The technology of obtaining a deep-nitrated layer on the teeth of disc saw of the saw cylinder for a short period of time (0.5–2 hours) and subsequent standard heat treatment is considered. The results of testing of resistant characteristics of circular saws, made of U8G steel and processed using deep nitriding technology, are presented.

The article covers analysis of the force interaction of knife and material being cut; the components of cutting force on the main operating elements of cutting tool are obtained. The mathematical analysis of the value of “clean” cutting component is given, and the cutting ability of the blade with purpose of improving the cut quality is determined.

The article discusses the problems of improving the functional quality of lamellar knives by such key indicators as cutting ability and blade resistance.

No abstract

This work presents the results of the formation of the blade due to the intersection of microreliefs of the side surfaces, moreover, the microgeometry influenced by not only the technological parameters of the grinding, but also the physical and mechanical properties of the material, as well as the forces that arise during grinding.