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CNC machining materials
CNC Machining in PEEK
Plastics are another common material used in CNC turning because they are available in many different options, are relatively inexpensive, and have faster machining times. Commonly used plastics include ABS, acrylic, polycarbonate and nylon.
PEEK (Polyetheretherketone) Description
PEEK is a high-performance thermoplastic material known for its excellent mechanical properties, chemical resistance, and biocompatibility. It is often used in demanding applications that require high strength and resistance to sterilization processes.
Application
Implantable medical devices
Surgical instruments
Aerospace components
Oil and gas industry components
Strengths
High strength and stiffness
Excellent chemical resistance
Biocompatible and sterilizable
Good dimensional stability
Weaknesses
High cost
Difficult to process
Price
$$$$$
Lead Time
Varies
Wall Thickness
Varies
Tolerances
Varies
Max part size
Varies
Layer height
Varies
Popular science information about
PEEK (Polyether ether ketone)
PEEK (Polyether ether ketone) is a high-performance thermoplastic polymer that belongs to the family of polyaryletherketones. It is derived from the condensation polymerization of biphenyl and 4,4'-difluorobenzophenone.
One of the key advantages of PEEK is its excellent mechanical strength and stiffness. It has a high tensile strength, flexural strength, and modulus of elasticity, allowing it to withstand heavy loads and resist deformation. PEEK also exhibits good dimensional stability, maintaining its shape and size even under varying temperature conditions.
PEEK is widely used in industries such as aerospace, automotive, medical, and chemical processing. In aerospace applications, PEEK is used for components that require high strength, stiffness, and resistance to extreme temperatures. In the medical field, PEEK is used for implants and devices due to its biocompatibility, resistance to sterilization methods, and ability to withstand bodily fluids.
PEEK also offers good electrical insulation properties, making it suitable for electrical and electronic applications. It has a low dielectric constant and loss factor, allowing it to maintain its electrical performance even at high frequencies.
