The process of electrolytic plasma polishing
The process of electrolytic plasma polishing has been industrially usable fairly recently and is still relatively unknown. The following should explain the process of plasma polishing and the resulting benefits of it. For a more detailed description please follow the links at the end of each section.
Procedure
Anodically polarized metallic workpieces are placed in an electrolytic bath for the plasma polishing process. The electrolyte consists of a solution of about 98% water and 2-3% salt. This produces gas which wetted the workpiece to be polished and results in process-induced development of plasma. This plasma coats the workpiece and leads to a reduction of the roughness as well as removes organic and inorganic contaminants with minimal mass loss. Depending on the material specifications the typical material removal lies between 2 - 8 µm per minute. The geometric shape of the component is almost maintained.