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 |
US2007131458(A1) |
申请公布日期 |
2007.06.14 |
申请号 |
US20060638934 |
申请日期 |
2006.12.13 |
申请人 |
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发明人 |
SHEN YUELIN;ZHANG YOUHE (.;JANSSEN MICHAEL |
分类号 |
E21B10/36 |
主分类号 |
E21B10/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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