Smart Dampers for Internal Boring
Features D Adopting a special damper mechanism to suppress chattering for large diameter bars with long overhang of L/D=5 to 8. D Replaceable heads enable a wide selection of positive and negative inserts. D Internal coolant supply improves chip evacuation and tool life.
E
C
Cutting Performance
Overhang Amount 6D Vibration during Machining
Overhang Amount 9D* Surface Roughness during Machining
D
Good
Good
Impossible
Good
v c = 100m/min
Acceleration 1.0m/s 2
Acceleration 0.8m/s 2
R
v c = 100m/min
Suppresses Chatter
Chatter Occurred
Impossible
Good
v c = 200m/min
S
Acceleration >10.0m/s 2
Surface Finish Ra11.6µm
Acceleration 0.5m/s 2
Surface Finish Ra3.0µm
Competitor's Product (With Anti-Vibration Mechanism)
Smart Damper
Smart Damper
Conventional Tool
Work Material: S45C(Work Dia. ø40 up) Holder: ø32 Shank Insert: TPMT160404N-SU Cutting Conditions: f =0.1mm/rev a p =0.2mm Dry
T
*Machining performed with 9D overhang was for anti-vibration performance evaluation only; to prevent tool deflection, use up to a maximum of 8D.
Smart Damper Combination Example
V
Indexable Head
Smart Damper Body
W
For Positive Inserts
For Negative Inserts
SCLC Type SCLP Type
DCLN Type
LF
SDUC Type SDQC Type
DDUN Type
S-SDB3240L320 S-SDB4050L410
Shank Dia.: ø32mm LF: 320mm Shank Dia.: ø40mm LF: 410mm
STUP Type
DTFN Type
Indexable heads can be selected to suit machining applications
SVUB Type SVQB Type
*Smart Damper TM is a registered trademark of BIG DAISHOWA Co., Ltd.
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