CUTTING TOOL WITH COATING AND METHOD OF MAKING COATED CUTTING TOOLS Russian patent published in 2019 - IPC B23B27/14 C23C14/06 C23C14/24 C23C14/35 

FIELD: metallurgy.

SUBSTANCE: present invention relates to a cutting tool with a coating for mechanical processing of metal, such as machining with formation of chips, method of making said coated cutting tool and a cutting plate made in the form of a coated cutting tool. Cutting tool with a coating comprises a substrate and a coating on said substrate, comprising a layer consisting of Ti_xZr_yAl_(1-xy)N, wherein 0<x≤0.3, 0.2≤y≤0.8 and 0.1≤(1-x-y)≤0.7. Method of making a coated cutting tool comprises placing the substrate in a deposition chamber and applying a coating comprising a layer consisting of Ti_xZr_yAl_(1-xy)N, where 0<x≤0.3, 0.2≤y≤0.8 and 0.1≤ (1-x-y)≤0.7.

EFFECT: providing a cutting tool with a coating with improved properties during a machining cycle, particularly a coating, which is more stable at high temperatures.

19 cl, 3 dwg, 1 tbl