Precautions for CNC PEEK Machining

DALIAN, China - Feb. 5, 2023 - PRLog -- The diversity of engineering applications requires that materials can perform best under a wide range of temperature conditions. PEEK is such a material, which has the advantages of being a lightweight polymer in addition to good performance in high temperature and wide temperature range.

PEEK is a semi crystalline thermoplastic that can work continuously at temperatures up to 250 ° C, and has high chemical resistance. PEEK also has excellent tensile properties and excellent creep resistance.

It has made outstanding contributions in reducing mass and improving performance. It can replace traditional materials such as metals and ceramics in many special fields, and has become one of the recognized thermoplastic materials with the highest performance in the world. These characteristics of PEEK make it very suitable for medical, aerospace, semiconductor, oil and gas industries.

It is usually manufactured through gradual polymerization. PEEK is more expensive than other polymers, but it provides excellent performance in multiple dimensions. PEEK has excellent wear resistance and abrasion resistance, which is required by many engineering fields. PEEK is a processable thermoplastic, but important steps must be taken before, during and after processing to provide the best final product.

Annealing

Due to the high melting point of PEEK, compared with other polymers, a faster feed rate and speed can be used in the processing process. Before starting the processing, special annealing requirements must be met to avoid internal stress and heat related cracks during the processing.

Annealing is a process carried out on PEEK bars to release stress and reduce the possibility of stress and surface cracking of PEEK materials during processing. Annealed PEEK is also unlikely to deform. Depending on the time required for processing, several annealing stages may be required.

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