Abstract
This contribution proposed a novel calculation method for the three-dimensional characteristics of worn grains on abrasive belts. The geometric parameters (height, normal, and curvature) of hollow-sphere abrasive grains were quantified by a combination of random sample consensus (RANSAC) plane fitting, coordinate conversion, and principal component analysis (PCA). The spatial as well as the frequency distribution of geometric characteristics were used to quantify the wear evolution of four representative morphology. In addition, the worn morphology of the hollow-sphere belts was divided into different stages through the variation of geometric parameters. A comprehensive experimental study of the geometric characteristics of abrasive grains with grinding performance showed that normal and curvature were strongly correlated with material removal rate and machined surface quality, respectively. Thus, the grinding performance intervals of the different worn belts can be evaluated by the geometric parameters of the abrasive grains.
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