INSERT FOR CRUSHING TOOL, METHOD OF ITS PRODUCTION AND TOOL WITH SAID INSERT Russian patent published in 2014 - IPC E21B10/573 

FIELD: process engineering.

SUBSTANCE: invention relates to cutting tool inserts that allow minimum depth of superhard material and high impact strength. Insert comprises superhard point secured to substrate over interface that features average modulus of elasticity over 900 GPa. Note here that substrate includes hardening trim with average modulus of elasticity making at least 60% of that of superhard point. Substrate aims at increasing the hardness of substrate area nearby interface and features volume twice as large as that of superhard point. In compliance with proposed method premade blanks for hardening trim, load bearing part and point. Said parts are assembled to make the assembly of blanks to be subjected to superhigh pressures and temperatures. Diamond preserves thermodynamic stability under said conditions.

EFFECT: high impacts effects delivered to ores and rocks.

15 cl, 6 dwg