Results 111 to 120 of about 955 (135)
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An operator-directed control system for N.C. drilling machines
International Journal of Machine Tool Design and Research, 1983Abstract This paper describes an interactive part-programming system intended as an integral part of an N.C. controller for drilling machines. The system uses shop-floor terminology to facilitate rapid programming of parts by the machine operator. It includes the following novel features: 1. (a) automatic calculation of metal-cutting conditions;
S. Hinduja +4 more
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Seed placement measuring technique for direct drilling machines — A note
New Zealand Journal of Crop and Horticultural Science, 1985Abstract An apparatus for measuring seed placement in 3 dimensions and a sampling frame were designed and built to assess the accuracy of seed placement by direct drilling machines. Sample turf blocks were taken after drilling and transferred to a glasshouse.
N. Kaviani, R. N. Gibbs, R. F. Horrell
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Design and simulation of an electrified directional drilling machine
2021Directional drilling machines are meeting an increasing favour since they allow trenchless underground installation of ducts, pipes, and wires. All these underground infrastructures are quite fundamental for the development of modern urban communities. A new generation of electric directional drilling machines are proposed in this work.
Pugi L. +4 more
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2020 IEEE 5th Information Technology and Mechatronics Engineering Conference (ITOEC), 2020
In this paper, an anti-collision borehole method for directional drilling in coal mine is proposed. Firstly, the absolute coordinate system is established by the zero-point borehole, and then the regression model is established by the double-objective twin support vector regression algorithm.
exaly +2 more sources
In this paper, an anti-collision borehole method for directional drilling in coal mine is proposed. Firstly, the absolute coordinate system is established by the zero-point borehole, and then the regression model is established by the double-objective twin support vector regression algorithm.
exaly +2 more sources
Key Engineering Materials
In recent years, electronic devices have become lighter, thinner, shorter, smaller, and more multifunctional, driving advancements in drilling technologies. To meet the demands of electronic applications, this study proposes a drilling machine tool with a counterbalanced vibration control mechanism.
Yoshiki Kin +4 more
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In recent years, electronic devices have become lighter, thinner, shorter, smaller, and more multifunctional, driving advancements in drilling technologies. To meet the demands of electronic applications, this study proposes a drilling machine tool with a counterbalanced vibration control mechanism.
Yoshiki Kin +4 more
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<div class="section abstract"> <div class="htmlview paragraph">These general guidelines and precautions apply to personnel operating directional drilling tracking equipment when used with horizontal directional drilling (HDD) machines as defined in ISO 21467:2023.</div> </div>
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Bi-directional drilling of CFRPs: From principle to delamination suppression
Composites Part B: Engineering, 2023Wu Chaoqun, Haonan Li, Zhijie Hu
exaly
The optimization algorithm for application in directional drilling trajectories of energy field
Energy Reports, 2022Jiwei Zhang
exaly