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Machining guidelines - Sawing

What cutting speeds and tooth pitches are recommended for our thermoplastics: an overview.

In the case of sawing operations, more attention must be paid to thermal expansion of the material concerned. This means that suitable, straight-set saw-blades should be used: care must also be taken to ensure that adequate chip removal is assured.

Depending on whether a band or a circular saw is used, different machining guidelines must be complied with.

Machining guidelines band saws

bearbeitungsrichtlinien-bandsaege
 vt
 Setting AngleRake AngleCutting Speed m/minTooth Pitch mm
PVC 30 - 40 0 - 5 1200 3
PP, PE-HD 20 - 30 2 - 5 500 3 - 8
ABS 15 - 30 0 - 5 300 2 - 8
PMMA 30 - 40 0 - 5 1200 3
PVDF 20 - 30 5 - 8 300 - 500 2 - 5
PET 30 - 40 0 - 5 bis 3000 2 - 8
POM 20 - 30 0 - 5 500 - 800 2 - 5
ECTFE 20 - 30 2 - 5 500 3 - 8
PC, PPE 15 - 30 5 - 8 300 - 500 2 - 8
PEEK 15 - 30 0 - 5 500 - 800 3 - 5
PSU 15 - 30 0 - 4 500 2 - 5
PES 15 - 30 0 - 4 500 2 - 5
PEI 15 - 30 0 - 4 500 2 - 5
GF/mod 15 - 30 10 - 15 200 - 300 3 - 5

Note:

  • Metalloid cutting tools should sometimes be preheated up to 120 °C
  • Use only pure water with liquid cooling (tension cracks may accur)
  • Amorphous materials should be annealed (do not use oily cooling agents)

Machining guidelines circular saws

 vt
 Setting AngleRake AngleCutting Speed m/minTooth Pitch mm
PVC 5 - 10 0 3000 - 4000 3 - 5
PP, PE-HD 20 - 30 6 - 10 2000 3 - 8
ABS 5 - 10 0 - 5 1000 2 - 5
PMMA 5 - 10 0 1500 - 2000 3 - 5
PVDF 5 - 10 0 - 10 1000 - 2500 2 - 5
PET 10 - 15 0 - 15 bis 3000 2 - 5
POM 5 - 10 0 - 10 1000 - 2500 2 - 5
ECTFE 20 - 30 6 - 10 2000 3 - 8
PC,PPE 15 - 30 5 - 8 1800 - 2500 2 - 8
PEEK 10 - 15 0 - 15 1800 - 2500 2 - 5
PSU 10 - 15 0 - 15 2000 2 - 5
PES 10 - 15 0 - 15 2000 2 - 5
PEI 10 - 15 0 - 15 2000 2 - 5
GF/mod 15 - 30 10 - 15 500 - 1500 3 - 5

Note:

  • Metalloid cutting tools should sometimes be preheated up to 120 °C
  • Use only pure water with liquid cooling (tension cracks may accur)
  • Amorphous materials should be annealed (do not use oily cooling agents)

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