ROUNDED CUTTER POCKET HAVING REDUCED STRESSED CONCENTRATION
摘要
A method for forming a drag bit (10) using displacements (16) having a rounded end (26) that creates a cutter pocket (13) having a rounded rear portion.(15). The displacement (16) may comprise an insert (46) on the rounded end that remains in the drag bit during and after formation. A cutter element (35) may then be attached to the upper portion of the insert (46). The rounded shape of the insert (46) provides a more even force distribution.
申请公布号
WO2009003088(A3)
申请公布日期
2009.04.02
申请号
WO2008US68304
申请日期
2008.06.26
申请人
BAKER HUGHES INCORPORATED;BIRD, MARC, W.;OXFORD, ANDY