Why Choose PEEK for CNC Machining?
PEEK stands out for its exceptional properties:
- High Temperature Stability: Retains mechanical strength up to 260 °C
- Chemical Resistance: Withstands acids, bases, and solvents
- Low Wear & Friction: Ideal for seals, bearings, and sliding components
- Biocompatible: Meets USP Class VI and FDA standards
- Lightweight & Strong: Offers metal-like performance at reduced weight
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Key Parameters of PEEK CNC Machining
- Material Grades: Unfilled PEEK, Carbon-Fiber PEEK, Glass-Filled PEEK
- Dimensional Tolerance: ±0.01 mm true position using 5-axis milling
- Surface Finish Options: As-machined, micro-bead blast, vapor polish, mirror diamond-turn
- Machining Techniques: 5-axis milling, turning, precision drilling
- Industry Applications: Aerospace, medical implants, energy connectors
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PEEK Material Comparison
| Grade |
Composition |
Best Feature |
Applications |
| Unfilled PEEK |
100 % PEEK |
High ductility and purity |
Implants, insulators |
| Carbon-Filled |
PEEK + Carbon Fiber |
Increased stiffness and wear resistance |
Aerospace brackets |
| Glass-Filled |
PEEK + Glass Fiber |
High dimensional stability |
Valves, pump parts |
PEEK CNC Workflow at Langhe Casting
We follow a stringent workflow to ensure top-quality PEEK parts:
- DFM Review: 24-hour feedback on manufacturability and tolerance
- 5-Axis Programming: Adaptive tool paths for precise geometry
- Thermal Management: Cryogenic CO₂ cooling for dimensional control
- Inline Inspection: CMM verification every batch to maintain accuracy
- Clean Room Finishing: Vapor polishing and ultrasonic cleaning for medical-grade parts
PEEK CNC Machining Services
Surface Finishes & Applications
| Finish |
Ra (µm) |
Application |
| As-Machined |
1.6 |
Functional prototypes |
| Micro-Bead Blast |
0.8 |
Aerospace fittings |
| Vapor Polish |
0.2 |
Medical implants |
| Mirror Diamond Turn |
0.05 |
Optical sealing seats |
Cost-Saving Strategies
- Rod Nesting: Optimize rod usage to reduce material waste by 20 %
- Trochoidal Milling: Speeds machining and cuts cycle time by 30 %
- Automated QC: Inline CMM inspection saves manual labor
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Industry Applications
- Aerospace: Insulators, cable clamps, fuel system parts
- Medical: Surgical tools, implant prototypes
- Energy: Down-hole sensors, valve seats
