CBN - SUMIBORON Break Master FV / LV / SV
■ Features ● One-use CBN - SUMIBORON insert with chipbreaker. SV type is ideal for carburized layer removal, while FV and LV types are ideal for hardened steel machining. ● Chipbreaker incorporated on the CBN cutting edge to maintain chip control capabilities throughout the machining process. ● Unique chipbreaker design can be applied to both hardened and non-hardened parts with effective chip control. ● SV lineup includes Coated CBN - SUMIBORON BNC2010/ BNC160 for good wear resistance and BNC2020/BNC200, which enables high efficiency machining. ● FV and LV lineup include Coated CBN - SUMIBORON BNC2020/BNC200 for general purpose, BNC2010/BNC160 for good wear resistance and CBN - SUMIBORON BN2000 also for general purpose.
L
■ Application Range
FV
For Finishing
.028
.016
Excellent chip evacuation under nishing conditions with depth of cut at .008” or below
SV
45°
.020
FV
LV
For Light Cutting
.012
LV
.024
Excellent chip evacuation with depth of cut at .012” or below
.002
FV
30°
.004
LV
-35°
0
.004
.008
.012
Feed Rate f (IPR)
SV
For Carburized Layer Removal
.033
Ideal for carburized layer removal Eliminates choked stoppages and dimensional defects
.006
SV
30°
-35°
FV / LV / SV Cutting Edge Speci cations Notation Type Cutting Edge Speci cation Identi cation Code Series
α 0°
W Honing
Negative land width Negative land angle S 0 0 5 3 5 Cutting edge speci cation identi cation code Rake Face Negative Land Width W
Q S00535 S01235
FV LV SV
N-FV N-LV N-SV
0 .002 .005
Yes Yes Yes
With Chipbreaker
35° 35°
Cutting Edge ShapeT: Negative Land
Negative Land Angle α
CBN
S: Negative Land + Honing
Honing
Example: S00535 35°/.002” Negative Land with Honing
Flank
■ Application Examples
Break Master FV
Finishing of Hardened Steel
Break Master SV
External Carburized Layer Removal
BNC200 (No Breaker) Tool Life = 300 pcs
BNC200 (No Breaker) Tool Life = 200 pcs
· No constant stoppages or incorrect part dimension problems and the chips are small. · Double the tool life of competitors' CBN.
· Improved chip control for internal diameter machining
Tool Life = 300 pcs
Tool Life = 200 pcs
Competitor CBN (with chipbreaker)
Part Material: Carburized Steel 60HRC (Automotive Component) Tool Cat. No.: 2NC-CCGT21.51FV (BNC200) Cutting Conditions: v c = 265 SFM, f = .0031 IPR a p = .0059” Wet
Part Material: Low Alloy Steel Carburized Steel (Shaft) Tool Cat. No.: 4NC-CNGG432SV (BNC200) Cutting Conditions: v c =500 SFM, f = .0059 IPR a p = .0197”, 2 Passes Wet
L26
Tool Life = 100 pcs
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