发明名称 METHODS OF TREATING HARDBANDED JOINTS OF PIPE USING FRICTION STIR PROCESSING
摘要 <p>A method for treating a wear reducing material welded to a surface of a tool used in a wellbore operation that includes friction stirring the wear reducing material into the surface of the tool is disclosed. Method for improving the properties of a wear reducing material on a tool are also disclosed.</p>
申请公布号 EP2334462(A4) 申请公布日期 2015.10.21
申请号 EP20090807268 申请日期 2009.08.13
申请人 SMITH INTERNATIONAL, INC. 发明人 KESHAVAN, MADAPUSI, K.;STEEL, RUSSELL, J.;ROTH, CARY, A.;ALSUP, SHELTON, W.
分类号 B23K20/12;B23K20/22;B23K20/227;B23K20/233;B23K101/20 主分类号 B23K20/12
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