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Electropolishing Applications

When you need parts to have a consistent finish, free of imperfections, electropolishing can be an ideal process for your company’s small metal parts.

What is Electropolishing?

Electropolishing is a metal treatment process, often referred to as a “reverse plating process,” that electro-chemically removes the outermost layer of metal to create a uniform surface. Unlike other mechanical polishing processes, electropolished parts aren’t tumbled or vibrated, eliminating the risk for uneven surfaces. Instead, electropolished parts are immersed in a chemical bath, which removes a uniform layer of material and eliminates embedded contaminants and micro defects.

The Benefits of Electropolishing

A common purpose of electropolishing is to remove surface material in a systematic fashion in order to remove defects that can only be seen at a microscopic level. By having your parts electropolished, they will be more resistant to cracking and corrosion, making your parts more reliable and long-lasting. Although less common, you may have your parts electropolished for cosmetic reasons. Once metal products undergo electropolishing, they are cleaned, brightened and polished for an overall improved aesthetic appeal.

Common Applications

Because so many industries, including medical, dental, pharmaceutical, aerospace and more, utilize electropolishing for their products, it has become a common finishing procedure for many small metal parts, including:

  • Fasteners – Ideal for deburring threads, reducing galling, and improving corrosion resistance; it is especially useful for marine applications.
  • Springs – Ideal for reducing or removing cracks and fissures created during forming, as well as preventing premature product failure.
  • Wire racks – Ideal for removing weld discoloration and creating a clean, attractive, sanitary finish, as well as for improving corrosion resistance at the weld joints.
  • Blades – Ideal for creating a sharp, smooth surface. By removing, stamping, and grinding burrs, it eliminates the chance that flecks of metal will dislodge from the part.
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