Positive relief forming of polycrystalline diamond structures and resulting cutting tools

摘要

Embodiments of the invention relate to methods of making articles having portions of polycrystalline diamond bonded to a surface of a substrate and polycrystalline diamond compacts made using the same. In an embodiment, a molding technique is disclosed for forming cutting tools comprising polycrystalline diamond portions bonded to the outer surface of a substrate.

主权项

1. A method of making a polycrystalline diamond (“PCD”) structure, the method comprising:
providing a substrate having a surface; positioning at least one diamond material flute volume including at least one diamond material tube including diamond particles, the at least one diamond material tube in contact with a portion of the surface of the substrate; and subjecting the substrate and the at least one diamond material flute volume to a high-pressure/high-temperature (“HPHT”) process effective to sinter the diamond particles to form a PCD flute volume and bond the PCD flute volume.