IMPROVING THE EFFICIENCY OF THE GRINDING PROCESS BY CHANGING THE STRUCTURAL CHARACTERISTICS OF THE ABRASIVE TOOL

Based on experimental and analytical studies, it was found that the efficiency of the grinding process depends on the grain composition and the content of the main fraction in it. Grain compositions of abrasive materials produced by domestic manufacturers are regulated by standards and regulations. According to them, each grain composition of abrasives consists, as a rule, of five fractions. Statistical processing and analysis of more than 80 different grain compositions of abrasive materials allowed us to establish regularities in measuring the percentage of individual fractions from the granulometric index. To test this hypothesis, a number of grinding tools with different grain compositions of abrasive materials were tested. The results of comparative tests of grinding wheels showed that the development and application of a single integral indicator of grain compositions of abrasive materials in the form of a granulometric index provides an objective and reliable assessment of their multidirectional influence on the performance of the grinding process