METHODS OF FORMING SUPPORT SUBSTRATES FOR CUTTING ELEMENTS AND CORRESPONDING CUTTING ELEMENTS, METHODS OF FORMING CUTTING ELEMENTS AND ROCK CUTTING TOOLS Russian patent published in 2020 - IPC B22F7/02 B22F5/00 C22C29/08 B22F3/16 B22F3/24 C22C26/00 

FIELD: technological processes.

SUBSTANCE: group of inventions relates to formation of a support substrate for a cutting element, the formation of a cutting element, a structure for a rock cutting tool and a rock cutting tool. Method of forming a support substrate for a cutting element comprises forming a precursor composition comprising discrete WC particles, a binder and discrete particles containing Co, Al and one or more of C and W, subjecting the precursor composition to a densification process using a seal temperature higher than or equal to the discrete particles transition temperature.

EFFECT: formation of a densified structure containing WC particles dispersed in a homogenised binder containing Co, Al, W and C.

15 cl, 21 dwg, 37 ex