Invention Grant
US09381600B2 Apparatus and methods to manufacture PDC bits 有权
用于制造PDC位的装置和方法

Apparatus and methods to manufacture PDC bits
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.
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