SUMIBORON Depth of Cut ap (mm) SUMIBORON Break Master FV Type / LV Type / SV Type ■ Features ● One-use SUMIBORON insert with chipbreaker. SV type is ideal for carburised 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. L ● Unique chipbreaker design can be applied to both hardened and non-hardened parts with effective chip control. ● The SV Type lineup includes Coated SUMIBORON BNC2010/ BNC160 for good wear resistance and BNC2020/BNC200, which enables high efficiency machining. ● FV Type and LV Type lineup include Coated SUMIBORON BNC2020/BNC200 for general purpose, BNC2010/BNC160 for good wear resistance and SUMIBORON BN2000 also for general purpose. ■ Application Range 0.7 0.5 SV Type 0.3 LV Type 0.1 FV Type 0 0.1 0.2 0.3 Feed Rate f (mm/rev) *For hardened parts (above 50HRC), use a depth of cut below 0.5mm. ■ Application Examples External Carburized Layer Removal Break Master SV Type Finishing of Hardened Steel Break Master FV Type Tool Life = 200 pcs Tool Life = 300 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. Tool Life = 200 pcs · Improved chip control for internal diameter machining Tool Life = 300 pcs Competitor CBN (with chipbreaker) Work Material: SCr420 Carburised Steel (Shaft) Work Material: Carburised Steel 60HRC (Automotive Component) Tool Cat. No.: 4NC-CNGG120408N-SV (BNC200) Tool Cat. No.: 2NC-CCGT060204N-FV (BNC200) Cutting Conditions: vc=150m/min, f =0.15mm/rev Cutting Conditions: vc=80m/min, f =0.08mm/rev ap = 0.5mm, 2 Passes Wet ap=0.15mm Wet Tool Life = 100 pcs L26