UHMWPE人造表面织构摩擦学研究

Study on tribological performance of UHMWPE texture surface

由于表面形貌的摩擦学效应,可以使用人造表面织构对摩擦表面进行表面改性,以提高表面的相关性能.本文使用采用用照相制版电铸方法制作模板,压铸成型了两种不同直径和分布规律的UHMWPE试样表面,通过和常规车加工试样表面的对比试验,研究了人造表面织构对UHMWPE摩擦学性能的影响.试验结果显示人造表面织构可以减小UHMWPE摩擦副的摩擦系数,相关仿真研究显示人造表面织构改善了UHMWPE摩擦副接触界面上的热传导.

Because of the tribological effect of surface topography, surface texture can be used to modify the friction surface, and to improve the related performance. The paper proposed a pattern plated by photoengraving, and stamped two kinds of UHMWPE surface with different diameter and distribution. The effect of surface texture to tribological performance of UHMWPE was studied by comparasion of sample with turning surface. Testing results show that surface texture can reduce the friction coefficient of UHMPWE. Related simulation shows that surface texture improve the heat conduction of contact interface of UHMWPE.