Our electropolishing process is more than simple deburring — it also improves the surface finish by as much as 50 percent, removing peaks and imperfections from the material and reducing the Ra value.

Because Electropolishing can process non-ferrous metals, we are favored by clients fashioning electrical contacts out of beryllium copper. For example, we process multiple contacts for a client that stamps parts used in a two-way radio. These radios were not transmitting properly in the field, and their poor performance was traced back to flaws in the manufacturing of their contacts. The client was using vibratory tumbling as the last machining operation, but the engineers needed a process that would better prepare the surface before gold plating.

By electropolishing and testing various samples, we determined the ideal amount of surface metal to remove in order to solve our client’s quality issues. Electropolishing the part removed all surface contaminants embedded in the metal, allowing the gold plating to adhere to specifications. By deburring the part and creating a larger radius on the edges, we were also able to reduce the buildup of plating in those areas.

Send your samples for electropolishing and we will evaluate both finish and dimensional changes. If electropolishing is planned during the design stage, the material removal can be factored into your final size specifications.