| 摘要 |
<p>A superabrasive compact cutting element, for example, an insert utilized in shear cutter bits. The cutting elements include a layer of superabrasive materials that is provided with different shapes and positions relative to the substrate in order to enhance the abrasion resistance performance of the cutting element. The cutting element includes a top, bottom and peripheral surface. The cutting element further includes at least one superabrasive material portion comprising polycrystalline diamond (PCD) or cubic boron nitride (CBN), a substrate supporting the at least one superabrasive material portion, and an interface where the at least one superabrasive material portion and the substrate are joined. The interface slopes downwardly with a slope angle of less than about 40° and/or the cutting element has a longitudinal thickness of the at least one superabrasive material portion measured along a peripheral surface of the cutting element in a longitudinal direction greater than about 3 mm.</p> |
