| 摘要 |
A cutting insert is formed by making a body (e.g., carbide) which includes a chip face having an outer peripheral edge. The chip face includes a complex chip breaker structure, and a recess disposed between the edge and the chip breaker structure and spaced inwardly from the edge. The recess is filled with a powder of hard material (e.g., diamond or cBN) which is then transformed into a hard body under high pressure and heat conditions. The portion of the base disposed between the edge and the hard body is sufficiently thick to support the body during that pressing step. Then, some or all of that portion is ground away. |
