Metal-cutting tools Catalogue

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Information about Microbor CBN
www.microbor.com Metal-cutting tools
What is CBN based composite?
The CBN grain size and grain percentage strongly influence composite operating properties, as well
as binding material properties.
NCBN structure CBN structure
Ceramic binding Metallized binding
Cubic boron nitride is the second in hardness (after diamond) synthetic material to be made under
high pressure and temperature. Historically, CBN was developed to replace artificial diamond in
processing of hard and superhard materials containing carbon (chilled cast irons, tempered steels,
etc.), but with improved composite properties. At the moment, CBN is also used in machining of
such materials as manganese steels, carbon-filled plastic, siliconised graphite and even tungsten
carbide.
Microbor CBN distinctive feature is its higher impact load resistance. This feature is determined by
both properties of initial CBN micropowder and by composite synthesis process optimally matched.
And we succeeded in preserving such properties of traditional CBN as high microhardness and heat
resistance.
The newest development of Microbor is unique composite based on nano-CBN. The distinctive feature
of NCBN tools is higher wear resistance, as well as the substantial advantage when machining such
materials as cast tungsten carbide, stellite and other hard and abrasive materials.