Research Of Grinding Wheel Surface Topography With Height And Spatial Parameters And Design Of The Relevant Evaluation Software

The topography of a grinding wheel surface has a direct influence onthe grinding process as well as the surface quality of the product produced by theprocess. Therefore, in order to predict and control the grinding process and quality ofthe following products preferably, it is necessary to do characterization research ofthe topography so that a comprehensive and in-depth understanding of the grindingwheel surface used can be achieved. However, because of the complexity of thegrinding wheel surface topography, there is no existing such a set of thoroughevaluation method and evaluation parameter system that suitable for grinding wheelsurface.In order to do the characterization research and so as to build theparameter evaluation system for the grinding wheel surface topography, this papertake use of the parameters used for3-D evaluation in the international standardISO25178-2for the characterization research of the grinding wheel surface. Thispaper mainly focuses on how to characterize amplitude and spatial features ongrinding wheel surface by height and spatial parameters in the standard. The mainresearches are as follows:(1) The general amplitude features on the measured grinding wheel topographyare analyzed through the statistical histogram of height distribution as well as thevalue and meaning of each height parameter of the grinding wheel surface. Based onthe above study a model of the grinding wheel surface is build and then therelationship between the height parameters and grains’ features are studied bycontrolling variable method based on the model.(2) Surface texture features on grinding wheels surface with controllable grainsarrangement are studied by spatial parameters. Firstly, meaning and calculationmethod by areal autocorrelation function and areal power spectrum density functionof the spatial parameters are discussed. And then the relationship between Str (textureaspect ratio) and the uniformity of grain’s controllable arrangement, Sal (fastest decayauto-correlation length) and grains’ size and the density of distribution, as well as the relationship between Std (surface texture direction) and the direction of thearrangement are analyzed.(3) A software that can be used for evaluation of grinding wheel surfacetopography is developed based on related algorithms of each process and MicrosoftVisual C++6.0platform.