Перегляд Volume 14, Issue 1 по темі "rotary speed"
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Experimental research into the effect of some operation factors and rock properties on the rate of penetration
(National Mining University, 2020-03-30)Purpose. The purpose of this research is to investigate the effect of weight on bit (WOB), rotary speed (RPM), and some rock properties on the rate of penetration (ROP). Methods. Four types of rock were collected from ...