发明名称 CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS AND RELATED METHODS
摘要 Cutting elements, earth-boring drill bits having such cutting elements and related methods are described herein. In some embodiments, a cutting element for an earth-boring tool may include a diamond table having an indentation in a cutting face thereof and a shaped feature in a substrate at the interface between the diamond table and the substrate, the shaped feature corresponding to the indentation in the cutting face of the diamond table. In further embodiments, a cutting element for an earth-boring tool may include a sacrificial structure positioned within an indentation in a diamond table. In additional embodiments, a method of forming a cutting element may include positioning a sacrificial structure in a mold, positioning a powdered precursor material over the sacrificial structure, and pressing and sintering the powdered precursor material to form a diamond table having an indentation in a cutting face formed by the sacrificial structure.
申请公布号 US2011259642(A1) 申请公布日期 2011.10.27
申请号 US201113092396 申请日期 2011.04.22
申请人 ELEMENT SIX (PRODUCTION) (PTY) LTD.;BAKER HUGHES INCORPORATED 发明人 DIGIOVANNI ANTHONY A.;LYONS NICHOLAS J.;HALE MATTHEW S.;LIVERSAGE JOHN H.
分类号 E21B10/56;B24D18/00;E21B7/00;E21B10/55 主分类号 E21B10/56
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