CUTTING ELEMENTS LEACHED TO DIFFERENT DEPTHS LOCATED IN DIFFERENT REGIONS OF AN EARTH-BORING TOOL AND RELATED METHODS
摘要
Earth-boring tools may comprise a body comprising a first region and a second region. The first region may be located closer to a rotational axis of the body than the second region. A first cutting element may be located in the first region and a second cutting element may be located in the second region. A first polycrystalline table of the first cutting element may be substantially free of catalyst material to a first depth and a second polycrystalline table of the second cutting element may be substantially free of catalyst material to a second, greater depth.
申请公布号
EP2961912(A4)
申请公布日期
2016.12.07
申请号
EP20140757765
申请日期
2014.02.28
申请人
Baker Hughes Incorporated
发明人
DIGIOVANNI, Anthony, A.;NELMS, Derek, L.;LYONS, Nicholas, J.;SCOTT, Danny, E.