Surface texturing has become a potential method to obtain a low friction coefficient under dry/lubricated conditions for different mechanical product surfaces. The mechanism of friction and wear reduction from a micro-texture on the surface of cemented carbide cutting tools was investigated by dry cutting a titanium alloy. Three kinds of micro-textures, namely, line, sinusoidal and rhombic grooves, with different area occupancy rates were produced by a laser on the cemented carbide surface. Experiments and finite element simulation of ABAQUS were used to investigate the tribological characteristics of micro-textured cemented carbide. The results indicated that the line-textured cemented carbide with an area occupancy rate of 10% showed a low friction coefficient of 0.076, which is approximately 34% of the non-textured sample. Few adhesives appeared on the textured surface, while a large number of adhesives were attached to the smooth surface after 30 min of dry friction between the cemented carbide and the titanium alloy balls. Moreover, among the three textures, the line-groove texture has the smallest friction coefficient and a good anti-wear effect. The results show that the existence of a groove texture can effectively reserve the wear debris, reduce the bond wear and weaken the furrow effect.

中文翻译：

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表面激光织构对硬质合金材料摩擦学性能影响的研究

对于不同的机械产品表面，表面纹理已成为在干燥/润滑条件下获得低摩擦系数的潜在方法。通过对钛合金进行干切削，研究了硬质合金刀具表面微织构减少摩擦磨损的机理。激光在硬质合金表面上产生线状、正弦状和菱形凹槽三种不同面积占有率的微观纹理。利用ABAQUS的实验和有限元模拟研究了微织构硬质合金的摩擦学特性。结果表明，面积占有率为 10% 的线织构硬质合金表现出 0.076 的低摩擦系数，约为非织构试样的 34%。硬质合金与钛合金球干摩擦30分钟后，纹理表面几乎没有粘合剂出现，而大量粘合剂附着在光滑表面上。而且，在三种纹理中，线槽纹理摩擦系数最小，抗磨效果好。结果表明，沟槽纹理的存在可以有效地保留磨屑，减少粘结磨损，减弱沟槽效应。