4.5-Axis CNC Machining for Stainless Steel 316
4.5-axis machining of 316 stainless is reserved for high-value components where the superior corrosion resistance justifies the challenging machining and high tooling costs.
Recommended Machining Parameters
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.02 mm |
| Surface Finish | Ra 1.0-3.2 μm |
| Cutting Speed | 40-80 m/min |
| Feed Rate | 0.05-0.10 mm/tooth |
| Tooling Recommendations | Nanocomposite-coated premium carbide. Variable helix end mills. Consider ceramic for roughing. |
Expert Machining Tips
1
Premium tooling pays for itself — do not skimp
2
Program tool orientation to maximize chip thickness
3
Reduce speed further at full-slot engagement angles
4
Allow ample time for thermal equilibrium
Common Parts Made
Marine propeller components
Pharmaceutical mixing impellers
Nuclear valve bodies
Offshore structural parts
Machining Challenges
- Extreme tool wear
- Stringy chips clog flutes at awkward angles
- Requires most rigid machine possible