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Pitting Life Experiments of Gear Material using a Damaged Area Analysis Method  

Joo, Jin-Wook (Department of Mechanical Engineering, Pusan National Univ.)
Lee, Byung-Wook (Department of Mechanical Engineering, Pusan National Univ.)
Moon, Seok-Man (Department of Mechanical Engineering, Pusan National Univ.)
Kim, Tae-Wan (Department of Mechanical Engineering, PuKyong National Univ.)
Cho, Yong-Joo (Department of Mechanical Engineering, Pusan National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.27, no.11, 2010 , pp. 92-97 More about this Journal
Abstract
The object of this study is to investigate the definite method for pitting damaged surfaces. Pitting is a sort of fatigue damages and it is made by a repetitive load. For a judgment between damages or not, sensing vibrations of test equipment is simple. However, it is not only difficult to observe a growth of pitting but also impossible to detect the juncture of initial pitting. Therefore, a method for the pitting damaged area measuring technique was effectively implemented by Two Roller Machine. The change of surface damaged area was measured by an optical microscope in regular time and calculated by the use of dark and bright ratio of test specimens' pictures taken by optical microscope. In conclusion, S - N Curves gained by Failure rate - Cycle graph was led and the curves are able to be chosen as occasion demands for a failure area percentage.
Keywords
Pitting; Micro Pitting; Pitting Experiment; Gear Pitting Life; Pitting Area; Gear Failure; S-N Curve;
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  • Reference
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