Общий каталог Sumitomo 2018 - 2019 - страница 32

CBN (Cubic Boron Nitride) SUMIBORON High hardness and heat resistance for cutting high hardness steel and hard cast iron. Long tool life with high-speed finishing of grey cast iron. In 1977, Sumitomo Electric Hardmetal successfully developed a revolutionary CBN sintered tool - SUMIBORON. The main component in SUMIBORON is Cubic Boron Nitride with a special ceramic binder sintered under super high pressure and temperature. As compared to other conventional tool materials, CBN has higher hardness and excellent heat resistance. Grades With these distinct characteristics, SUMIBORON can perform machining of hardened steel, high hardness cast iron and exotic metals where previously only grinding was done. Furthermore, excellent efficiency and longer tool life can also be achieved from high speed machining of cast irons. Characteristics Classifications Structure CBN Content Hardness (GPa) Grades Application Characteristics High 44 Carbide High carbon content. Structure consists of BN700 Mainly CBN Chilled cast iron strongly fused CBN grains. BN7000 grains fused Ni-Hard cast iron Suited to cutting cast iron, heat-resistant together BN7500 Heat-resistant alloy, Cast iron alloy, ultra-hard alloy, and other hard BNS800 Sintered ferrous alloy materials. BNC500,* BN1000 , BN2000, Alloy steel CBN grains are fused together strongly with Mainly CBN BN350,* BNX10, Case hardened steel a special ceramic binder. grains held BNX20, BNX25, Carbon tool steels Strong CBN binding force gives superior wear together with BNC2010, BNC2020 Bearing steel, Die steel resistance and toughness when cutting hardened a binder BNC100, BNC160, Ductile cast iron steel and cast iron. Low 21 BNC200, BNC300 *BNC500 can also be used with cast iron, while BN350 can also be used with sintered ferrous alloys. Grade Range Map Class Series Finishing ~ Light Cutting Medium Cutting Rough ~ Heavy Cutting Classification H01 H10 H20 H30 BNC2010 BNC2020 Coated SUMIBORON BNC100 BNC160 BNC200 BNC300 BNX10, BN1000 Uncoted BN2000 SUMIBORON BNX20 BNX25, BN350 Classification 01 10 20 30 Components Sintered Uncoted BN700, BN7000 SUMIBORON BN7500 Classification K01 K10 K20 K30 Coated BNC500 SUMIBORON BN7000, BN700 Uncoted SUMIBORON BN7500 BNS800 B7