Invention Grant
US09138872B2 Polycrystalline diamond drill blanks with improved carbide interface geometries 有权
具有改善的碳化物界面几何形状的多晶金刚石钻头坯料

Polycrystalline diamond drill blanks with improved carbide interface geometries
Abstract:
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.
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