Abrasive bodies
OwnerHenry B. Dyerinventor
Life of this patent
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Abstract
An abrasive body which comprises a cubic boron nitride compact bonded to a substrate. The compact has intergrowth between the cubic boron nitride particles which provides it with good thermal conductivity and has major surfaces on each of opposite sides, the one surface being bonded to the substrate and the other surface presenting a cutting edge. The substrate has a coefficient of thermal conductivity at least four times lower than that of the compact. The substrate is preferably made of aluminium oxide, Syalon or zirconia.
Claims10
An abrasive body comprising a cubic boron nitride compact having major surfaces on each of opposite sides thereof, the one surface being bonded to a substrate, and the other surface presenting a cutting edge, the compact comprising a first phase of a polycrystalline mass of intergrown cubic boron nitride particles and a second bonding phase and the substrate having a coefficient of thermal conductivity at least four times lower than that of the compact.
Dependencies are inferred from the claim text.