Optoelectronics, Instrumentation and Data Processing. Vol. 61, No. 1, Pages 63-68, 2024

V. P. Bessmel’tsev^a, S. G. Baev^a, N. V. Goloshevskii^a^,*, A. V. Luk’yanov^b, and M. D. Zhumadilov^b

^aInstitute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Abstract— The method of nanostructural modification of the surface of metal specimens preliminarily subjected to heat treatment by femtosecond laser radiation is considered. The results of experiments on investigation of the process and determining the technological regimes of the micro-scale treatment of specimens—surface hardening and laser grinding—are presented. An increase in the surface microhardness for hardened blanks of tool steels and a subsequent reduction of the roughness without loss of hardness are demonstrated.

Keywords: femtosecond laser microscale treatment, galvanometric deflectors, complementary scanning systems, laser hardening and grinding

Investigation of the Methods of Laser Nanostructural Modification of the Surfaces of Specimens of Tool Steels Preliminarily Subjected to Heat Treatment