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CNC Machining PEEK

CNC Machining PEEK

Flourish Legend specializes in the extrusion, rapid injection moulding, compression molding, and machining of specialty engineering plastic products, with extensive experience in the peek CNC machining (Polyether Ether Ketone) industry. We are experts in manufacturing finished PEEK machined parts and profiles, including rods, sheets, pipes, and films, and offer integrated solutions for the development, design, production, and sales of specialty engineering finished peek plastic parts and semi-finished profiles for various industries. We welcome you to provide us with drawings or samples, and Flourish Legend will provide you with tailored solutions.


Basics of PEEK CNC Machining

PEEK (Polyether Ether Ketone) is an aromatic crystalline thermoplastic polymer material that possesses high mechanical strength, high-temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, radiation resistance, and excellent electrical properties.


Before discussing the processing of PEEK, it is important to have a clear understanding of machining peek plastic processing. CNC (Computer Numerical Control) machining is a manufacturing process that involves the use of computer-controlled machine tools. In the case of custom plastic machining, it involves the precise removal of layers from the plastic material. The technology of carving and machining peek plastic with drilling tools was introduced by MIT in the 1950s, and since it is controlled by a computer, highly accurate products with tight tolerances can be achieved.


Due to the wide variety of polymers and composite materials, strong technical expertise in polymer materials is crucial when processing peek plastic parts. For example, some plastics are brittle while others can be cut similarly to metals. The challenge with plastics lies in their diverse mechanical properties and behaviors during processing. Therefore, it is important to understand the polymer structure of PEEK when processing it.



Thermoplastic VS Thermosetting Plastics

When it comes to polymers, there are two fundamental types: thermoplastics and thermosetting plastics. Understanding which type of polymer you are working with is crucial because they have distinct reactions to heat and temperature. Thermoplastics can be repeatedly softened and made flexible as temperature increases, which means the polymer undergoes physical changes upon heating. They have the following characteristics:


  • Good resistance to creep

  • Can melt before transitioning into a gaseous state

  • Soluble in certain solvents

  • Expands in the presence of certain solvents

  • Allows for plastic deformation when heated


Thermosetting resins, on the other hand, become insoluble and infusible when heated or cured by chemical means, resulting in poor elasticity. They have the following characteristics:

  • High resistance to creep

  • Cannot be melted

  • Insoluble

  • Minimal expansion in the presence of solvents


Phenolic materials would be an example of thermosetting materials, while PEEK is an example of a thermoplastic material. Specifically, PEEK is considered a semi-crystalline, high-performance thermoplastic. This allows the machining peek to have sufficient elasticity for processing with various custom peek parts designs, strong mechanical properties that offer fatigue resistance and stress-cracking resistance, as well as a good structure for applications in bearings, wear, and structural applications.



Applications of PEEK CNC Machining

Peek is a semi-crystalline, high-temperature resistant plastic with excellent mechanical properties and chemical stability. Its main features include: high temperature resistance, tolerance, high strength, high rigidity and good wear resistance, allowing it to maintain stable performance under various harsh working conditions.

Because machining PEEK materials have excellent comprehensive properties, they can replace metal products, ceramic products, etc. in more and more fields. These include aerospace, automobiles, and electronic parts in the past, as well as current medical care, 3D printing, etc.

1. Automobile field

Parts made of machining PEEK plastic materials are the most widely used in the automotive field. The European market has a high demand for machining PEEK materials, especially parts near automobile engines, transmission parts, steering parts, including PEEK machine screws, PEEK gears, etc., all use PEEK materials. Some cars even contain dozens of PEEK parts.


2. IT industry

In order to achieve low cost and high utilization rate. There is an increasing demand for PEEK materials in the semiconductor industry.


3. Office machinery field

For example, PEEK bearings, bearing bushes, gears, chains, etc. all use PEEK materials. The main reasons include light weight and fatigue resistance. Good lubrication performance etc.


4. Medical industry

Now PEEK can be implanted into the human body through high-pressure sterilization, such as human ribs, skulls, etc., replacing the previous titanium metal. Of course, there are also PEEK denture parts used on teeth.


5. Analytical instruments

PEEK capillary tubes, PEEK connectors, etc. are now widely used in analytical instruments.




Custom CNC Machining PEEK Parts

Due to its excellent overall performance, Polyether Ether Ketone (PEEK) can replace traditional materials such as metals and ceramics in many special fields. The machining peek plastic's high temperature resistance, self-lubrication, wear resistance, and fatigue resistance make it one of the most popular high-performance engineering plastics today. The CNC machining peek is primarily used in aerospace, automotive, electronics, electrical, and medical device industries.


Aerospace Industry
Aerospace Industry
Automotive Manufacturing Industry
Automotive Manufacturing Industry
Industrial Sector Industry
Industrial Sector Industry
Medical Devices Industry
Medical Devices Industry



Flourish Legend specializes in the extrusion, rapid injection moulding, compression molding, and machining of specialty engineering plastic products, with extensive experience in the peek CNC machining (Polyether Ether Ketone) industry. We are experts in manufacturing finished PEEK machined parts and profiles, including rods, sheets, pipes, and films, and offer integrated solutions for the development, design, production, and sales of specialty engineering finished peek plastic parts and semi-finished profiles for various industries. We welcome you to provide us with drawings or samples, and Flourish Legend will provide you with tailored solutions.


Advantages of CNC Machining PEEK Materials Are as Follows

High Precision Machining

High Precision Machining: CNC (Computer Numerical Control) systems provide highly accurate cutting and machining, enabling machining peek plastic material to achieve precise dimensional and shape requirements. Compared to traditional machining methods, CNC machining offers higher precision and consistency.

Complex Shape Machining

Complex Shape Machining: Peek CNC machining allows for multi-axis machining, including three-dimensional contouring and curve carving. This means that complex shapes and intricate details can be achieved, such as patterns, holes, curves, and engravings.

Efficient Production

Efficient Production: custom CNC machining is highly automated, enabling continuous and efficient machining processes. Once programmed and set up, the same machining program can be quickly replicated, ensuring consistency and high efficiency in batch production.

Flexibility and Customization

Flexibility and Customization: CNC machining provides the advantages of flexibility and customization, allowing for personalized machining of PEEK machining materials according to specific requirements. By modifying machining programs and tool paths, customized machining of different shapes, sizes, and process requirements can be easily achieved.



Flourish Legend - One-stop Manufacturing Solutions Expert
Prototyping, Mold Manufacturing, Injection Molding, CNC Machining, Sheet Metal Manufacturing, Stamping six business capabilities.

ISO International Quality Management System

Equipped with ISO 9001 certificate, we are able to support your OEM/ODM production.

Quality Control

We will check color, appearnce and tolerance by qulity control at every step during manufacturing process.

Low & High Volume Manufacturing

Besides high-volume production, we can also provide good solutions for your low-volume production (MOQ》1) with prototyping process.

Competitive Price

Our continuous investments in equipment and QC systems help us to get higher efficiency and quality which decrease reject ratio and increase market competitiveness in delivery qualified parts on time.

Reliability and Stability

Our 24 hours | 3 shifts production systems help your parts get into markets quickly and steadily.

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