Invention Grant
- Patent Title: Apparatus and methods to manufacture PDC bits
- Patent Title (中): 用于制造PDC位的装置和方法
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Application No.: US12505997Application Date: 2009-07-20
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Publication No.: US09381600B2Publication Date: 2016-07-05
- Inventor: Cary A. Roth
- Applicant: Cary A. Roth
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Main IPC: B21K31/00
- IPC: B21K31/00 ; B23P15/28 ; B23K15/00 ; B23K15/06 ; B23K31/02

Abstract:
A method to manufacture a drill bit including constructing a bit head portion of the drill bit, constructing a bit shank portion of the drill bit, aligning the bit head portion with the bit shank portion, and electron beam welding a butted joint between the bit head portion and the bit shank portion.
Public/Granted literature
- US20100018353A1 APPARATUS AND METHODS TO MANUFACTURE PDC BITS Public/Granted day:2010-01-28
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