一、前言 随着磨削技术的发展,现在磨削不仅是作为传统的精加工工序而且也作为粗加工工序而在生产中得到广泛应用。作为磨削刀具的砂轮,其特性通常采用磨料、粒度、硬度、结合剂、组织等来表征。但在使用中往往发现用这些要素不足以说明其磨削性能。因此人们企图寻找某一些特征参数来表征砂轮的性能,如研究砂轮表面的地貌图,用数理统计方法研究砂 I. Introduction With the development of grinding technology, grinding is now widely used not only as a traditional finishing process but also as a roughing process in production. Grinding wheels, as grinding tools, are often characterized by abrasives, grain size, hardness, bond, texture, and the like. However, it is often found that the use of these elements is not enough to explain its grinding performance. Therefore, people try to find some characteristic parameters to characterize the wheel performance, such as the study of the surface morphology of the wheel surface, using mathematical statistics to study the sand