DefinePK

Abstract

Modern methods of materials laser processing are being actively introduced into production. However, their wide application in engineering is hampered by the high energy intensity of the processes and the unexplored of complex fast processes of such processing technologies. This work is devoted to hybrid laser technologies for material processing, in particular laser-field hardening of metals. A theoretical study of the laser interaction with a metal is carried out, it is shown that the reflection coefficient of laser radiation and the depth of its penetration depend on the electrical conductivity of the skin layer. The main interrelations between the quality parameters of the treated layer and the parameters of the laser-field technological complex are revealed. Investigations on laser hardening in the electrostatic field of steels, widely used in engineering, have been carried out (Steel 10, 45, 65G). It is shown, that the superposition of the electrostatic field on the treatment zone leads to an increase in the depth and hardness of the quenched layer due to the directed motion of electrons in metals.