发明名称 |
CUTTING ELEMENTS HAVING CUTTING EDGES WITH CONTINUOUS VARYING RADII AND BITS INCORPORATING THE SAME |
摘要 |
A cutting element is provided having a substrate and an ultra hard material cutting layer over the substrate. The cutting layer includes a surface portion for making contact with a material to be cut by the cutting element. The surface portion in cross-section has a curvature that has a varying radius of curvature. A bit incorporating such a cutting element is also provided. |
申请公布号 |
US2014041948(A1) |
申请公布日期 |
2014.02.13 |
申请号 |
US201313958445 |
申请日期 |
2013.08.02 |
申请人 |
SMITH INTERNATIONAL INC. |
发明人 |
SHEN YUELIN;ZHANG YOUHE;JANSSEN MICHAEL |
分类号 |
E21B10/567 |
主分类号 |
E21B10/567 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|