Synthetic polycrystalline diamond

Synthetic polycrystalline diamond (PCD) and synthetic diamond polycrystalline diamond and carbide composite blade (PCD / CC)
PCD is at high temperature (about 1800 ℃), pressure (5 ~ 6MPa), the use of cobalt and other metal binding agent to a number of polycrystalline diamond crystal powder

polycrystalline material, although slightly lower than the hardness of a single crystal diamond, but it is randomly oriented polymeric diamond grains, an isotropic

, Can be used as a cutting tool sharpening arbitrarily oriented, without natural diamond that must be selected as the best cleavage plane as a rake. In cutting, the

cutting edge is very sensitive for accidental damage, wear resistance is also strong, long stay sharp cutting edges,

Can be used when a high processing speeds and large depth of cut (to eat deep), the service life is generally higher than WC-based cemented carbide tool 10 to 500

times, and because the PCD conductive metal binding agent, such PCD easy to cut to shape, and is a rich source of raw materials,

Its price is only natural diamond fraction of a few tenth to ten, has become a traditional WC-based cemented carbide cutting tools, high-performance alternatives.
PCD inserts to improve the toughness and weldability in the cemented carbide substrate, sintered or pressed on the surface of 0.5 ~ 1mm thick layer of the composition

of PCD diamond composite blade (PCD / CC). PCD / CC welding or machine folder available way of making knives. Due to its good weldability, regrinding

Easy, low cost, it is widely used. Hereupon, PCD and PCD / CC sharp cutting edge of the tool and are not as good surface quality single crystal diamond, while its

workability is poor, the grinding ratio is small, it is difficult according to the geometry of any head shape, has not yet

Easy to manufacture with chipbreakers indexable end mills and other geometric shapes and complex products.