4.5-Axis CNC Machining for Titanium Grade 5 (Ti-6Al-4V)
4.5-axis machining is essential for titanium aerospace components with complex geometries. It reduces setups and improves accuracy while the continuous tool engagement helps manage titanium's poor thermal conductivity.
Recommended Machining Parameters
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.02 mm |
| Surface Finish | Ra 0.8-3.2 μm |
| Cutting Speed | 30-60 m/min |
| Feed Rate | 0.08-0.15 mm/tooth |
| Tooling Recommendations | Uncoated or PVD-coated carbide. Ball nose for profiling. Barrel cutters for surface finish efficiency. |
Expert Machining Tips
1
Keep constant chip thickness at all angles
2
Program with tilt to avoid center-of-ball contact
3
Through-spindle high-pressure coolant is mandatory
4
Verify collisions extensively — titanium mistakes are expensive
Common Parts Made
Turbine blades
Structural aerospace fittings
Medical implant geometries
Blisk components
Landing gear fittings
Machining Challenges
- Very slow material removal rate
- Highest tooling cost of any material
- Fire risk with titanium chips
- Machine hours per part can exceed 40+