EXPERIMENTAL STUDIES OF CUTTING FORCES DURING GRINDING OF STRUCTURAL HIGH-STRENGTH STEELS

Abstract

The bulk of research was carried out on steels Н8К18М12 (maraging, low-carbon) and 12Х2Н4А (carbon carburized
hardened). As a result of the experiments carried out, it was found that the cutting forces when grinding with
electrocorundum, CBN and diamond wheels reach significant values. It has been established that the cutting forces Py and Pz
in the range of modes that are mainly used for flat and circular grinding can reach the values, respectively, Py = 30N, Pz =
20N. When grinding Н8К18М12 steel, the cutting forces are 20 ... 50% higher than the cutting forces when grinding
carburized and hardened carbon steels.
With a decrease in the grain size of the wheel, the forces increase significantly, which increases the energy
consumption of the grinding process.
Compared to the process of grinding with electrocorundum wheels, the cutting forces when using CBN wheels are
reduced by 20-25%, and when using diamond wheels, the cutting forces are reduced by 25-30%.