Increasing the surface stability of the cutting tool through complex machining

Abstract

Nowadays, the application of multilayer coatings is widely used to increase the abrasion resistance of cutting tools. Before applying the multilayer coating, the selected cutting tool was purified in a bath with a disc cutting surface from quick-cutting steel and carried out the process of ion-nitriding or chemical-thermal treatment. In this case, nitrogen and argon ions diffuse over the surface of the disc cutter. Ion alloying using low-energy high-precision electron beams followed this process. The processing was carried out on a single-chamber two-system magnetron installation “RITM-SP-M”. Finishing was carried out by disc milling with Swiss Platit π311 ((TiCr)N-(TiAl)N-(CrAlSi)N+ion nitriding, (TiCr)N-(TiAl)N-(CrAlSi)N(nATCRo3)), (TiAl)N+ion nitriding + ion alloying (NbHf), (TiAl)N, (TiAl)N+ion nitriding, diamond-like coatings).Such multilayer coatings were tested at the Navoi mining and metallurgical plant “Navoi machine-building plant”. Machined disc cutters have been tested on 34XH1MA which is difficult to machine.