PROCEDURE FOR CUTTING TOOL MULTI-LAYER COATING Russian patent published in 2011 - IPC C23C14/24 B23B27/14 

FIELD: machine building.

SUBSTANCE: two-layer coating is applied on working surfaces of cutting tool by vacuum-plasma procedure. As a lower layer there is applied titanium and molybdenum carbonitride, or titanium and chromium carbonitride, or titanium and niobium carbonitride. As an upper layer there is applied titanium and molybdenum nitride or titanium and chromium nitride, or titanium and niobium nitride alloyed with silicon.

EFFECT: increased functionality of cutting tool and upgraded quality of processing.

2 cl, 1 tbl