Chapter 12. High Speed Circular Microhole Milling Method for the Determination of Residual Stresses in Coatings and Composites

  1. Todd Jessen and
  2. Ersan Ustundag
  1. Michael Buchmann and
  2. Rainer Gadow

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294628.ch12

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

How to Cite

Buchmann, M. and Gadow, R. (2008) High Speed Circular Microhole Milling Method for the Determination of Residual Stresses in Coatings and Composites, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294628.ch12

Author Information

  1. University of Stuttgart Institute for Manufacturing Technologies of Ceramic Components and Composites Allmandring 5b D-70569 Stuttgart, GERMANY

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375686

Online ISBN: 9780470294628

SEARCH

Keywords:

  • ceramic rotors;
  • X-ray computed tomography;
  • tomographic imaging technology;
  • spatial resolution;
  • metrology

Summary

Residual stresses are an important issue for the manufacturing and operation performance of thermally coated layer composites. The quality of the composites with regard to the residual stresses, microstructure and mechanical properties can widely be varied by tuning the spray parameters like simultaneous process cooling, substrate preheating or energy supply. The correlation between composite quality and spray parameters has to be known to optimize the spraying process and finally the operation behaviour of the composites. A key requirement for an optimized and repeatable manufacturing process as well as for reproducible high quality composites is the possibility to measure the residual stresses with reliable measurement tools. This study describes measurement features of the high speed circular microhole drilling method, the FEM-calculation of calibration curves and reproducibility and reliability investigations of the measured residual stress results.