Cone erosion protection for roller cone drill bits

A method of forming a drill bit structure, the method including fixing spacers to the drill bit structure. The spacers are arranged at preselected locations on an outer surface of the drill bit structure. A hardfacing material is then applied to the drill bit structure, and the spacers are removed....

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Griffo, Anthony, Fang, Zhigang, Slaughter, Jr, Robert H
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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