point diamond turning
Titanium alloys
Ultra-precision machining
Issue Date: 2017
Publisher: Institute of Physics Publishing
Source: Journal of physics. D, Applied physics, 2017, v. 50, no. 43, 435002, p. 2 How to cite?
Journal: Journal of physics. D, Applied physics 
Abstract: Titanium alloys Ti6Al4V (TC4) have been popularly applied in many industries. They have superior material properties including an excellent strength-to-weight ratio and corrosion resistance. However, they are regarded as difficult to cut materialsMergeCell serious tool wear, a high level of cutting vibration and low surface integrity are always involved in machining processes especially in ultra-precision machining (UPM). In this paper, a novel hybrid machining technology using an eddy current damping effect is firstly introduced in UPM to suppress machining vibration and improve the machining performance of titanium alloys. A magnetic field was superimposed on samples during single point diamond turning (SPDT) by exposing the samples in between two permanent magnets. When the titanium alloys were rotated within a magnetic field in the SPDT, an eddy current was generated through a stationary magnetic field inside the titanium alloys. An eddy current generated its own magnetic field with the opposite direction of the external magnetic field leading a repulsive force, compensating for the machining vibration induced by the turning process. The experimental results showed a remarkable improvement in cutting force variation, a significant reduction in adhesive tool wear and an extreme long chip formation in comparison to normal SPDT of titanium alloys, suggesting the enhancement of the machinability of titanium alloys using an eddy current damping effect. An eddy current damping effect was firstly introduced in the area of UPM to deliver the results of outstanding machining performance.
URI: http://hdl.handle.net/10397/74160
ISSN: 0022-3727
EISSN: 1361-6463
DOI: 10.1088/1361-6463/aa86fc
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