METHOD OF ELECTROPOLISHING OF METAL PART Russian patent published in 2020 - IPC C25F3/16 C25F3/24 

FIELD: technological processes.

SUBSTANCE: invention relates to electroplating and can be used for processing surfaces of blades of turbomachines for improving their operational characteristics. Method includes immersing a part into a conductive medium and feeding an opposite sign of the electric potential to the part and a conductive medium through an electrode introduced into said medium, wherein electropolishing is carried out in a medium of granules made from anion exchangers impregnated with electrolyte solution, providing electroconductivity of said granules, using an electrode enclosing the part surface to be treated with a gap, moving said granules through said gap to allow contact of the entire polished part surface with said granules and granules to each other, wherein ratio of granule size a and gap size b between electrode and part surface is selected not less than b = 10 a, and supplied to part and granules electric potential, which provides for polishing of processed part in medium of said granules to obtain specified roughness of surface.

EFFECT: higher quality and reliability of surface treatment of metal part due to increased homogeneity of its surface treatment, reduced probability of defects occurrence, reduced roughness and rounding of blade edges.

10 cl, 2 dwg