![]() Stainless steel is, after all, widely used and appreciated for its attractive appearance so we decided to prioritize this alloy over other metal types. Metals such as aluminum require more ‘firepower’ for effective polishing and passivation. By utilizing a portable power source instead of electrolytic baths, we intentionally sacrificed some of the versatility for more flexibility and improved focus on stainless steel treatment. However, Cougartron electropolishing equipment is suitable for stainless steel welds and surfaces only. Normally, the electrolytic method is suitable for all conductive metal surfaces – stainless steel, mild steel, aluminum, copper, to name a few. Is electropolishing suitable for all metal surfaces? ![]() The absence of dust and other flying particles is also a significant advantage of electropolishing.Ĭlick here to read about 5 common disadvantages of abrasive mechanical polishing. There is also no reduction in tensile strength when metal surfaces are polished using the electrolytic method. In addition, electrochemical polishing is done without exerting strong pressure on the surface, meaning you do not have to worry about bending and other damages often related to the use of hand tools. However, this is mainly done with the aid of abrasive disks and the absence of a chemical reaction required for surface (re) passivation. Similar to electropolishing, this technique is also used to remove a portion of the metal surface and reveal its inner (base metal) structure. Mechanical abrasive polishing is a widespread method used traditionally in a number of industries. Note: Electropolishing should not be confused with electroplating, a reverse process that adds a thin coating to the surface. Metal surface topography before and after electropolishing. The process removes a microscopic layer from the metal surface and thus solves a whole raft of problems with friction, protruded segments, crevices, scratches, dirt, residue, and indents. The metal parts are either immersed in special baths or, in our case, polished using portable machines that provide the required energy.Įlectrolytic fluids are distributed over the surface using a carbon brush which also conducts the necessary amount of electricity. Here at Cougartron, we are strong proponents of electrolytic polishing.Īnalogous to similar electrolytic procedures, electropolishing uses a balanced combination of weak electrical current and mild non-dangerous fluids (electrolytes). Needless to say, polishing is most applicable where improved aesthetics of finished products is a priority.Īesthetically pleasing results in terms of improved surface reflectivity, brightness, and smoothness are achieved by utilizing a magnitude of available commercial and DIY solutions. The end-goal of the process is a smooth metal surface devoid of imperfections and contaminants. To resolve these issues, we often use a combination of different metal finishing methods, polishing being one of them. Surface deformation, cross-contamination, and corrosion are some of the prominent side-effects of industrial metal fabrication. Thursday, 13 June 2019 (Electro) Polishing - Why is it done?
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