Chapter 33. The Role of Thermal Shock on Wear Resistance of Selected Ceramic Cutting Tool Materials

  1. John B. Wachtman Jr
  1. S. F. Wayne and
  2. S. T. Buljan

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310502.ch33

12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10

12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10

How to Cite

Wayne, S. F. and Buljan, S. T. (1988) The Role of Thermal Shock on Wear Resistance of Selected Ceramic Cutting Tool Materials, in 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310502.ch33

Author Information

  1. GTE Laboratories Incorporated Waltham, MA 02254

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470374818

Online ISBN: 9780470310502

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Keywords:

  • stress;
  • resistance;
  • ceramics;
  • mechanical;
  • thermal expansion coefficient

Summary

The introduction of Si3N4- and Al2O3-based tools has greatly increased the speed of metal removal and the productivity of metal cutting operations. High speed machining elevates the temperature at the tool/workpiece interface and subjects the tool to considerably higher stress, resulting from increased mechanical forces and thermal gradients. Under these circumstances, the thermal shock resistance of tool materials would be expected to play a more important role in determining the tool life and should be more carefully considered in both material design and applications. It was of interest to devise a series of controlled thermal shock machining tests and to assess the wear of ceramic-based cutting tools. The resistance of ceramic-based cutting tool materials to wear or fracture under these conditions is discussed in terms of thermal shock parameters.