
Characteristics of Coated Grades New-Generation Coated SUMIBORON Released High High Precision Machinning New-Generation Coated SUMIBORON BNC2010 General and High Efficiency Cutting High Speed Cutting BNC2020 BNC100High Precision Machinning BNC160 General and High Efficiency Cutting Cutting Speed BNC200 Heavy Interrupted Cutting BNC300 Fracture Resistance Excellent ■ Characteristics of Grades BNC2010 CBN Content : 50 to 55% Newly developed CBN substrate with high crater wear resistance Grain Size : 2μm Hardness HV : 30 to 32GPa coated with special multi-layered TiCN, which exhibits excellent TRS Main Coating : 1.10 to1.20GPa notch wear resistance. Components : Multi-layered TiCN Coating Thickness : 1.5μm Ideal for finishing of hardened steel requiring excellent accuracy or surface roughness. Able to stably maintain 1.6S finishing. High Precision Machinning BNC2020 CBN Content : 70 to 75% Newly developed tough CBN substrate with highly wear-resistant TiAlN Grain Size : 5μm coating. Provides improved stability by inserting a highly adhesive layer Hardness HV : 34 to 36GPa between the substrate and the TiAlN layer. TRS : 1.20 to 1.30GPa Main Coating : Multi-layered TiAlN Components Coating Thickness : 1.5μm Ideal for general machining including finishing and interrupted cutting as well as high-efficiency machining such as carburized layer removal. General and High Efficiency Cutting BNC100 CBN BNC160 CBN BNC200 CBN BNC300 CBN Content : 40 to 45% Content : 60 to 65% Content : 65 to 70% Content : 60 to 65% Grain Size : 1μm Grain Size : 3μm Grain Size : 4μm Grain Size : 1μm Hardness HV : 29 to 32GPa Hardness HV : 31 to 33GPa Hardness HV : 33 to 35GPa Hardness HV : 33 to 35GPa TRS : 1.05 to 1.15GPa TRS : 1.10 to 1.20GPa TRS : 1.15 to 1.25GPa TRS : 1.15 to 1.25GPa Main Coating Main Coating Main Coating Main Coating Components : TiAlN/TiCN Components : TiAlN/T iCN Components : TiAlN Components : TiAlN Coating Coating Coating Coating Thickness : 2.0μm Thickness : 2.0μm Thickness : 2.0μm Thickness : 1.0μm High Speed Cutting High Precision Machinning General and High Efficiency Cutting Heavy Interrupted Cutting ■ Recommended Cutting Conditions L SUMIBORON Cutting Speed vc(m/min) Feed Rate(mm/rev) Depth of Cut(mm) Grade Grade 50 100 (120) 150 (180) 200 (220) 250 300 0 0.1 0.2 0.3 0.4 0.5 0.03 0.25 BNC2010 BNC2010 0.03 0.35 0.03 0.40 BNC2020 BNC2020 0.03 0.50 0.03 0.20 BNC300 BNC300 0.03 0.30 0.03 0.20 BNC100 BNC100 0.03 0.30 0.03 0.20 BNC160 BNC160 0.03 0.35 0.05 0.35 BNC200 BNC200 0.05 0.50 L15