METHOD OF TREATING CUTTING TOOLS FOR ORGANIC MATERIALS AND CERAMICS Russian patent published in 1997 - IPC

FIELD: metallurgy. SUBSTANCE: invention focuses on strengthening system thermal treatment and depositing ceramic materials onto cutting tool that may be of use in production of refractory material products, as well as in instrumentation engineering when treating laminated plastics, in radioelectronics, and in mechanical engineering. According to invention, on cutting surfaces of tool made of hard alloys and titanium alloys, titanium carbonitride layer is applied using vacuum treatment at 840-950 C for 1-2 h in carbon-enriched atmosphere with subsequent deposition of 100-400-mcm ceramic alumina layer onto primarily applied underlayer followed by fusion by means of electron beam or protected laser. Offered technology is feasible in small-scale production enterprises and makes it possible to 2-3 times increase wear-resistant of tool when working with fiber-glass plastics and hot-pressed ceramics. EFFECT: increased wear resistance of cutting tools. 10 cl, 1 dwg