Analysis Of The Surface Texture Features With Multi-Scale Point Grinding

The surface morphology of the parts have a huge impact on the use Performance.The characteristics of the parts’ surface structure have a direct relationship with friction and wear properties.With the development of processing technology of the parts,the study of surface topography have been gradually valued by research scholars.They found that the special surface structure can produce good functional characteristics in use.Especially in recent years,the research about bionic surface micro structures slowly into the research field.Some theory that learned from the surface structural properties of plants and animals have been apply in the processing.These theory can produce a good functional characteristics,and these surfaces usually have a multi-scale properties.The machined surface morphology usually have multi-scale features.The machining marks with the remaining of roughing and finishing processing are all multi-scale surface texture.In this paper,the study of multi-scale point grinding surface texture provides a controlled processing idea which can be used to design the surface topography of parts.This paper provides a prediction method of point grinding surface morphology which is based on the single grain’s trajectory simulation.The simulation can predict the surface topography with grain distribution,then it can calculate the approximate roughness.The results can prove that the surface of parts can be trimed by controlling the processing parameters.Based on the experimental results and analysis,we analyzed the textural properties of multi-scales.The test specimens are processing by the technique that combined the planing and grinding texture.The surface can analog the multi-scale point grinding surface.Five comparative specimens are produced and the surface topography data is measured by roughness measuring instrument(TR300).The multi-scale point grinding surface texture characteristics are summarized according to the analysis of these data.Different specimen surface friction and wear properties are tested on the DTM reciprocating friction tester,and the friction and wear performance parameters are measured.Based on the data above,the impacts of the multi-scale point grinding surface texture characteristics that processed by different grain direction and grinding depth can be conclude.The completion of the work has a certain significance on multi-scale point grinding surface process control.This paper analyzes the effect of point grinding surface spikes removal on the surface topography parameters,this conclusion can make surface process control evidence-based.This paper also analyzes the tribological properties of the surface of the multi-scale point grinding rely on friction and wear test,this analysis provides a basis for multi-scale surface friction and wear characteristics with different textures.