PEEK machined components

PEEK Machining Overview

PEEK is a high performance, semi-crystalline, high temperature material. Besides PEEK Virgin, the most commonly modified PEEK material are, PEEK GF30, PEEK CF30, PEEK PVX, PEEK Black

PEEK shows the properties of high mechanical strength and high stiffness. Especially for the glass and carbon fiber filled PEEK, the fiber enhanced the elasticity modulus which means makes the reinforced plastic more stiffness. So the proper machining and heat treatment process must be needed to avoid machining failure.

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PEEK Machining Guide

PEEK Sawing
plastic sawing

Material 

Rotate Speed [rpm]

Circular Pitch

PEEK Virgin

3000

20~24

PEEK Modified

2400~2800

20~24

PEEK Drilling

Material 

Number of Teeth

Helix Angle

Approach Angle

Cutting Speed

[rpm]

Feed Force

[mm/r]

PEEK Virgin

Z2

25

90

50~200

0.1~0.3

PEEK Reinforced

Z2

25

100

80~100

0.1~0.3

Note: Only for Keward Plastics. Fro PEEK GF30, PEEK PVX, when the diameter is larger than 60mm, the material should be pre-heated.

PEEK Milling
plastic milling

Material 

Number of Teeth

Cutting Speed

[rpm]

Feed Force

[mm/r]

PEEK Virgin

Z2~Z4

250~500

0.1~0.45

PEEK Reinforced

Z2~Z4

80~150

0.05~0.4

PEEK Turning

Material 

Relief Angle

Approach Angle

Corner

Cutting Speed

[rpm]

Feed Force

[mm/r]

PEEK Virgin

6~8

0~5

45~60

250~500

0.1~0.5

PEEK Reinforced

6~8

2~8

45~60

80~150

0.1~0.5

Note: Only for Keward Plastics.

PEEK Heat Treatment

Material 

Heating

Keeping

Cooling

PEEK

3h heating to 120℃, then 4h heating to 220℃

1.5h/10mm thickness

cooling to 40℃ at speed of 20℃/h

Note: Only for Keward Plastics. The heat treatment above is a rough numbers, and only suit for the components which the thickness is less than 50mm. If the thickness is larger than 50mm, Please Send Us Email.