Who uses electropolishing?

1
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2
Who uses electropolishing?

• Since the 1950s, scientists have commercially
  used the combination of electricity and chemicals
  to improve the surface finish of metals. It is a
  common finishing procedure across a wide variety
  of industries, including the following
• Surgeons and dentists use electropolishing to
  keep their tools clean and functioning well.
• Food, beverage and pharmaceutical
  processors benefit from the sterilizing features
  of electropolishing.
• Appliance manufacturers use electropolishing in
  appliances like refrigerators and washing
  machines to make parts last longer and look
  better.

3

• erospace manufacturers use electropolishing on
  flight-critical parts to reduce friction and
  ensure top performance.
• Semiconductor manufacturers use electropolishing
  with fragile, irregularly-shaped products.
• Automakers and the racing industry electropolish
  gears and fuel lines to reduce friction, boost
  performance and ensure long life of parts.

4
Examples of metal parts commonly
electropolished

• Piping and tubing
• Fasteners
• Springs
• Wire racks
• Blades

5
Which metals work with electropolishing?

• Electropolishing of stainless steel is the most
  common use of the process. Although nearly any
  metal will work, the most commonly
  electropolished metals are 300- and 400-series
  stainless steel.
• Parts made from 400-series stainless steel (SS)
  have the advantage of increased hardness and
  strength but the trade-off is increased
  susceptibility to corrosion. By electropolishing
  stainless steel, engineers can use 400-series SS
  and still provide protection from corrosion.

6
Other metals compatible with electropolishing
include

• Aluminum
• Brass
• Carbon steels
• Cobalt-chrome
• Copper
• Nickel alloys

7

• Note that only limited success can be achieved
  with cast metals, such as alloys containing
  significant amounts of silicon, sulfur or carbon.
  Electropolishing aluminum and zinc die castings
  does not work well, but most other alloys of
  aluminum yield good results.
• Titanium and Nitinol are also compatible with
  electropolishing however, the electrolyte
  solution for these metals is highly flammable and
  requires chillers to prevent the electrolyte from
  combusting at room temperature. Due to the
  hazardous nature of the electrolyte, Best
  Technology does not offer equipment for
  electropolishing titanium or Nitinol.