Page 417 - Ceratizit Catalog

MaxiMill HFC system
B90
Customer benefit

Minimum vibration

The light cutting geometry and the very positive angle allow
for reduced vibration of the milling system. The cutting forces
are mainly in axial direction. Even with long tool overhangs the
stress on the machine spindle is minimised.

Systems for high feed rates with approach angle k = 15°
r
The axial forces produced are directed towards the machine
spindle:

F << F a
r

F = axial force on the spindle
a
F = radial force on the spindle
r
F = resulting force on the spindle
res

F res

○ Small approach angle k
r
k r between 15 and 20°!
h ≈ f x sin k r
m
z
○ Low to mediume chip thickness h m
v f
h m The smaller the approach angle, the lower the medium chip thickness.

k r
f z ○ High feed rate per tooth f z
In order to reach a regular medium chip thickness, the feed rate per tooth
has to be increased.

Thanks to the small approach angle reducing chip thickness, high feed per tooth and high metal removal rates are
possible, even with small depths of cut.

Milling / Face milling