METHOD AND PRESSING TOOLS FOR MAKING CUTTING INSERTS

摘要

A method of making cutting inserts includes laser engraving a mirror image of a surface of a green body in a first punch blank to form a first punch surface, pressing powder between the first punch surface and a second punch surface in an opening in a die to form the green body, and sintering the green body to form the insert. A pressing tool for making cutting inserts includes a first punch having a laser engraved punch surface with a mirror image shape of a first surface of a green body, a second punch having a second punch surface with a mirror image shape of a second surface of a green body, and a die having an opening which, with the first punch surface and the second punch surface, defines at least part of a die cavity, the first punch and the second punch being movably disposed in the die opening.