FIELD: working of hard earth rocks. SUBSTANCE: composite cutting body for abrasive working of hard materials, possibly concrete includes diamond particles with grain size less than grain size of composite cutting bodies embedded into matrix containing, mainly metallic binder material. Diamond particles have grain size in range 50 - 300 micrometers. Each composite cutting body is agglomerated and sintered at individually shaping it of mixture of diamond particles and binder material. Grain size of composite cutting body is in range 400 - 1200 micrometers. EFFECT: elimination of rejected products, enhanced cutting capability. 2 cl, 4 dwg
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