From prototyping to production, our production sites can handle all your manufacturing projects.
Home / All / CNC Machining Process & Technology / What does Ra 0.2 µm mirror finishing mean for Automotive & EV motor housing & busbar?
What does Ra 0.2 µm mirror finishing mean for Automotive & EV motor housing & busbar?
In plain buyer terms
Ra is roughness. Lower Ra = smoother, cleaner, less friction and easier to sterilize or seal. LusterControl reaches Ra 0.6 μm (standard), up to 8K mirror Ra 0.2 μm on stainless. For Automotive & EV motor housing & busbar where thermal flatness & creep at high voltage, that smoothness is often the difference between a seal that holds and one that weeps.
What to ask your supplier
- Request the Ra value on the print, not just "polished".
- Ask for a surface-profile trace, not a photo.
- Confirm electropolishing is done in-house so lead time stays short.
Consolidate one-source supply and protect your private label.
Are you looking for a reliable manufacturer?
We can quickly provide customers with market analysis, technical support and customized services.From prototyping to production, our production sites can handle all your manufacturing projects.
subscription