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. Diamond plate face surface secured to substrate is processed to remove embedded catalytic binder and to form a thermal channel. Then, material is embedded in diamond plate face surface. Embedded material fills the plate face surface for filling intermediate cavities left after removal of catalytic binder in thermal channel to preset depth. Said material should be less thermally expandable than catalytic binder, and/or more heat-conducting than catalytic binder, and/or feature lower heat capacity.
EFFECT: longer life, better thermal properties.
42 cl, 8 dwg
