- 學位論文
傳動元件材料磨潤特性之研究
A study on the tribological characteristics for the materials of drive elements
摘要
目前傳動元件被大量運用於高精密工作母機的移動平台上，是高精密工業重要的關鍵組件；而為提升相關產業競爭力，開發高性能傳動元件有其必要性。並需要擁有高精度與高壽命，表面粗糙度之改善為重要課題。因此本實驗主要探討傳動元件常用鋼材的粗糙度對磨潤特性的影響及傳動元件常用鋼材在不同潤滑情況下的磨潤特性探討。藉由往復摩擦試驗機暨量測系統，動態量測經噴射拋光後不同表面粗糙度之傳動元件試片的乾摩擦性質，並同時量測表面形貌及進行光學照片觀察。 進而研究傳動元件素材的磨潤性質，故於乾摩擦及基礎油潤滑條件下，以鋼球對圓棒狀試片進行磨潤實驗。經由磨耗表面的形貌分析及光學照片觀察，發覺原始素材的表面硬度對於低摩擦及抗磨耗均已具有明顯的影響，中等以上黏度的潤滑油品較具有抗磨耗成效。
並列摘要
The quality and the accuracy are very important for the high accurate mechanical engineering. The actuator always significantly influences the energy loss and the accuracy. Therefore, the drive elements play an important role when it was used in the actuator of the machine. Moreover, the high performance drive elements are attracted recently due to the upgrade of manufacture. The effects of surface roughness on the tribological properties are very important for the drive element in the future. Therefore, this study is based on the above statements to investigate the tribological properties for the standard drive element specimens after the injection polishing by the reciprocating friction tester. The continuous variations of electrical contact resistance and friction coefficient were measured under dry friction process. Moreover, the photographs and the profiles of wear track were observed and measured. The experimental results showed that the saturated value of the surface roughness is about 0.2~0.3μm when the injection time is 30min. Besides, the steel ball and the cylinder specimens were used to investigate the tribological properties of the original drive element materials under the dry friction and the oil lubrication. The experimental results showed that the surface hardness of the original drive element materials significantly influence the friction and the wear. Moreover, it showed wear-resistance for the MN and HN oil.