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Polycrystalline Products
 Abrasion resistance and toughness are the two most important
properties in assessing the efficiency of cutting tool materials.
Abrasion resistance is primarily a function of hardness, and in this
respect diamond and cubic boron nitride (CBN) are superior to all
other known materials. As this also applies to polycrystalline diamond
and CBN-based composites, the wear characteristics of these materials
are also unequalled.
PCD or PCBN ?
PCD tooling is usually restricted to workpiece materials (which have no affinity with
carbon) and where the cutting temperature does not exceed 700deg.C. Typical
examples would include non-ferrous metals, wood, and
plastics where PCD competes mainly with tungsten carbide.
PCBN is thermally stable up to 1200deg.C. As a result, extreme temperatures,
such as occur when machining hard ferrous metals, do not pose difficulties.
Click for more information on PCD or PCBN products
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