| 发明名称 |
CUTTING ELEMENTS WITH IMPACT RESISTANT DIAMOND BODY |
| 摘要 |
Cutting elements include a diamond-bonded body attached with a substrate. The substrate has a coercivity of greater than about 200 Oe, and has a magnetic saturation of from about 73 to 90. The diamond-bonded body has a compressive stress at the surface of greater than about 0.9 GPa after heat treatment, and greater than about 1.2 GPa prior to heat treatment. |
| 申请公布号 |
WO2017015311(A1) |
申请公布日期 |
2017.01.26 |
| 申请号 |
WO2016US43026 |
申请日期 |
2016.07.20 |
| 申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
BELNAP, John Daniel;FANG, Yi;FRANCE, Michael David;DENBOER, David P.;ZHANG, Haibo |
| 分类号 |
E21B10/46;E21B10/50;E21B10/54 |
主分类号 |
E21B10/46 |
| 代理机构 |
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代理人 |
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