Aluminum 7075 machines well despite its high strength, producing clean chips and good surface finishes. Higher cutting forces than 6061 require slightly more rigid setups but the material rewards with excellent precision.
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.005 mm (±0.0002") |
| Surface Finish | Ra 0.4-1.6 μm |
| Cutting Speed | 150-350 m/min (SFM 500-1150) |
| Feed Rate | 0.05-0.12 mm/tooth |
| Tooling Recommendations | Carbide end mills with 2-3 flutes, TiAlN or ZrN coated for extended life. |
Slightly lower speeds than 6061 due to harder matrix
Ensure rigid workholding to prevent vibration
Use sharp tools to avoid work-hardening
Flood coolant recommended for deep pockets
Aerospace structural components
Aircraft fittings
Gears and shafts
High-stress brackets
Military components
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