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The Basic Relationship Between Machining Induced Residual Stress Profiles and Fatigue Life

[+] Author Affiliations
Y. B. Guo, A. W. Warren

The University of Alabama, Tuscaloosa, AL

Paper No. MSEC_ICMP2008-72229, pp. 103-107; 5 pages
doi:10.1115/MSEC_ICMP2008-72229
From:
  • ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing
  • ASME 2008 International Manufacturing Science and Engineering Conference, Volume 2
  • Evanston, Illinois, USA, October 7–10, 2008
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4852-4 | eISBN: 978-0-7918-3836-6
  • Copyright © 2008 by ASME

abstract

The characteristics of residual stress (RS) profiles and their effects on rolling contact fatigue life for precision turned and ground surfaces with a white layer (WL) are very controversial. The key findings of this study are: (a) The basic RS profiles by a sharp tool can be fundamentally changed by a turned WL but not a ground WL; (b) The hook shaped RS profile of a turned surface may have about 40% more fatigue life than a ground one; (c) The white layer may reduce fatigue life as much as 7–8 times despite the deep compressive RS in the subsurface.

Copyright © 2008 by ASME

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