CUTTING TOOL MULTI-LAYER COATING APPLICATION METHOD Russian patent published in 2007 - IPC C23C14/06 C23C14/24 B23B27/14 

FIELD: processes for applying wear-resistant coatings onto cutting tools by vacuum-plasma method, possibly at metal working industry branches.

SUBSTANCE: method comprises steps of applying layers of multi-layer coating with use of three cathodes horizontally arranged in the same plane; placing two cathodes of titanium one opposite to other and placing composite electrode of titanium and molybdenum between them; applying lower layer of titanium nitride at temperature 620°C ± 10°C; applying upper layer of titanium nitride and molybdenum at temperature 550°C ± 10°C.

EFFECT: improved working capacity of cutting tool, enhanced quality of working by such tool.

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