This paper deals with the fatigue performance of fabricated component. The plain fatigue and fatigue crack growth tests were performed. The rectangular bar specimens sectioned from the fabricated components after rolling, forming and cold spinning processes were prepared. Four-point bend fatigue tests of the specimens with as-fabricated surfaces were carried out at a stress ratio of 0.1 and a frequency of 20 Hz with a sinusoidal waveform. The crack growth behavior of specimens at various stages of fabricating process was also investigated. The fatigue test results indicated that surface morphology and surface defect induced by each stage of fabricating process strongly degraded the fatigue strength. The limited influence of fabricating process on crack growth behavior was noticed only in the threshold region. Fatigue strength and fatigue life were estimated based on fracture mechanics approach using the fatigue crack growth curve obtained and the surface defect depth observed on the fabricated surface. The estimated fatigue strength and the experimental results were in good agreement.
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ASME 2007 International Manufacturing Science and Engineering Conference
October 15–18, 2007
Atlanta, Georgia, USA
Conference Sponsors:
- Manufacturing Division
ISBN:
0-7918-4290-8
PROCEEDINGS PAPER
Estimation of Fatigue Strength of Fabricated Component Available to Purchase
Duangporn Ounpanich,
Duangporn Ounpanich
Nagaoka University of Technology, Nagaoka, Niigata, Japan
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Yoshiharu Mutoh,
Yoshiharu Mutoh
Nagaoka University of Technology, Nagaoka, Niigata, Japan
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Kenji Yoshii
Kenji Yoshii
Topy Industries, Ltd., Toyohashi, Japan
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Duangporn Ounpanich
Nagaoka University of Technology, Nagaoka, Niigata, Japan
Yoshiharu Mutoh
Nagaoka University of Technology, Nagaoka, Niigata, Japan
Kenji Yoshii
Topy Industries, Ltd., Toyohashi, Japan
Paper No:
MSEC2007-31058, pp. 465-472; 8 pages
Published Online:
March 24, 2009
Citation
Ounpanich, D, Mutoh, Y, & Yoshii, K. "Estimation of Fatigue Strength of Fabricated Component." Proceedings of the ASME 2007 International Manufacturing Science and Engineering Conference. ASME 2007 International Manufacturing Science and Engineering Conference. Atlanta, Georgia, USA. October 15–18, 2007. pp. 465-472. ASME. https://doi.org/10.1115/MSEC2007-31058
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