International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

A method has been developed for performing electrolyte-plasma treatment (EPT) of internal surfaces. The method is based on the use of an electrode device that moves along the inner surface of the tubular workpiece and provides the necessary electrical and hydrodynamic conditions. The design of the electrode device combines a counter-electrode and a nozzle for supplying polarized electrolyte to the treated surface. The study presents the results of investigations into the electrical and hydrodynamic conditions during EPT of internal surfaces, as well as the influence of hydrodynamic characteristics on current parameters, metal removal rate, and the quality of the resulting surface.