Machining Medical PEEK (Polyetheretherketone): Speeds & Feeds, Tooling & Best Practices
Technical machining guide for Medical PEEK (Polyetheretherketone) (High-Performance Thermoplastic): optimal cutting speeds (120 - 250 m/min), feeds (0.08 - 0.20 mm/tooth), hardness (85 Shore D), and precision manufacturing practices.
Engineering Specifications & Parameters
Chip Load (fz)
0.08 - 0.20 mm/tooth
Material Grade
Medical PEEK (Polyetheretherketone)
Material Hardness
85 Shore D
Cutting Speed (Vc)
120 - 250 m/min
Alloy Classification
High-Performance Thermoplastic
Primary Applications
Spinal fusion cages, bone trauma anchor pins, and surgical d...
Material Properties & Machinability Profile
Medical PEEK (Polyetheretherketone) is classified as a High-Performance Thermoplastic widely specified for mission-critical components requiring Spinal fusion cages, bone trauma anchor pins, and surgical drill guide sleeves..
Chip Load ($f_z$): Maintained between 0.08 - 0.20 mm/tooth to prevent tool rubbing or excessive mechanical shock.
Machinability Challenge: Biocompatible ISO 10993 polymer with bone-like modulus of elasticity (3.6 GPa); requires DI water cooling without synthetic oils.
Tooling Strategy: Employs high-pressure flood coolant (>= 30 bar) and micro-grain carbide or specialized inserts with positive rake geometries.
