Study on Improvement of Tribological Surface Properties Through Micro-Texturing

在2000年，以下两种主题的研究，直到一个微型放电机器的介绍。主题一：研究了微压痕坑和微电解坑对中碳钢表面润滑特性和点蚀耐久性的影响。主题二：移动三维纳米纹理磁盘表面对磁盘存储器中浮动磁头滑动轴承的薄膜气体润滑特性的影响。主题1的实验工作揭示了微坑的纹理化改善了接触表面之间的油膜形成，这成功地导致了针对点蚀的坚韧表面^<（1.3.4和5）>对于主题2，进行计算机模拟以找到使飞行高度波动最小化的纳米凸块的合理布置^<（2）>在引入微放电机器之后，研究小组努力获得在平面和平面上加工微坑和微槽的技能， ...更多信息 在2001年，使用带有放电微坑或微槽的钢表面研究了以下三个主题。主题三：微坑对中碳钢表面滚滑接触润滑及点蚀耐久性之影响。主题4：微坑对重载滑动接触下平行圆推力轴承卡滞特性的影响。主题五：微沟槽对旋转磁碟上滑动垫磨合与卡滞特性之影响。实验结果表明，当接触带内凹坑的总体积增加时，应该预期更大的效果。研究结果表明，微坑的存在可以增强表面的抗咬合能力，并且在不显著减少固体面积的情况下，增加微坑的总体积可以增强表面的抗咬合能力。主题5的结果表明，当脊区域的面积相对于槽区域变小时，可以实现更好的磨合特性，并且当通过以小间距布置窄槽来保持脊区域的面积足够大时，可以实现更强的耐咬合性。少

In 2000 the following two kinds of themes were studied until a micro electro-discharge machine was introduced. Theme 1 : effects of micro indentation pits and micro electrolyzed pits on lubrication characteristics and on pitting durability of medium carbon steel surfaces in rolling-sliding contact. Theme 2 : effects of moving three dimensional nano-textured disc surfaces on thin film gas lubrication characteristics for flylng head slider bearings in magnetic disc storage. The experimental work for Theme 1 revealed that texturing of micro pits improved the oil film creation between the surfaces in contact which successfully led to tough surfaces against pitting^<(1.3.4 and 5)> for Theme 2, computer simulation was carried out to find reasonable arrangement of nano-bumps which minimized the flying height fluctuations^<(2)> After introduction of the micro electro-discharge machine, the research group strived to be endowed with skills to machine micro pits and micro grooves on both flat and … More cylindrical surfaces so as to prepare test pieces for succeeding studies.In 2001 the following three themes were studied using steel surfaces with electro-discharged micro pits or micro grooves. Theme 3 : effects of micro pits on lubrication and pitting durability of medium carbon steel surfaces in rolling-sliding contact. Theme 4 : effects of micro pits on seizure characteristics of a parallel circular thrust bearing in heavily loaded sliding contact. Theme 5 : effects of micro grooves on run-in and seizure characteristics of slider pads on a rotating disc. The experimental results for Theme 3 show that the larger effects should be expected when the total volume of the pits within the contact band is increased. The results for Theme 4 show that the micro pits can lead the surfaces to be strong against seizure, and that the effect is strengthened when the total volume of the pits is increased without notable reduction in the solid area. The results for Theme 5 reveal that better run-in characteristics can be realized when the area of the ridge region becomes small relative to the groove region, and that stronger endurance against seizure can be realized when the area of the ridge region is held large enough by arranging narrow grooves in small pitch. Less