4.5-Axis CNC Machining for Stainless Steel 304
4.5-axis machining of 304 stainless enables complex medical, food processing, and architectural components in a single setup. Maintaining constant chip engagement is critical on all tool vectors.
Recommended Machining Parameters
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.02 mm |
| Surface Finish | Ra 0.8-3.2 μm |
| Cutting Speed | 50-100 m/min |
| Feed Rate | 0.05-0.10 mm/tooth |
| Tooling Recommendations | Premium carbide with AlTiN coating. Ball nose tools for contours. High-feed face mills for roughing. |
Expert Machining Tips
1
Use constant engagement toolpaths (Volumill, Adaptive)
2
Maintain chip thinning compensation at all angles
3
High-pressure coolant through all axes
4
Verify thermal stability of machine before precision cuts
Common Parts Made
Medical device components
Complex valve bodies
Turbine flow paths
Impeller channels
Architectural sculptures
Machining Challenges
- Work-hardening varies with tool angle
- Chip evacuation in deep 4.5-axis features
- Long cycle times