Sandvik Coromant Silent tools - application guide - Manual (Page 54)

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3. Turning
Case three: Bearing case, flanged
The customer struggled with vibration and asked Sandvik Coromant
for a productive solution. By implementing an A570-3C D32 27-40
boring bar, one of the two boring operations was removed and the
productivity could be increased substantially. One comment from
the customer:
"Not only did the bar silence my boring operation. It also silenced all
the people in the workshop who told me that the Sandvik Coromant
tool would not work."
Material CMC 02.1
Machine Dainichi
Component Bearing case, flanged
Operation Rough boring
Reference Silent Tools
Adaptor A570-3CD3227-40
Cutting head SL-PTFNL-40-16HP
Insert TNMG 332-QM GC4215
Cutting data
n, r/min
227 340
D
m
mm (inch) 94 (3.7) 94 (3.7)
v
c
m/min (ft/min) 67 (220) 99 (325)
f
n
mm/r (inch/r) 0.36 (0.014) 0.41 (0.016)
AP mm (inch) 3.2 (0.125) 3.2 (0.125)
Tot. cycle time, min 28 15
Tool life (no of comp.) 3 8
Productivity increase 132%