SHAPED INSERTS WITH INCREASED RETENTION FORCE

A shaped insert that includes a top portion, and a grip length, wherein the grip length is modified to have a non-uniform cross sectional area is disclosed. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is modified such that the insert is non-cyl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CAWTHORNE, CHRIS E, RICHMAN, LANCE T, VIWANADHAM, RAMAMURTHY, GRIFFO, ANTHONY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	COMBINED OPERATIONS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS OTHER WORKING OF METAL PERFORMING OPERATIONS TRANSPORTING UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	A shaped insert that includes a top portion, and a grip length, wherein the grip length is modified to have a non-uniform cross sectional area is disclosed. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is modified such that the insert is non-cylindrical. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is coated in a non-uniform manner.