Electropolishing is the process of smoothing and/or brightening a metal surface anodically in a concentrated acid or alkaline solution. Anoplate is set up to perform it on either Stainless Steel or other Nickel rich alloys. While it can be done on many base metals as a preplate operation, it is commonly done on Stainless Steel as a final finish. It provides a chemically and physically clean surface and removes any mechanical surface asperities which may be detrimental to the production of uniform and pit-free electroplated surfaces or the future performance and appearance of a Stainless Steel product. It helps to deburr machined edges and holes as well as removes any imbedded iron from the manufacturing process. The current is greatest on the outside edges and outside corners of parts, which are left especially smooth. The longer the process is applied, the greater the amount of metal that is removed: holes can be enlarged, threads can be rounded, and sharp edges can be smoothed.
- Improved Appearance
- Burr Removal
- Cost effective microfinishing
- Avoidance of friction, leakage, and wear
- Medical Implants & Devices
- Food processing & handling equipment
- Pharmaceutical/laboratory equipment
- Gears & Splines
What is the difference between Anodizing and Electropolishing?
The electrochemical polishing procedure is different from anodizing. The main goal of the anodizing process is to form a protective oxide film in an electrolyte that will increase corrosion and wear resistance. It is done by immersing metals into an acid electrolyte bath where the current is passed between the anode and the cathode. Electropolishing, on the other hand, is used to eliminate asperities and clean metal parts surfaces. While Anoplate uses electropolishing to deburr and polish stainless steel exclusively, it can also be used on aluminum. Although the two are different, electropolishing is also essential as a pretreatment for the anodizing process as it provides smooth, decorative surfaces. Aside from giving a clean exterior, electropolishing also removes surface damages and edge breaks. It’s a great replacement for bright dip because it doesn’t produce toxic fumes and does not develop corrosion.
For questions or more information on any of our finishes and custom coatings, or to get started on selecting the right finishes for your project Contact Us Today.