LAUSR

The work is devoted to the experimental study of the efficiency of Arc-PVD and PACVD industrial technologies for the application of diamond-like carbon (DLC) coatings on ceramic cutting plates based on Al2O3 + TiC to increase the wear resistance of the tool when turning of bearing hardened steel 102Cr6. The authors conducted a set of studies and tests as the study of the structure of DLC coatings (correlation between sp3 and sp2 bonds) using photoelectron spectroscopy; evaluation of roughness, microhardness and adhesive bond strength of DLC coatings with the ceramic base; study of coated ceramics wear under fretting conditions; and experimental evaluation of the effect of DLC coatings on the resistance of ceramic plates during turning of hardened steel. The durability of ceramic plates was increased by 1.6 times by applying PACVD DLC coatings. A slightly smaller effect in 1.4 times was achieved by applying DLC coatings using Arc-PVD technology.