CUTTING TOOL INSERT

摘要

A polycrystalline diamond (PCD) compact and method for making the compact are provided. The method includes bringing a first PCD wafer and a second PCD wafer together at an interface in the presence of a bonding agent to form an unbonded assembly and bonding the wafers together at the interface at a pressure and temperature at which diamond is thermodynamically stable. The first PCD wafer is more thermally stable than the second PCD wafer.

主权项

1. A polycrystalline diamond compact comprising a first layer of polycrystalline diamond bonded to a second layer polycrystalline diamond, the first layer of polycrystalline diamond being more thermally stable and thinner than the second layer of polycrystalline diamond.