Общий каталог Sumitomo 2019 - 2020 - страница 1042

SUMIBORON vC (m/min)SpeedCuttingInterruption Strength Coated SUMIBORON for Hardened Steel Machining BNC2010 / BNC2020 Hardened Steel BNC2010 Trump Card for Longer Tool Life and Cost Reduction ■ General Features Provides improved machining accuracy and longer tool life compared to conventional Coated SUMIBORON by L combining newly developed CBN substrate and ceramiccoating. Exhibits excellent performance in high-precision and general cutting of hardened steel and enables reductions BNC2020 in machining costs. ■ Features ● BNC2010 · Grade for high-precision finishing requiring good surface roughness and dimensional tolerance. Ideal for high-precision machining thanks to excellent wear resistance. · Further maintains excellent surface roughness. Maintains excellent surface roughness thanks to coating with high notch wear resistance and CBN substrate. ● BNC2020 · General-purpose grade suitable for typical hardened steel machining applications. Achieves further stability in machining of a wide range of hardened steel components. · Achieves long tool life thanks to highly wear-resistant, highly adhesive coating and tough CBN substrate. Achieves long, stable tool life even in high-efficiency and interrupted machining. ■ CBN Substrate and Coating Structure of BNC2010 and BNC2020 BNC2010 BNC2020 TiN Layer TiN Layer Improved Wear TiCN Layer Resistance Special Multi-layered Coating TiCN Layer TiAlN Layer Improved WearResistance Reduced Notch Special Multi-layered Coating Wear TiCN Layer Special Multi-layered Coating Highly Adhesive Layer ImprovedAdhesion Strength High Wear Resistance Tough CBN CBN Substrate Substrate Combination of TiCN layer and special multi-layered coatings achieves excellent flank wear resistance Further stability is achieved with a TiAlN layer and a highly adhesive coating layer ■ Application Range ■ Recommended Cutting Conditions 300 BNC100 ● BNC2010 ● BNC2020 Cutting Speed vc (m/min) Cutting Speed vc (m/min) BNC2010 BNC160 120 150 200 250 300 50 100 150 200 220 200 BNC2020 BNC200 120100 Feed Rate f Depth of Cut ap Feed Rate f Depth of Cut ap(mm/rev)(mm)(mm/rev)(mm) BNC300 0.03 to 0.25 0.03 to 0.35 0.03 to 0.40 0.03 to 0.50 Cutting Oil: Continuous Cutting Dry, Wet Interrupted Cutting Dry Continuous Light Interrupted Medium Interrupted Heavy Interrupted Small Impact Force on Cutting Edge Large L12