TY JOUR TI VIBRATION ANALYSIS OF THE ANGULAR MILLING HEAD FOR TECHNICAL CONDITION ASSESSMENT KW angular milling head KW dynamic characteristics KW vibration diagnostics KW impulse excitation KW technical maintenance JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Shlaev, K.I. PY 2024 IS 9 PB Belgorod State Technological University named after V.G. Shukhov