Distribution characterization of geometry shape and size of abrasive grits with high quality in tight size band and exact pattern is crucial for modern tool manufacturer to make fine powder abrasive tool and other powder tools, but complex to be classified and evaluated accurately due to the lack of scientific method. In contrast to industrial methods with sieving mesh size or simplified projection criteria with circumscribed (inscribed or escribed) circle or rectangle, a set of new systemic criteria is developed and validated by measuring three representative grits samples in micron scale under 2D/3D microscopy platform. The features of micron abrasive grits under morphology classification include total four groups, six subgroups and eighteen sub-types in consideration of spatial geometry and statistical size distribution. For grinding performance analysis and simulation, it would be better to use a set of dominant volumetric geometries rather than use single simple geometry. Furthermore, the significance of abrasive grits geometries in grinding performance is discussed.

中文翻译：

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微米级典型超级磨料的形态分析和特性评估

在紧凑的尺寸带和精确的图案中高质量表征磨料的几何形状和尺寸的分布特征对于现代工具制造商制造细粉磨具和其他粉末工具至关重要，但由于缺乏耐磨损性而难以准确分类和评估科学的方法。与筛分筛孔大小或外接（内接或外接）圆形或矩形的简化投影标准的工业方法相反，通过在2D / 3D显微镜平台下以微米级测量三个代表性的砂砾样品，开发并验证了一套新的系统性标准。考虑到空间几何形状和统计尺寸分布，形态分类下的微米级磨料的特征包括总共四组，六个亚组和十八个亚型。对于磨削性能分析和模拟，最好使用一组主要的体积几何体，而不是使用单个简单的几何体。此外，还讨论了磨粒几何形状对磨削性能的重要性。