METHOD FOR ELECTROLYTIC-PLASMA POLISHING OF PART IN ALTERNATING MAGNETIC FIELD AT LOW PRESSURE Russian patent published in 2024 - IPC C25F3/16 

FIELD: various technological processes.

SUBSTANCE: invention relates to electrolytic-plasma treatment of metal parts and can be used for polishing blades of turbomachines from titanium and nickel alloys. Method includes immersion of part in electrolyte, creation of magnetic field around processed part, formation of a vapour-gas shell around the processed surface of the part and ignition of a discharge between the processed part and the electrolyte by supplying an electric potential to the part, at that, creating an alternating magnetic field with a frequency selected from range from 10 to 200 Hz, and polishing is carried out at a reduced pressure, selected from range from 0.9 to 4 kPa, at electrolyte temperature selected from 7 to 30 °C, and when the processed part is supplied with a positive potential selected from range from 10 to 80 V.

EFFECT: providing uniform polishing of the surface of a large-sized part with simultaneous processing of the entire or most part of its polished surface.

7 cl, 3 tbl, 1 dwg, 1 ex