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Residual Stress and Bending Fatigue Strength of Case-Carburized Thin-Rimmed Spur Gears With Asymmetric Web Arrangement

[+] Author Affiliations
Kouitsu Miyachika, Takao Koide

Tottori University, Tottori, Tottori, Japan

Wei-Dong Xue

Yokohama National University, Yokohama, Kanagawa, Japan

Hidefumi Mada

Tottori Metal Heat Treatment Cooperative Association, Yonago, Tottori, Japan

Kengo Nojima

Industrial Research Institute of Tottori Prefecture, Yonago, Tottori, Japan

Satoshi Oda

Fukuyama University, Fukuyama, Hiroshima

Hideaki Katanuma

Denki Kogyo Company Ltd., Gakuen, Aiko, Kanagawa, Japan

Paper No. DETC2007-34047, pp. 845-854; 10 pages
doi:10.1115/DETC2007-34047
From:
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 7: 10th International Power Transmission and Gearing Conference
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4808-6 | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME

abstract

This paper presents a study on effects of carburized parts on residual stress and bending fatigue strength of case-carburized thin-rimmed spur gears with asymmetric web arrangement. A heat conduction analysis and an elastic-plastic stress analysis for the case-carburizing process of thin-rimmed spur gears with asymmetric web arrangement were carried out by the three-dimensional finite-element method (3D-FEM), and then residual stresses were obtained. Effects of the case depth, the carburized part and the rim thickness on the residual stress of case-carburized thin-rimmed spur gears were determined. Bending fatigue tests were carried out for case-carburized thin-rimmed spur gears with asymmetric web arrangement, and S-N curves and bending fatigue limit loads were obtained. Effects of the case-depth, the carburized part and the rim thickness on the bending fatigue strength of the case-carburized thin-rimmed spur gear with asymmetric web arrangement were determined.

Copyright © 2007 by ASME

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