The Electropolishing process
New England ElectropolishingThe 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...
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...
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...