PROCEDURE FOR PRODUCTION OF MULTI-LAYER COATING FOR CUTTING TOOL

摘要

FIELD: metallurgy. ^ SUBSTANCE: procedure for production of multi-layer coating for cutting tool consists in vacuum-plasma application of three-layer coating. Carbonitride of titanium and chromium is applied as a lower layer at pressure of acetylene of 7.510-4 Pa and temperature 600C in a chamber of installation. Same carbonitride alloyed with silicon is applied as an intermediate layer at pressure of acetylene of 7.510-4 Pa and temperature 550C in the chamber of the installation. Carbonitride of titanium and silicon is applied as an upper layer at pressure of acetylene of 4.310-3 Pa and temperature 500C in the chamber of the installation. ^ EFFECT: increased functionality of tool and upgraded quality of treatment. ^ 2 cl, 1 tbl, 1 ex