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Ball nose end mills

 

Radius tolerance:
Z1 (1 flute)
r ± 0,02 mm

Z2-4 (2-4 flutes)
r ± 0,005 mm

Geometry design
Diameter tolerance:

 

Z1 (1 flute)
d1 ± 0,04 mm

Z2-4 (2-4 flutes)
d1 ± 0,01 mm

without helix angle with helix angle

 

 

Torus end mills

 

Radius tolerance:
d1 ≤ 0,5 mm

– 0,025 mm

Geometry design
Diameter tolerance:

 

d1 > 0,5 mm

– 0,040 mm

without helix angle with helix angle 

 

 

End mills

 

End mill Diameter tolerance: d1 ≤ 0,5 mm

– 0,025 mm

Geometry design
End mills geometry design
d1 > 0,5 mm

– 0,040 mm

with helix angle

 

 

Duplex geometry

 

DUPLEX geometry
Duplex geometry
  • tmax = Maximum rest material resulting from radius deviation from R3D 
  • R3D= Radius to be programmed in CAM
  • r1 = Face radius
  • r2 = Tangential radius between face radius and circumference cutting edge 

 

 

Formulae for cutting data calculation

 

Formulae for cutting data calculation

 Speed/rpm Formulae Speed/rpm
 Cutting speed Formulae Cutting speed
 Feed speed Formulae Feed speed
 Feed per tooth Formulae Feed per tooth