FIELD: abrasive working processes and tools, possibly production of abrasive tools, namely annular drills used for working hard materials such as sapphire, silicon and so on.
SUBSTANCE: method of making abrasive tool including base with mounting and working portions and abrasive containing matrix comprises steps of embedding abrasive grains into working portion of base before producing abrasive containing matrix. At wearing end part of abrasive-containing matrix, abrasive grains embedded into working portion of base begin to work.
EFFECT: enhanced strength and working efficiency of tool.
2 cl, 1 dwg, 1 ex
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