4.5-Axis CNC Machining for Aluminum 7075-T6
4.5-axis machining of 7075 aluminum is essential for high-strength aerospace components with complex geometries that would require multiple setups on 3-axis machines.
Recommended Machining Parameters
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.02 mm |
| Surface Finish | Ra 0.4-1.6 μm |
| Cutting Speed | 150-350 m/min |
| Feed Rate | 0.05-0.12 mm/tooth |
| Tooling Recommendations | Premium carbide ball nose end mills. TiAlN coated. Long-reach high-performance tools. |
Expert Machining Tips
1
Program optimal tool orientation to minimize tool deflection
2
Use trochoidal milling in deep pockets
3
Consider cryogenic cooling for deep roughing
4
Verify tool paths with simulation before cutting
Common Parts Made
Wing ribs and spars
Monolithic structural parts
Engine mount brackets
Complex fittings
Defense housings
Machining Challenges
- Residual stress management
- Thin-wall deflection
- Long cycle times for large billets