Sandvik Coromant Silent tools - application guide - Manual (Page 55)

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3. Turning
Case four: Spindle
The spindle production involves mainly internal processing and the
existing process included two operations – turning from both sides.
The customer experienced two issues: vibration and a need for a
simplified process. By implementing a Silent Tools boring bar of
5.3xBD, the turning could be performed from one side, saving time
for the customer.
Material E200 Boehler/ 18CrNiMo7
Machine Mazak integrex 300
Machine cost EURO 150
Component Spindle
Operation Internal boring
Reference Silent Tools
Adaptor C6-570-3C 32 159
Cutting head 570-DWLNL-32-08-LE
Insert WNMG 080408-PM GC4225
Cutting data
n, r/min
509 1146
D
m
mm (inch) 50 (1.97) 50 (1.97)
v
c
m/min (ft/min) 80 (262) 180 (590)
f
n
mm/r (inch/r) 0.1 (0.004) 0.15 (0.006)
AP mm (inch) 1 (0.039) 1 (0.039)
Tot. cycle time min 68.5 5.95
Tool life (no of comp.) 1 4
Productivity increase 1052%