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AssigneeKingdream Public Limited Company
InventorsHongping TIAN, Qiang LIU, Guanfu TU, Xiaobo LIU
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The disclosure relates to a polycrystalline diamond compact including a cemented carbide substrate and a diamond layer, with the diamond layer disposed at the top face of cemented carbide substrate, there are at least two continuous varying cambered convex ridges at the end face of the diamond layer, each cambered convex ridge extending from the edge of the end face to the center of end face, with the width of each continuous varying cambered convex ridge increasing gradually from the edge of the end face to the center of the end face. Both ploughing effect and the fracture drilling property of the PDC cutting face with each continuous varying cambered convex ridge are improved, the cutting resistance during drilling is reduced and thus the rate of penetration of the PDC bit is increased. A drilling bit with the polycrystalline diamond compact disposed at the end thereof is provided in the disclosure.
A polycrystalline diamond compact, comprising a cemented carbide substrate and a diamond layer disposed at a top face of the cemented carbide substrate, and there are at least two continuous varying cambered convex ridges at an end face of the diamond layer, each cambered convex ridge extending from the edge of the end face to the center of the end face, and the width of each cambered convex ridge increasing gradually from the edge of the end face to the center of the end face.
Dependencies are inferred from the claim text.