An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a powder and a binder material. The blank includes an internal blank component and a coating coupled around at least a portion of the surface of the internal blank component. The internal blank component includes a top portion and a bottom portion. The internal blank component is substantially cylindrically shaped and defines a channel extending through the top portion and the bottom portion. The coating is a metal in some exemplary embodiments. The coating reduces the migration of the binder material into the blank thereby allowing the control of intermetallic compounds thickness within the bondline.
申请公布号
WO2012160444(A2)
申请公布日期
2012.11.29
申请号
WO2012IB01095
申请日期
2012.05.21
申请人
VAREL EUROPE S.A.S.;CUILLIER DE MAINDREVILLE, BRUNO;GOMEZ, WILLIAMS