TY JOUR TI PRELIMINARY ANALYSIS OF THE MODERNIZATION OF METAL-CUTTING MACHINES KW stages KW metal-cutting machine KW modernization KW electric motor JO Bulletin of the Angarsk State Technical University AU Fedoreshchenko, N.V. AU Levitin, M.A. PY 2022 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»