480 Каталог SUMITOMO 2018 Инструмент металлорежущий Пластины Резцы Фрезы Сверла Стр.L8

Каталог SUMITOMO 2018 Инструмент металлорежущий Стр. L8 0480 Lab2u

SUMIBORON Uncoated SUMIBORON BN1000/BN2000 S Hardened Steel Uncoated CBN grades for hardened steel machining I General Features A new 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. Available in single corner and multi-corner type inserts. Characteristics BN1000 - Superior high-speed machining grade with the highest wear resistance of any uncoated SUMIBORON. 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. Significant improvements in the performance of both by employing a high-purity ceramic binder. - Stable surface roughness by increasing sharpness (Figure on right). Sharpness Comparison BN2000 Conventional Grade t <3 0 U,l' I til 1)1 1 It Compared to conventional grades, small cutting edge roundness I Newly Developed High-Purity Ceramic Binder Conventional Grade Ceramic Binder The impurities contained in the ceramic binder for conventional grades cause a weakening in the sintered body and a decrease in heat resistance, which becomes the cause of cracks (chipping) and wear. BN1000 / BN2000 High-purity Ceramic Binder With the newly developed high-purity ceramic binder, the BN1000 / BN2000 achieve toughness and improved heat resistance by decreasing impurities to an extreme I Recommended Application Range Continuous Cutting Interrupted Cutting 300 200 100 Interruption Strength Frequency of Interruption BN1000 BNX20 BNX25 BN2000 BN350 light medium heavy -25% 50% 75% 100% I Cutting Conditions BN1000 vc (m/min) f doc 100 150 200 250 300 (mm/rev) (mm) 120 I -1 0,03-0,15 0,03-0,2 BN2000 vc (m/min) 50 100 150 200 250 f (mm/rev) d oc (mm) 80 120 0,03-0,2 0,03-0,3 k Coolant ... Continuous cutting: Dry or Wet Interrupted cutting: Dry L8