POLYCRYSTALLINE DIAMOND DRILL BLANKS WITH IMPROVED CARBIDE INTERFACE GEOMETRIES

摘要

A cutting element and a method of making the superabrasive cutter are disclosed. The cutting element has a substrate and a superabrasive layer. The substrate has an inner face and an annular face. The inner face may have a center. The annular face may have a periphery. A superabrasive layer attaches to the substrate along the inner face and the annular face, wherein the inner face slopes outwardly and upwardly from the center at an angle ranging from between about 1° and about 7° from horizontal.

主权项

1. A cutting element, comprising:
a substrate having an inner face and an annular face, wherein the inner face has a center, the annular face has a periphery; and a superabrasive layer attaching to the substrate along the inner face and the annular face, wherein the center of the inner face slopes outwardly and upwardly from the center to the periphery at an angle ranging from between about 1° and about 7° degrees from horizontal.