CBN has a hardness second only to diamond, yet its thermal and chemical stability is superior to diamond. It is recognized as one of the most desirable superabrasives for grinding superalloy and ferrous materials. Its insolubility in iron, nickel and related alloys make it ideal for use in machining steel. It binds well with metals and is often used in tool bits of cutting tools. It is also used for grinding with softer binders such as resin, porous ceramics and soft metals. Providing longer life and minimal wear, CBN allows machine tools to operate longer with improved consistency, producing better finishes while avoiding thermal damage.
Bonding symbols: (R) Resin (V) Vitrified (SL) Single Layer (M) Metal
Products
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CBN-NB30 (R) Nature black, irregular shape monocrystalline with good self-sharpening. Comprises CBN-NB306 w/60% nickel cladding. ideal for resin bond tools. |
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CBN-NB40 (R) (V) Black, angular shaped monocrystalline with medium strength and thermal stability. Its shape provides low grinding powder. |
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CBN-NB52 (V) Black, semi-blocky shape. Its shape increase grinding efficiency via balance of fracture strength & sharpness. |
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CBN-HZ35 (R) (V) (SL) Hazel, blocky monocrystalline with rough surface texture, macro fractures. Suitable for electroplated tools. |
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CBN-HZ50 / CBN-HZ50a (V) (SL) (M) Hazel, semi-blocky monocrystalline with medium strength and high thermal stability. Its shape and unique macro fracture characteristics make it ideal for low grinding power applications. Suitable for vitrified and metal bond tools. HZ50a (right image) |
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CBN-BR55 / CBN-BR55a (R) (V) (M) Brown, irregular monocrystalline with sharp edges, truncated tetrahedral shape, high strength and thermal stability. Used in vitrified bond grinding, metal bond and heavy duty resin bond applications BR55a(right image) |
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CBN-B60 / CBN-B60a (V) (M) Black, high thermal stability monocrystalline. Medium fracture strength and breakdown characteristics. B60a (right image) |
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CBN-70 /CBN-70a (V) (M) Golden, tough blocky monocrystalline. High fracture strength and thermal stability. 70a (right image) |
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CBN-85 (M) Gray, extremely tough product with angular shape and rough surface texture. Its unique nanostructure provides for high removal rates with good surface finish and extended tool life. |
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COATINGS: All the above CBN products are available in 60-65% Ni coatings for resin bond. |
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CBN-HZ50, CBN-BR55, CBN-B60, CBN-70 Available in Ti coatings for metal bond applications. |
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CBN Material Size Availability
CBN Strength vs Sharpness
CBN Particle Strength
