1110 介在物分布を考慮したトラクションドライブ要素の面圧強度評価 : 第2報,人工微小欠陥を有するローラを用いた疲労試験(転がり接触,一般講演)

概要

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The rolling fatigue test using rollers with artificial small defects was carried out to obtain a criterion for rolling fatigue limit of traction-drive elements. The artificial small defect is a small hole machined on the side face of roller beneath the cylindrical surface by an electric discharge machining. The diameters of them are 120 to 160 μm. In the experiment, cracks occurred from the artificial defects. The obtained criterion was incorporated in the simulation of surface durability for traction-drive elements considering distribution of inclusions developed by authors. Then, the rolling fatigue test using rollers without artificial defects was carried out and the result was compared with the strength estimated by the simulation. The experimental strength is 13% higher than estimated one.
2010-04-18