Sandvik Coromant Silent tools - users guide - Manual (Page 5)

5
4 x dm
m
3 x dm
m
3 x dm
m
6 x dm
m
5 x dm
m
5 x dm
m
10 x dm
m
5 x dm
m
* 5 x dm
m
*
14 x dm
m
7 x dm
m
7 x dm
m
Maximum recommended overhang
Internal turning is very sensitive to vibration. Minimize
the tool overhang and select the largest possible tool
size in order to obtain the best possible stability and
accuracy.
• For internal turning with steel dampened boring bars,
the first choice is bars of type 570-3C.
• For grooving and threading where the radial forces is
higher than in turning, the recommended bar type is
570-4C.
Bar type
Steel boring bars
Turning Grooving Threading
Carbide boring bars
Steel dampened bor-
ing bars
Carbide reinforced
dampened boring bars
The table below shows the maximum recommended
overhang for different bar types.
* 570-4C bars