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

ParameterValue
Achievable Tolerances±0.05 mm (prototype standard)
Surface FinishRa 1.6-3.2 μm
Cutting Speed100-250 m/min
Feed Rate0.05-0.15 mm/tooth
Tooling RecommendationsSharp 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

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