Paper Title:
Time Series Analysis for the Mechanical Lapping of Single Crystal Diamond Cutting Tools
  Abstract

In order to avoid the stochastic damage of micro cleavage on cutting edge, a brittle-ductile transition lapping mechanism is proposed for the mechanical lapping of single crystal diamond cutting tools to direct the tools lapping. As expected, the critical depths of cut for brittle-ductile transition in different orientations and on different crystal planes are calculated. According to the theoretical results, the actual dynamic depth of cut is controlled within the critical depth of cut, which ensures that the tool lapping is carried out in ductile regime and the changes of cutting edge radius characterize with some specific time laws in lapping. Therefore, the time series and nonlinear least square methods are used to analyze the changing laws of cutting edge radius. As a result, a coupled model to build a bridge between the cutting edge radius changes and lapping time is developed. In terms of this developed model, a required cutting edge radius restricts a tool’s lapping time. Above all, the cutting edge radius is known in advance and has no needs measuring. So the production efficiency of diamond cutting tools is improved and its production cost is reduced accordingly.

  Info
Periodical
Key Engineering Materials (Volumes 291-292)
Edited by
Yury M. Baron, Jun'ichi Tamaki and Tsunemoto Kuriyagawa
Pages
331-336
DOI
10.4028/www.scientific.net/KEM.291-292.331
Citation
W. J. Zong, D. Li, H.X. Wang, T. Sun, K. Cheng, M. J. Chen, "Time Series Analysis for the Mechanical Lapping of Single Crystal Diamond Cutting Tools", Key Engineering Materials, Vols. 291-292, pp. 331-336, 2005
Online since
August 2005
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Price
$32.00
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