Title:
METHOD OF FORMING POCKETS FOR RECEIVING DRILL BIT CUTTING ELEMENTS
Document Type and Number:
WIPO Patent Application WO2008112262
Kind Code:
B1
Abstract:
Methods of forming cutting element pockets in earth-boring tools include machining at least one recess (52) to define at least one surface of a cutting element pocket using a cutter (56) oriented at an angle to a longitudinal axis of the cutting element pocket. Methods of forming earth-boring tools include forming a bit body (50) and forming at least one cutting element pocket therein using a rotating cutter oriented at an angle relative to a longitudinal axis (60) of the cutting element pocket being formed. Earth-boring tools have a bit body comprising a first surface defining a lateral sidewall (55) of a cutting element pocket, a second surface defining an end wall (66) of the cutting element pocket, and another surface defining a groove located between the first and second surfaces that extends into the body to enable a cutting element (18) to abut against an area of the lateral sidewall and end wall of the pocket.
Inventors:
DUGGAN JAMES L (US)
STEVENS JOHN H (US)
SMITH REDD H (US)
STEVENS JOHN H (US)
SMITH REDD H (US)
Application Number:
PCT/US2008/003302
Publication Date:
November 20, 2008
Filing Date:
March 12, 2008
Export Citation:
Assignee:
BAKER HUGHES INC (US)
DUGGAN JAMES L (US)
STEVENS JOHN H (US)
SMITH REDD H (US)
DUGGAN JAMES L (US)
STEVENS JOHN H (US)
SMITH REDD H (US)
International Classes:
E21B10/573; E21B10/55
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