| Surface topography is an important part of components’ surface quality. Componentswith different surface topography characteristics, will lead to the difference in friction andwear properties, coordination quality, fatigue strength, anti-corrosion, contact stiffness andanti-adhesion.Component with anticipating surface topography characteristics can improve its workingperformance. In some cases, special anticipating surface topography is needed to make thecomponent possess special working performance. However, changing discipline of surfacetopography during processing must be obtained firstly to get the anticipating surfacetopography. It is important to study the changing discipline of surface topographycharacteristics in the machining process so as to obtain the special surface topography andimprove the working performance of the components.In this paper, electrochemical polishing (ECP) and electrochemical mechanical finishing(ECMF) are used to machine the specimen’s surface. the surface characteristics of height,width and shape features are used to study the characteristics of micro-surface geometryfeatures, also the altitude density function and autocorrelation function are used to study themicro-surface geometry statistics characteristics. The results showed that ECP and ECMF cansignificantly change the surface topography of components, different processing methods anddifferent processing factors result in different surface topography, and the changing rule of thesurface topography characteristic parameter is ales different. The changing rules of differentsurface topography characteristic parameter have been studied systemically and a new way toobtain anticipating geometry topography is provided in this paper. |
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