CUTTER OF POLYCRYSTALLINE DIAMOND WITH HIGH HEAT CONDUCTIVITY Russian patent published in 2014 - IPC E21B10/567 

FIELD: process engineering.

SUBSTANCE: set of inventions relates to cutters with block made of polycrystalline diamond composite (PDC-cutters) and to method of their production. Face surface of diamond plate secured to the substrate is processed for introduction of material to be connected or to partially fused with embedded catalytic binder or substitutes partially the imbedded catalytic binder in thermal channel at required depth. Material is selected so that it features lower thermal expansion and/or higher heat conductivity and/or has lower heat capacity than catalytic binder.

EFFECT: longer life, better thermal properties.

34 cl, 8 dwg