Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 16

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 Uncoated SUMIBORON for Hardened Steel Machining B N1000 / BN2000 H Hardened Steel BN2000 ■ General Features An uncoated type of SUMIBORON that has a newly developed high-purity ceramic binder. Both fracture and wear resistance are combined to achieve a stable tool life in a wide variety of hardened steel machining. We offer a wide selection of tools starting with single- cornered types. BN1000 ■ Characteristics ● BN1000 ・ Superior high-speed machining grade with the highest wear resistance of any uncoated SUMIBORON. Sharpness Comparison Delivers excellent tool life in continuous cutting to light-interrupted cutting. ・ Improved fracture resistance while also emphasizing wear resistance. Improved hardness and heat resistance from the high-purity TiCN ceramic binder. ● BN2000 ・ General purpose grade suitable for typical hardened steel machining applications. Provides stable tool life in everything from continuous cutting to light-to-medium interrupted cutting. ・ High degrees of both fracture resistance and wear resistance. Compared to conventional grades, small cutting edge roundness Significant improvements in the performance of both by employing a high-purity ceramic binder. BN2000 Conventional Grade ・ Stable surface roughness by increasing sharpness (Figure on right). ■ Newly Developed High-Purity Ceramic Binder Conventional Grade BN1000/BN2000 Ceramic Binder Cracks High-Purity Ceramic Binder CBN Increased Wear/ Reduced Sharpness Impurities CBN The impurities contained in the ceramic binder for conventional With the newly developed high-purity grades brings about a strengthening in the sintered body and ceramic binder, the BN1000/BN2000 achieve a decrease in heat resistance, which becomes the cause of cracks toughness and improved heat resistance (chipping) and wear. by decreasing impurities to an extreme! L ■ Application Range ■ Recommended Cutting Conditions SUMIBORON 300 ● BN1000 ● BN2000 Cutting Speed vC (m/min) BN1000 Cutting Speed vc(m/min) Cutting Speed vc(m/min) 50 100120 150 200 250 300 50 80 100 120 150 200 250 300 200 BN2000 BNX25 BNX20 Feed Rate f D.O.C.ap Feed Rate f D.O.C. ap (mm/rev) (mm) (mm/rev) (mm) 100 BN350 0.03 to 0.15 0.03 to 0.2 0.03 to 0.2 0.03 to 0.3 * Coolant: Continuous Cutting Dry, Wet Interrupted Cutting Dry Interruption Continuous Light Interrupted Medium Interrupted Heavy Interrupted Smaller Impact Force on Cutting Edge Larger L16