PEEK CNC Machining

Machining Peek:PEEK CNC Machining Services

SINCO-CNC is a professional CNC machining service company that is dedicated to providing high-quality PEEK CNC machining services. PEEK materials are one of the product lines that we have focused on developing for many years. Our PEEK materials have high-temperature resistance and exceptional material properties, maintaining their original performance at temperatures as high as 260 degrees Celsius, providing long-term stable performance support for your business.

  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining
  • PEEK CNC Machining

PEEK CNC Machining Services

Our machining services cover various processes, such as turning and milling, and we can customize any design of PEEK parts according to customer requirements, providing fully customized solutions that meet your business needs. Our CNC PEEK machining services have been widely used in various industries such as photovoltaics, aerospace, chemical engineering, military, and food, providing many customers with high-quality machining services and reliable PEEK parts.

PEEK: The Pyramid of High-Performance Engineering Materials

PEEK was first developed by ICI in 1977 and is currently produced and sold by VICTREX.

PEEK, or PolyEtherEtherKetone, has many excellent properties, such as high-temperature stability, corrosion resistance, mechanical strength, fatigue resistance, insulation, and wear resistance, making it a high-performance engineering plastic. PEEK is widely used in high-demand fields such as aerospace, medical, automotive, electronics, chemical, petroleum, and natural gas. Because of its outstanding properties and wide application, PEEK is considered the “pyramid of engineering plastics” in the plastic industry. Nowadays, PEEK raw materials are also being mass-produced in China.

Mechanical property

Project Test standard
 
Nnit Virgin PEEK GF30-PEEK CF30-PEEK LF30-PEEK
Tensile strength(23℃) ISO527 MPa 90 155 210 134
Bending strength(23℃) ISO 178 MPa 150 212 298 186
Compressive strength(23℃) ISO 604 MPa 118 215 240 150
Lzod impact strength (no notch) ISO 180/IU kJ/m2 51 40 32

Melting Point

Project Test standard Nnit Virgin PEEK GF30-PEEK CF30-PEEK LF30-PEEK
Melting point ISO 11357 343 343 343 343
Heat deflection temperature ISO 75-f 163 315 315 293
Continuous use temperature UL 74685 260 260 260 260
Coefficient of thermal expansion ASTM D696 10 -5℃ 4.7 2.2 1.5 2.2
Flammability rating UL 94 V-0@mm 1.5 1.5 1.5 0.75

 

Electrical Properties

Project Test standard Nnit Virgin PEEK GF30-PEEK CF30-PEEK LF30-PEEK
Dielectric strength IEC60243-1 kV/mm 18 19
Dielectric constant IEC60250 3.2 3.3
Surface resistivity IEC90093 Ω 10-15 10-15 5-10 6-10

 

Other Properties

Project Test standard
 
Nnit Virgin PEEK GF30-PEEK CF30-PEEK LF30-PEEK
Density ISO 1183 g/cm3 1.3±0.02 1.5±0.02 1.4±0.02 1.43±0.02
Rockwell hardness ISO 2039 HRR 118 119 121 108
Coefficient of friction ASTM D3702 0.30-0.38 0.38-0.46 0.28 0.18
Water absorption (25℃, 24 hours) ISO 62 % 0.15 0.11 0.06 0.06
Molding shrinkage (25-24℃) Thickness of 3mm,
flow direction under conditions of 170℃
% 1.2 0.4 0.1 0.3
Perpendicular to the flow direction
(larger after saturated crystallization)
% 1.5 0.8 0.5 0.5
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Introduction to PEEK Materials for CNC Machining

SINCO-CNC commonly uses four types of PEEK materials for CNC machining: Virgin PEEK, LF30-PEEK, GF30-PEEK, and CF30-PEEK.

Virgin PEEK

Virgin PEEK is a material with a light brown color and no added modified fillers. It can be FDA food-grade certified and has high-temperature resistance to steam, ethanol, and Y-rays. It is commonly used in medical, food equipment, and electronic instrument applications.

LF30-PEEK

LF30-PEEK is a light black-colored material that is formed by adding PTFE, graphite, and carbon fiber fillers. It has stronger wear resistance and is often used for bearing and transmission system components. Its superior friction properties, such as low friction coefficient, wear resistance, and high peak pressure limit, make it the best material for friction applications at this level.

Virgin PEEK

GF30-PEEK is a material with a light brown color that is reinforced with 30% glass fiber. It has better rigidity, creep resistance, and dimensional stability than Virgin PEEK, making it ideal for manufacturing structural parts. It can withstand fixed loads for long periods at high temperatures.

CF30-PEEK
CF30-PEEK

CF30-PEEK is a light black-colored material that is reinforced with 30% carbon fiber. It has better mechanical properties, such as higher elastic modulus, mechanical strength, and creep resistance, and is more wear-resistant than GF30. Plastic with carbon fiber reinforcement has 3.5 times better thermal conductivity and can dissipate heat faster from the bearing surface than unreinforced Virgin PEEK plastic.

4 Products Found.

The outstanding features of PEEK

High temperature

Can be used for a long time at temperatures up to 260°C.

Stability

Exhibits excellent chemical stability

Performance

Has high strength, high rigidity, and wear resistance, making it an excellent engineering plastic.

UL

Displays high flame retardancy and is difficult to ignite or self-ignite, making it an ideal flame retardant material.

Preprocessing

Before machining PEEK material, it is necessary to anneal it to reduce internal stresses. Otherwise, the high-speed rotating tool during the machining process may cause warping and deformation of the PEEK material. We recommend annealing at the following temperature and time: slowly heat the material to 150°C, hold for 2-3 hours, then heat up to 200°C and hold for 4 hours, and finally let it cool naturally. This can reduce internal stresses and improve the machinability of the material.

Preprocessing
Tool selection

Tool selection

For different PEEK materials, we need to use different tools. For pure PEEK material, we recommend using hard alloy tools for machining. For LF30-PEEK, GF30-PEEK, and CF30-PEEK materials with modifications, we recommend using PCD alloy tools for machining to ensure better machining results and longer tool life.

Use of cutting fluid

Cutting fluid can help cool and lubricate the tool and improve chip removal capacity during high-speed machining. When machining industrial parts, we can choose ordinary cutting fluid for machining. However, when machining medical-grade PEEK, we need to choose cutting fluids with good biocompatibility. If higher biocompatibility is required, we can use pure water or compressed air for cooling. This can ensure the biocompatibility and quality of PEEK products.

Use of cutting fluid

The Key Advantage of PEEK Material

PEEK CNC Machining
PEEK CNC Machining

PEEK material has many advantages. Firstly, it has excellent chemical resistance, so it can withstand the erosion of many strong acids, alkalis, and solvents. Secondly, its moisture absorption is very low, so it can maintain its physical properties even in high humidity environments. In addition, PEEK material also has wear resistance, so it can be used in high-friction environments. It also will not be affected by continuous exposure to hot water or steam, so it can be used in high-temperature environments. Moreover, certain grades of PEEK material have biocompatibility, which can be applied in medical and biological science fields. Finally, PEEK material also has resistance to biodegradation, so it can be used in applications that require long-term use.

Expansion Industries for PEEK CNC Machining

unmanned aerial vehicles (UAVs)
Unmanned Aerial Vehicles (UAVs)

PEEK plastic material, with its characteristics of lightweight, high temperature resistance, corrosion resistance, and high strength, has been widely used in the field of unmanned aerial vehicles.

In the structural design of drones, PEEK can be used to manufacture core components such as connectors, transmission devices, and energy storage device casings, which can greatly improve the flight efficiency and stability of unmanned aerial vehicles. Compared with other metal materials, PEEK can reduce the weight by 2-3 times, while the material can withstand ultra-high temperatures up to 260°C, which enables it to have longer endurance in complex environments.

Aotomotive
Aotomotive

In automotive manufacturing, PEEK can be used to produce high-temperature and high-pressure components such as engine covers, exhaust systems, and turbochargers. In addition, PEEK can also be used to manufacture critical components such as hydraulic pumps, clutches, transmission gears, and brake systems because of its ability to withstand high temperatures, high pressures, and chemical corrosion.

Medical Equipment
Medical Equipment

PEEK also plays an important role in the medical field. PEEK materials have many excellent properties, such as outstanding biocompatibility, chemical resistance, and mechanical performance, making it widely used in medical devices and orthopedic implants.

PEEK materials are commonly used in various surgical instruments, dental instruments, and orthopedic devices. Its high strength and light weight, combined with excellent chemical stability and biocompatibility, make it favored in the medical industry.

CNC turning PEEK parts
PEEK material processing, SINCO-CNC helps you achieve high precision and low deformation.

With over 15 years of experience in the machining and manufacturing of special plastics, SINCO-CNC can provide you with the expertise and quality you need. If you require to PEEK turning or milling parts production, please feel free to discuss your needs with us.

What is the temperature range of PEEK material?

The PEEK material has strong stability at high temperatures, and its usage temperature range can reach up to 260℃ and can even be used for a long time in high-temperature environments up to 300℃.

What about the chemical stability of PEEK material?

PEEK material has excellent chemical stability and can resist the erosion of various chemical solvents and corrosive substances, such as acids, alkalis, salts, and various organic substances.

How about the mechanical properties of PEEK material?

PEEK material has excellent mechanical properties, including high strength, rigidity, and wear resistance. In addition, PEEK material also has good flame retardancy, radiation resistance, and low friction coefficient.

Can PEEK material be CNC machined?

Yes, PEEK material can be CNC machined.

How difficult is the CNC machining of PEEK material?

Relative to other plastic materials, the CNC machining difficulty of PEEK material is higher. Preprocessing is required before processing, and the choice of tools should be reasonable.

What are the surface treatment methods for CNC machining of PEEK material?

Polishing treatment can be performed.

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