Results 171 to 180 of about 2,570 (205)

Magnetic Assisted Laser Percussion Drilling

Applied Mechanics and Materials, 2013
In this paper, feasibility of laser percussion drilling on highly reflective materials i.e., Al5052 using an assisting magnetic field was explored. During the laser percussion drilling, the Lorentz force generated by the assisting magnetic field affects the laser-induced plasma and results in significant influence of the laser percussion drilling.
Chao Ching Ho, Guan Ru Tseng, Yuan Jen Chang, Jin Chen Hsu, Chia Lung Kuo   +4 more
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Laboratory Investigations on Percussive Drilling

Journal of The Institution of Engineers (India): Series D, 2013
The laboratory investigation was carried out on ten rock samples using pneumatic drill with drill bits of different diameters. In general, the process of drilling always produces sound. Sound is generated from the bit-rock interface regardless of the material of the bit used in drilling.
S. B. Kivade, Ch. S. N. Murthy, Harsha Vardhan   +2 more
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Embedded Drilling System Using Rotary-Percussion Drilling

2018
The drilling technology is widely used in various fields. This technology has been developed explosively by large companies. However, most of the conventional drilling systems require large equipment such as rig and mud systems. This makes it difficult for drilling in polar or space environments where large equipment is hard to enter or carry. To solve
Jongheon Kim, Jinkwang Kim, Hyun Myung
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Laser percussion drilling modeling utility

Journal of Laser Applications, 2009
Laser percussion drilling is widely used in the aerospace industry to produce cooling holes in jet engine components. A variety of theoretical models have been developed to predict the outcome of the drilling process. However, to utilize these models often requires sophisticated software to perform the required numerical analyses.
Tom A. Eppes, Ivana M. Milanovic, Devdas Shetty   +2 more
openaire   +1 more source

Rock characterisation using percussive drilling

International Journal of Rock Mechanics and Mining Sciences, 1998
Abstract Despite considerable advantages such as reliable hardware, no disturbance in production, fast analysis and presentation of results and very low operational cost, the use of percussive drill monitoring to retrieve geological and geomechanical information concerns the drilled rock has not become a standard investigation tool in the underground
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Automatic Control in Percussion Drilling

IFAC Proceedings Volumes, 1976
Abstract A committee within the Swedish Mining Research has evaluated automation of percussion drilling and given a priority list for the different operations, based upon the influence of automation on costs, capacity and ergonomics. The paper gives a survey of the present situation regarding mechanization and automation of feed control, stop and ...
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Microcomputer simulation of percussive drilling

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1985
Churn drilling, down-the-hole drilling, hammer drilling, and related drilling and breaking processes are simulated by means of a microcomputer.
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percussion drilling

2014
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Rotary Percussion and Auger Drilling

2010
In rotary percussion drilling, a variety of blade or roller bits (Fig. 5.2) mounted on the end of a rotating string of rods cut and break the rock. A percussion or hammer action in conjunction with a chisel bit can be used to penetrate hard material.
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Percussion Drills

2016
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