Surface Finishing for Aluminum 6061-T6
Aluminum 6061 accepts a wide range of surface finishes and is one of the best materials for anodizing, producing vibrant colors and excellent wear resistance.
Recommended Machining Parameters
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.02 mm (±0.0008") |
| Surface Finish | Ra 0.4-3.2 μm depending on treatment |
| Cutting Speed | N/A — post-machining process |
| Feed Rate | N/A — post-machining process |
| Tooling Recommendations | N/A — surface finishing chemicals and equipment |
Expert Machining Tips
1
Type II anodize for color and corrosion protection
2
Type III (hardcoat) for wear resistance
3
Bead blast before anodize for uniform matte finish
4
Chromate conversion (Alodine) for conductivity + corrosion protection
Common Parts Made
Anodized housings
Powder-coated enclosures
Chromated aerospace parts
Brushed consumer products
Machining Challenges
- Anodize adds 10-25μm thickness per side
- Color matching between batches
- Sharp edges may have thin anodize coverage