CUTTING TOOL WITH WEAR-RESISTANT COATING Russian patent published in 2019 - IPC B23B27/14 C23C14/06 B82Y30/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to a metal cutting tool, in particular, to cutting plates and mills used for processing articles from hard-to-process materials, including titanium and its alloys. Cutting tool with wear-resistant coating, containing cutting edges formed at intersection of front and rear surfaces of hard-alloy base of cutting part, in which wear-resistant coating includes at least structure made of TiB_2. Structure formed from TiB₂, contains at least serially applied TiB₂ intermediate layer and wear-resistant TiB₂ layer. Intermediate layer has column metallographic structure with predominant orientation 001. Wear-resistant layer contains at least a layer with an internal structure with textured nanocolumnar grains with orientation 001 with an amorphous p-phase within the boundaries of said grains.

EFFECT: higher resistance of cutting tool with TiB₂-containing coating.

10 cl, 5 dwg, 1 ex