Invention Grant
- Patent Title: Method of manufacturing a drill bit
- Patent Title (中): 钻头的制造方法
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Application No.: US12964827Application Date: 2010-12-10
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Publication No.: US08925422B2Publication Date: 2015-01-06
- Inventor: Gregory T. Lockwood , Youhe Zhang , Yuelin Shen
- Applicant: Gregory T. Lockwood , Youhe Zhang , Yuelin Shen
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Osha Liang LLP
- Main IPC: B21K5/04
- IPC: B21K5/04 ; E21B10/42 ; C22C29/08 ; C22C29/06 ; E21B10/55 ; C22C1/05 ; B22F5/00

Abstract:
A method of manufacturing a drill bit having a bit body and a plurality of blades extending radially from the bit body is disclosed, wherein the method includes adhering a first matrix material to at least a portion of a mold cavity corresponding to an outer surface of the bit body, loading a second matrix material into the other portions of the mold cavity, and heating the mold contents to form a matrix body drill bit.
Public/Granted literature
- US20110174114A1 MATRIX BIT BODIES WITH MULTIPLE MATRIX MATERIALS Public/Granted day:2011-07-21
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