发明名称 |
Brazing methods for PDC cutters |
摘要 |
A method for a down hole cutting tool is disclosed, wherein the cutting tool includes a cutting element support structure having at least one cutter pocket to support a cutting element comprising a substrate and an ultrahard layer. The method includes inserting a base portion of the cutting element into the cutter pocket; locating a first braze alloy such that when heated the first braze alloy melts and fills a space in the cutter pocket between the cutting element and the cutting element support structure adjacent the ultrahard layer; locating a second braze alloy such that when heated the second braze alloy melts and fills a space in the cutter pocket between the cutting element and the cutting element support structure non-adjacent the ultrahard layer; and heating the first and second braze alloy such that they melt.
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申请公布号 |
US8360176(B2) |
申请公布日期 |
2013.01.29 |
申请号 |
US20100696706 |
申请日期 |
2010.01.29 |
申请人 |
SMITH INTERNATIONAL, INC.;ZHANG YOUHE;SHEN YUELIN;DENG HONG |
发明人 |
ZHANG YOUHE;SHEN YUELIN;DENG HONG |
分类号 |
E21B10/50;E21B10/62 |
主分类号 |
E21B10/50 |
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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