Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20534
Title: A mesoplasticitiy analysis of cutting friction in ultra-precision machining
Authors: Lee, WB 
Cheung, CF 
To, S 
Keywords: Crystallographic orientation
Cutting force
Friction
Mesoplasticity
Power spectrum analysis
Ultra-precision machining
Issue Date: 2003
Publisher: Elsevier
Source: Journal of materials processing technology, 2003, v. 140, no. 1-3 SPEC., p. 292-297 How to cite?
Journal: Journal of materials processing technology 
Abstract: The control and minimization of cutting force variation is of prime importance in obtaining a consistent surface finish and form accuracy of a machined workpiece in ultra-precision machining. However, most continuum theories do not take into account the effect of crystallographic anisotropy that causes variation in the shear plane at the grain level and hence of the cutting force. The periodicity of the fluctuation of cutting forces is found to be dependent on the frictional condition during cutting. However, investigation of the in situ relationships among the cutting friction, the crystallographic orientation of workpiece and the periodic fluctuation of cutting forces has received relatively little attention. In this paper, a mesoplasticity approach is proposed to access the crystallographic and frictional effect on the fluctuation of micro-cutting forces in diamond turning of crystalline materials. The predictions were able to explain the experimental results based on the power spectrum analysis of the cutting force variation. The research findings throw light on the possibility of an indirect in situ assessment of the frictional condition in ultra-precision machining.
URI: http://hdl.handle.net/10397/20534
ISSN: 0924-0136
EISSN: 1873-4774
DOI: 10.1016/S0924-0136(03)00752-0
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