PEEK CNC Machining: Properties, Challenges, and Applications
Key Technical Parameters Property Value Engineering Note Density 1.30 g/cm³ About 50% lighter than aluminum Tensile Strength 90–100 MPa Comparable to light alloys Flexural Modulus ~4 GPa Provides rigidity and stability Glass Transition Temperature 143 °C Transition to rubbery state Melting Point 343 °C High thermal processing limit Service Temperature Up to 250 °C Long-term stability Hardness Rockwell R126 Higher tool wear CNC Tolerance ±0.02 mm Precision machining feasible What is PEEK? PEEK (Polyether Ether Ketone) belongs to the PAEK family of high-performance polymers. It is a semi-crystalline thermoplastic known for its strength, toughness, and resistance to heat and chemicals. With a density of 1.30 g/cm³, it offers substantial weight reduction compared to metals, making it especially relevant in aerospace, automotive, and medical applications where performance and lightweight design must coexist. Why PEEK is Preferred in CNC Machining PEEK provides a rare balance of...