Interactive methods for increasing wear resistance of cutting tool blades

Abstract

In the scientific work, the features of the structure of the near-surface layer of high-speed steel R6M5, complex processing modified by the methods of the first ion-nitriding, ion alloying of the surface, and wear-resistant coating, its effect on the wear resistance of the tool during dry cutting of hard-to-cut chromium and its alloys are considered. One of the promising directions for hardening tools made of high-speed steel is the creation of layered structures on their surface with a gradient of physical and chemical properties between wear-resistant coatings and the base material. Among the methods for such surface modification is a special process based on the use of high-intensity pulsed beams of charged particles. Ion-nitriding treatment was carried out on the APP-2 unit, ion-alloying treatment was carried out on the unit, the latter with low friction coating. The advantage of this device is that it coats the Nb and Hf elements on the surface of the cutting tool, heats up to 10 6 deg/s in 5 μs, causing the two elements to diffuse into the cutting tool. The last treatment on the basis of reinforced cutting tools is coated with PLATIT π311 (TiAl)N. As a result, the stability of the cutting tool has increased by 3-4 times. The study was conducted at the Navoi Machine-Building Plant and conclusions were drawn.