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Abrasivity evaluation for wear prediction of button drill bits using geotechnical rock properties
Bulletin of Engineering Geology and the Environment, 2019The current study investigates the wear life of button bits and rate of penetration (ROP) of rotary-percussive drilling machines by employing geotechnical rock properties. According to the research plan, three hydropower projects and six active mining quarries in Pakistan were included. The field work included recording of drill bit consumption (m/bit)
Y. Majeed, M. Z. Abu Bakar, I. A. Butt
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Journal of Energy Resources Technology, 2020
Abstract Percussive drilling is suitable for the fragmentation of rocks and other similar materials with hard and brittle properties. Research on energy transfer efficiency is of great significance to improving the rock-breaking efficiency of percussive drilling.
Hengyu Song +6 more
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Abstract Percussive drilling is suitable for the fragmentation of rocks and other similar materials with hard and brittle properties. Research on energy transfer efficiency is of great significance to improving the rock-breaking efficiency of percussive drilling.
Hengyu Song +6 more
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Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2017
This paper proposes an optimal button arrangement of a percussion drill bit and its operating condition to improve drilling efficiency. A new evaluation method is introduced for the button arrangement that utilizes the superimposed impact area, blank area, and drilling deviation moment as the quantitative indices to evaluate the impact of buttons on ...
Hoon Kang +5 more
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This paper proposes an optimal button arrangement of a percussion drill bit and its operating condition to improve drilling efficiency. A new evaluation method is introduced for the button arrangement that utilizes the superimposed impact area, blank area, and drilling deviation moment as the quantitative indices to evaluate the impact of buttons on ...
Hoon Kang +5 more
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Evaluation of Abrasive Properties of Selected Granite Rocks and Their Effects on Button Bit Wear
Engineering HeadwayAbrasive properties of selected rocks and their influence on button bit wear were investigated. Rock samples were obtained from three locations in Southwest, Nigeria. These samples were tested in the laboratory for grain size and circularity factor.
Babatunde Adebayo +5 more
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Performance Evaluation of Button Bits in Coal Measure Rocks by Using Multiple Regression Analyses
Rock Mechanics and Rock Engineering, 2015Electro-hydraulic and jumbo drills are commonly used for underground coal mines and tunnel drives for the purpose of blasthole drilling and rock bolt installations. Not only machine parameters but also environmental conditions have significant effects on drilling. This study characterizes the performance of button bits during blasthole drilling in coal
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Analysis of Button Bit Wear and Performance of Down-The-Hole Hammer Drill
2016This work investigates bit button wear and performance of Down-The Hole Hammer (DTH) drill in Navachab Gold Mine, Namibia. Rock samples obtained were tested in the laboratory for chemical composition, equivalent quartz content and compressive strength. Schmidt hammer was used to determine the rebound hardness values of the selected rocks.
Adebayo, B, Akande, JM
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Hemispherical identation and the design of “Button Bits” for percussive drilling
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1982openaire +1 more source
Determination of major parameters of button bit (in Chinese)
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1995openaire +1 more source
A METHOD FOR TREATING TOUGHNESS AND HARDNESS OF DRILL BIT BUTTONS
2022ROSTVALL TOMAS +2 more
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