Abstract
In this paper, an experimental research on the influence of the biomimetic surface morphology on the bending fatigue resistance of gear is carried out. The biomimetic surface morphology was prepared on the gear surface by a 4.5-kW Nd:YAG pulsed laser. The results showed that the fatigue lives of all of the biomimetic gears were much longer than that of the as-received gear. The bending fatigue resistance was improved by the biomimetic surface morphology. The bending fatigue resistant mechanism of biomimetic gear is discussed.
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