轴承座的实体建模、网格划分、加载、求解及后处理

利用照相平版印刷术的金属表面织构化关键技术及其摩擦学特性研究

Tribological Properties for the Key T echnology of Metal Surface T exturing by Using Photolithography

随着纳米超精密加工技术的不断发展，出现了一种在金属表面上制成微/纳米表面图形,降低润滑状态下的机械零部件的摩擦力、提高耐磨性以及使用寿命等减少能源损失的尖端技术。这种技术作为绿色成长产业的核心技术,可提高传统机械零部件的附加价值,将发展成为国家技术发展的源泉技术。

本项目将利用照相平版印刷术和电化蚀刻术研究金属表面织构化的关键技术，并通过在不同摩擦副方式及试验条件下，对不同形状、大小、深度以及密度的纳米表面图形的摩擦试验，导出影响表面织构化的主要设计因子及表面织构化的摩擦学设计基准以及不同纳米表面图形几何学因素在滑动摩擦中的特性变化。本项目拟通过系统的试验以及Stribeck 曲线、摩擦系数地图等分析方法，分析纳米表面图形摩擦学应用的低摩擦机理等摩擦学行为，为表面织构化新技术的发展及其实际应用提供可靠的理论依据和关键技术,从而实现微/纳米表面图形的广泛应用。

照相平版印刷术;微米图型;电化蚀刻术;摩擦学

With the development of nano ultraprecise machining technique, a sophisticated technique of reducing energy loss appeared, which is making the micropatterning on metal surface to reduce the friction and to promote wear-resistance and prolong the service life of mechanical components under lubrication. As the key technology of green industry, it can improve the additional value of mechanical components and will become the key technology of the national technology development.

We study the key technology of metal surface texturing by using photolithography and electrochemical etching, and derive the main design factor and tribological properties of metal surface texturing under different shape，size and depth by using different friction pairs and test conditions. This study will analyze the mechanism of low friction for the tribological application of nanopatterning on metal surface with using Stribeck curve and friction coefficient map, which provides a reliable basis and key technology for the developing and. Hence the application of micropatterning is realized.

photolithography, micropattern, electrochemical etching, steel

在钢表面制作微米图型的技术研究本文主要采用了微机电系统(MEMS)关键技术的照相平版印刷术。通过电化蚀刻术进行了钢表面微米图型的制作以及不同蚀刻方法的基础研究。观察了在不同电化蚀刻时间和图型密度下,微米图型蚀刻深度和加工表面的变化规律,并分析了他们之间相关关系。结果表明,当改变电化蚀刻时间时,钢表面微米图型的面积

以及微米图型的蚀刻深度的变化具有一定的规律。电化蚀刻术在金属材料表面的微米图型加工中,具有微米图型清晰、表面质量好以及大量生产等优点。而且,在大部分高强度金属材料表面上可加工出不同形状、大小以及深度的微米图型。

照相平版印刷术;微米图型;电化蚀刻术;钢

T echnique Research of Making Micropatterning on Steel

Surface

REN Jing-ri1 , CHAE Y oung-hun2

(1.Department of Mechanical Engineering,Y anbian University, Y anji 133002, China;

2.Research institute of Tribology, Kyungpook National University, Taegu 702701, Korea)

Abstract: The key technique of micro-electromechanical systems (MEMS) using photolithography, through the electrochemical etching to make the micropatterning on surface of the steel and to study the different basic methods of etching . Observing the etch depth of micron-graphics and the variation of the processing surface under the different electro-chemical etching time and the graphics density and examining their relationship. The results indicate that the area of the steel surface micron-graphics and the depth of micron-graphics etching have a certain variation when changing the electro-chemical etching time.The electro-chemical etching technique has a clear micron-graphics，a good surface quality and an advantage of mass production under the processing of the micron graphics on the metal surface . Furthermore，it can process the different shape，size and depth micron-graphics in most of high-strength metallic materials surface.

Key words: photolithography, micropattern, electrochemical etching, steel

轴承座的实体建模、网格划分、加载、求解及后处理

具体步骤：

首先进入前处理(/PREP7)

1. 创建基座模型

生成长方体

Main Menu：Preprocessor>Modeling>Create>V olumes>Block>By Dimensions

输入x1=0,x2=3,y1=0,y2=1,z1=0,z2=3

平移并旋转工作平面

Utility Menu>WorkPlane>Offset WP by Increments

X,Y,Z Offsets 输入2.25,1.25,.75 点击Apply

XY，YZ，ZX Angles输入0，－90点击OK。

创建圆柱体

Main Menu：Preprocessor>Create>V olumes>Cylinder> Solid Cylinder

Radius输入0.75/2, Depth输入－1.5,点击OK。