Sandvik Coromant Silent tools - users guide - Manual (Page 30)

30
Recommended
clamping length
Entering angle close
to 90°
a
p
bigger than nose
radius
Internal turning
Reduce the risk of vibration:
• Choose the largest possible bar
diameter with the smallest
possible overhang.
• Use recommended clamping
length, minimum 4 x dm
m
.
• Ensure sufficient a
p
and f
n
to
avoid vibration due to friction
during cutting.
• An a
p
and f
n
which is too high
can cause vibration through tool
deflection.
• Inserts with positive basic
shape and positive geometry are
recommended to minimize tool
deflection.
• Use an entering angle close to 90°
to direct the cutting forces axially.
• Use an insert nose radius smaller
than the cutting depth.