SCI 21-22 General Catalog

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

.0275

.0197

SV Type

.0118

LV Type

FV Type

.0039

0

.0119

.0039

.0079

FeedRate f (IPR)

*For hardened parts (above 50HRC), use a depth of cut below .0197".

■ Application Examples

Break Master FV

Finishing of Hardened Steel

Break Master SV

External Carburized Layer Removal

Tool Life = 300 pcs

Tool Life = 200 pcs

BNC200 (No Breaker)

BNC200 (No Breaker)

· 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

Tool Life = 100 pcs

L26

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