Electropolishing: the route, the tolerances it holds, materials and design tips, with an indicative cost. One of 56 processes in the free finder.
SurfaceFamily
5Route steps
0Parts in finder
Electropolishing removes a thin surface layer electrochemically, leaving a bright, smooth, passivated finish, the reverse of plating.
At a glance
When to use it, and when not
Best for
Hygienic and corrosion-resistant finishes on stainless, as in medical and food equipment.
Watch for
Removes a little stock, conductive metals only, and bath handling.
Step by step
The typical route
Raw material to finished part. Steps vary with material, volume and tolerance; this is the free route from the finder.
Clean
Degrease the part.
Tooling - Tolerance - Lead -
Electropolish
Remove a thin bright layer electrochemically.
Tooling EP line Tolerance - Lead -
Passivate
Passivate stainless.
Tooling - Tolerance - Lead -
Rinse
Rinse and dry.
Tooling - Tolerance - Lead -
Inspect
Check Ra/brightness.
Tooling - Tolerance - Lead -
Materials
Materials it suits
Grade
Why it suits this
Stainless steel
Brightens, passivates
Other alloys
Varies
Design
Design tips
A few general pointers for Electropolishing. The full, part-specific DFM list is in the dossier.
Deep tool marks expected to vanish.Pre-finish first.
Tight dims not allowing removal.Allow for metal loss.
Cost
What it costs
Reverse plating that removes a thin layer for a bright, ultra-smooth, deburred, corrosion-improved surface (mostly stainless).
PER-PART COST vs VOLUME
Per-part cost drops as volume spreads tooling and setup over more parts. The exact figures for your part at your volume, in your currency, are in the dossier.
MODEL EST.
$4.2 to 12per part at 1 off
A rough ballpark only. The dossier gives should-cost at your exact volume and currency, with the full breakdown.
GET THE FULL DOSSIER
Everything you need to quote and source it
The free route above is yours. To actually put a number on this process and buy it well:
Should-cost at your exact volume in 12 currencies, with the material, processing, tooling and overhead breakdown
Who to source from, typical MOQ and lead time, and the exact RFQ checklist to send
A quote checker that tells you if a supplier quote is fair, and the red flags to watch
One part is $2, once. Pro is every part, plus the tracker, compare and sync. Cancel anytime.
BEYOND MANUFACTURING
41 verified industrial-engineering tools
SistematikWork is a whole IE platform. Past the free finder, there are 41 ready Excel calculators, templates and CAD guides, each built from real coursework and checked against known values.
Manufacturing & OperationsQuality & ReliabilitySupply ChainProject & StatisticsEngineering Career
Electropolishing removes a thin surface layer electrochemically, leaving a bright, smooth, passivated finish, the reverse of plating. The typical route is: Clean; Electropolish; Passivate; Rinse; Inspect. Hygienic and corrosion-resistant finishes on stainless, as in medical and food equipment.
What does Electropolishing cost per part?
It depends on size, tolerance and volume. As a rough ballpark it starts around $4.2 to 12 per part at low volume and falls with quantity. The dossier gives should-cost at your exact volume and currency. Model estimates, not quotes.
What tolerance can Electropolishing hold?
It depends on the feature and the finishing operations used.
What materials suit Electropolishing?
Common choices are Stainless steel (Brightens, passivates); Other alloys (Varies).
See the exact route and should-cost for your part
The free finder maps your part to its process and full route. Pro adds should-cost at your volume, sourcing and an RFQ draft.
