TY JOUR TI Current trends in ultrasonic liquid machining in mechanical engineering KW ultrasonic technology KW mechanical engineering KW acoustic flows KW cavitation KW cavitation erosion JO Science intensive technologies in mechanical engineering AU Prikhodko, V.M. AU Nigmetzyanov, R.I. AU Sundukov, S.K. AU Fatyukhin, D.S. PY 2021 IS 2021 PB Bryansk State Technical University