CUTTING PLATE FROM HARD ALLOY AND CUTTING PLATE MANUFACTURE METHOD Russian patent published in 1998 - IPC

FIELD: metallurgy. SUBSTANCE: cutting plate is made from hard alloy of increased strength and plastic deformation resistance. Alloy contains carbide and/or carbonitride phases of cubic symmetry in binding phase on the basis of Co and/or Ni and having surface zone enriched in binding phase. Binding phase content is 3.5-12% by weight. Binding phase content in zone below binding phase enriched zone is 0.85-1 of that in inner part of plate. Content of phases of cubic symmetry is substantially constant and is equal to that in inner part of plate. EFFECT: increased efficiency and improved quality of cutting plate. 6 cl, 3 dwg