The Electropolishing process

New England Electropolishing

The Electropolishing Process

The electropolishing process is initiated by immersing a metal part into a temperature-controlled bath of electrolyte (typically a mixture of sulfuric acid and phosphoric acid).

The working part is positively charged to act as the anode and is submerged in the solution along with negatively charged cathodes. A direct electrical current is then applied to the solution that causes minute fragments of the material to pull away from the workpiece as they are dissolved into the electrolyte solution—leaving behind a clean, smoothed surface.

Afterward, the parts are subjected to multiple rinsing steps to ensure any residual electrolyte is removed before the parts are dried and shipped out.

Whats the Difference between electropolishing and passivation?

Resources

What is Electropolishing?

Electropolishing is an electrochemical and reverse plating process that removes the outer layer of skin on a metal...

The Electropolishing Process

The electropolishing process is initiated by immersing a metal part into a temperature-controlled bath of electrolyte...

Benefits of Electropolishing

Curious about the benefits of putting your parts through the electropolishing process? Read along below where we...

How Much Material Does Electropolishing Remove?

Electropolishing, when done properly is a highly controllable process which removes as little as...

How Much Will Electropolishing Improve the Surface of my Part?

Ra and RMS are both representations of surface roughness. Ra is calculated as the roughness average of a surface’s...

Electropolishing Frequently Asked Questions

Learn the difference between electropolishing and electroplating as well as how the electropolishing process works...

What is ASTM B912?

ASTM B912 is an industry standard for the passivation of stainless steel alloys through electropolishing...

What is ASTM A967

ASTM A967 is an industry standard specification for the chemical passivation treatments for stainless...

What is ISO 13485?

ISO 13485 is a standard that applies specifically to medical devices. ISO 13485 is designed to be...