Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/68924
Title: Spindle vibration influencing form error in ultra-precision diamond machining
Authors: Zhang, S 
To, S 
Keywords: Form error
Spindle vibration
Ultra-precision diamond machining
Issue Date: 2017
Publisher: SAGE Publications
Source: Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, 2017, v. 231, no. 17, p. 3144-3151 How to cite?
Journal: Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science 
Abstract: Ultra-precision diamond machining (UPDM) is widely used to manufacture high quality surface within sub-micrometric form error and nanometric surface roughness due to its high efficiency and low cost. However, in a complex UPDM process, many factors affect such sub-micrometric form error. Especially, spindle vibration produces a significant impact upon surface generation, not only influencing nanometric surface roughness, but also affecting sub-micrometric form error. In this study, a five-DOF dynamic model is established for spindle vibration in UPDM. The form error under spindle vibration is discussed with a surface generation model. The results show that (i) axial, radial, and coupled-tilting spindle vibration makes a great contribution to form error; (ii) the coupled-tilting frequencies are influenced by spindle speed; and (iii) the spindle vibration is reproduced at a machined surface to generate regular patterns consequently to cause form error, which is well identified with a focus on axial spindle vibration by face turning in UPDM. Its wavelength is linearly proportional to spindle speed and cutting radius distance, i.e. cutting speed. Significantly, the proposed models provide a possibility to predict surface roughness and form error under spindle vibration.
URI: http://hdl.handle.net/10397/68924
ISSN: 0954-4062
EISSN: 2041-2983
DOI: 10.1177/0954406216642799
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