Rapid Prototyping for PEEK (Polyether Ether Ketone)
PEEK rapid prototyping provides production-representative parts for aerospace, medical, and semiconductor validation. The high material cost makes design optimization critical before cutting.
Recommended Machining Parameters
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.05 mm (prototype standard) |
| Surface Finish | Ra 1.6-3.2 μm |
| Cutting Speed | 100-250 m/min |
| Feed Rate | 0.05-0.15 mm/tooth |
| Tooling Recommendations | Sharp uncoated carbide. |
Expert Machining Tips
1
Optimize design to minimize material waste
2
Consider cheaper plastics for initial form/fit checks
3
Stock availability may add lead time
4
Air cooling only to maintain material properties
Common Parts Made
Aerospace bearing prototypes
Medical device housings
Semiconductor fixtures
Machining Challenges
- Very expensive stock — $100+/kg
- Limited stock sizes may require special order
- Material properties change with machining temperature