Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9191
Title: Analysis of surface generation in ultra-precision machining with a fast tool servo
Authors: Kwok, TC
Cheung, CF 
Kong, LB
To, S 
Lee, WB 
Keywords: Fast tool servo
Form error
Optical microstructures
Surface generation
Ultra-precision machining
Issue Date: 2010
Publisher: SAGE Publications
Source: Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture, 2010, v. 224, no. 9, p. 1351-1367 How to cite?
Journal: Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture 
Abstract: The fast tool servo (FTS) is one of the emerging ultra-precision machining technologies for the fabrication of high-quality optical microstructural surfaces. The diamond tool is fixed on the FTS, which is activated back and forth by a stacked type piezoelectric actuator. Optical microstructures with sub-micrometre form accuracy and nanometric surface finish can be fabricated without the need for any subsequent post processing. However, current understanding of the cutting mechanics and the factors affecting the surface generation in FTS machining is still far from complete. Although there has been some research work conducted to fill the research gaps with respect to FTS machining, most of the previous studies have been focused on the design of FTS for better performance and modelling characteristic of FTS actuators. The study of the process factors affecting surface generation in FTS machining has received little attention. As a result, this paper aims to analyse the effects of process parameters on surface generation in FTS machining. The factors being studied include spindle speed, feed rate, and depth of cut. A series of cutting experiments was carried out under various cutting conditions and the surface quality of the workpiece in terms of the form error and form defects were studied. Based on the results of the investigation, some recommendations for optimizing surface quality in the FTS machining process are discussed.
URI: http://hdl.handle.net/10397/9191
ISSN: 0954-4054
EISSN: 2041-2975
DOI: 10.1243/09544054JEM1843
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