FIELD: manufacture of metal-cutting tools. SUBSTANCE: abrasive grinding wheel is based on vitreous binding with abrasive powder obtained from melted aluminum oxide. Vitreous binding based on silicon oxide contains aluminum oxide, potassium oxide, lithium oxide, boron oxide and sodium oxide after roasting. Abrasive powder is essentially mixture of brown melted aluminum oxide and white melted aluminum oxide. Ingredients selected and their quantitative relation make it possible to preserve grinding wheel form and to increase intervals between next adjustment operations. EFFECT: enhanced strength and efficiency. 6 cl, 5 tbl, 3 ex
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