Sumitomo - Полный каталог инструмента - 2016 EN
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CBN (Cubic Boron Nitride)
SUMIBORON
High hardness and heat resistance for cutting high hardness steel and Grades
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.
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 Structure CBN Content Hardness (GPa) Grades Application Characteristics
Classifications High 44 BN700 Carbide High carbon content. Structure consists of
Chilled cast iron strongly fused CBN grains.
Mainly CBN BN7000 Ni-Hard cast iron Suited to cutting cast iron, heat-resistant
grains fused Heat-resistant alloy, Cast iron alloy, ultra-hard alloy, and other hard
together BN7500 Sintered ferrous alloy materials.
Mainly CBN BNS800 Alloy steel CBN grains are fused together strongly with
grains held Case hardened steel a special ceramic binder.
together with BN500,* BNC500,* Carbon tool steels Strong CBN binding force gives superior wear
a binder BN1000 , BN2000, Bearing steel, Die steel resistance and toughness when cutting hardened
BN350,* BNX10, Ductile cast iron steel and cast iron.
BNX20, BNX25,
BNC2010, BNC2020
BNC100, BNC160,
Low 21 BNC200, BNC300
*BN500 and 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 H30
Hardened H01 H10 H20
Steel Coated New BNC2010 BNC2020 BNC300
SUMIBORON
New
BNC100 BNC160
BNC200
Uncoted BNX10,BN1000 BN2000
SUMIBORON
10 BNX20
BNX25,BN350
Sintered Classification 01 20 30
Components
Uncoted BN700, BN7000
SUMIBORON
BN7500
Classification K01 K10 K20 K30
Coated BNC500 BN7000,BN700
SUMIBORON BN7500
Cast Iron Uncoted
SUMIBORON
BNS800
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