Chapter 4. Influence of Machining on Strength Properties of Turbine Materials

  1. William Smothers
  1. R. L. Allor,
  2. R. K. Govila and
  3. T. J. Whalen

Published Online: 26 MAR 2008

DOI: 10.1002/9780470318768.ch4

Proceedings of the 10th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 3, Issue 7/8

Proceedings of the 10th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 3, Issue 7/8

How to Cite

Allor, R. L., Govila, R. K. and Whalen, T. J. (1982) Influence of Machining on Strength Properties of Turbine Materials, in Proceedings of the 10th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 3, Issue 7/8 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470318768.ch4

Author Information

  1. Engineering and Research Staff, Ford Motor Co. Dearborn, MI 48121

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1982

ISBN Information

Print ISBN: 9780470373965

Online ISBN: 9780470318768

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Keywords:

  • evaluate;
  • billets;
  • fracture;
  • diamond;
  • modulus;
  • micrograph

Summary

An experimental study has been made to determine the influence of machining on fracture strength (four-point bend) of two potential turbine ceramics, namely sintered α-SiC and hot-pressed Si3N4. Machining aspects involve (a) types of cutting such as (i) use of a rotary table with a horizontal spindle, (ii) use of a rotary table with a vertical spindle, (iii) lengthwise, and (iv) transverse; (b) diamond wheel grit-size effects; and (c) downfeed effects in one machining pass. Several commercial machining sources were evaluated on the basis of material strength.