PEEK is a type of polymer, which is a material made of long chains of molecules. It is known for its high strength, stiffness, and resistance to high temperatures and chemicals. Peek is commonly used in applications where high performance is required, such as in the aerospace, automotive, and medical industries. It is also used in the manufacturing of high-performance engineering plastics, bearings, and other parts. Some specific examples of parts that may be made from peek include fuel system components, electrical connectors, and gears. It is also used in the production of surgical instruments, implants, and other medical devices. Since PEEK has excellent mechanical and chemical properties, it is often used as a replacement for metal parts in a variety of applications.
Peek is often used in the manufacturing of medical devices because of its excellent mechanical and chemical properties. It is a strong and stiff material that is resistant to high temperatures and chemicals, which makes it ideal for use in medical applications where these properties are important. In addition, peek is biocompatible, which means that it is safe for use in contact with the human body. This makes it an attractive material for use in surgical instruments, implants, and other medical devices. Peek is also easy to sterilize and has a low coefficient of friction, which makes it suitable for use in devices that require precision movement or sliding.
PEEK is generally considered to be a challenging material to machine because it is extremely strong and stiff, and it tends to generate a lot of heat when it is being machined. This can make it difficult to achieve the desired tolerances and surface finishes when machining PEEK. In addition, PEEK has a low coefficient of thermal expansion, which means that it does not expand or contract much in response to changes in temperature. This can cause problems with tooling and fixtures, as they may not maintain the required tolerances as the temperature changes during the machining process. To overcome these challenges, it is important to use high-quality cutting tools and coolants, and to carefully control the machining process to minimize heat generation.
Peek is generally considered to be a clean-cutting material, which means that it does not tend to produce burrs when it is machined. This is because peek is a strong and stiff material that is resistant to plastic deformation, and it tends to shear rather than tear when it is being machined. As a result, it is less likely to produce burrs than other materials that are more prone to tearing or deformation. However, it is still possible for peek to produce burrs under certain conditions, such as when it is machined at high speeds or with poor-quality cutting tools. In these cases, it may be necessary to use deburring techniques to remove any burrs that are present.
Cryogenic Deburring PEEK
Cryogenic deburring is a preferred method to deburr PEEK machined parts. Cryogenic deburring is a process in which parts are cooled to very low temperatures using liquid nitrogen and then blasted with a cryogenic-grade polycarbonate media. This can help to improve the surface finish of the parts and remove any burrs or other defects that may be present. The low temperatures make the burrs brittle like, which allows them to be removed with relative ease.
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