The issues of improving the technology for machining the large diameter holes of the large–scale parts of the technological equipment
Karsakova N.Z. Sherov K.T. Absadykov B.N. Sikhimbayev M.R. Tussupbekova G.M.
2023National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2023#2023Issue 2126 - 133 pp.
The leading industries such as mining, oil and gas, exploration, etc. play a special role in the development of the economy of the Republic of Kazakhstan (RK). Ensuring the smooth operation of these industries primarily depends on the quality of the parts manufacturing and the components of the process equipment. Machines and technological equipment produced for these industries are characterized by high metal consumption and high labor intensity of their manufacture. Such details include the frame of the submersible pumps. The base of the NP8 submersible pump is its supporting part, on which the components and parts of the pump are mounted and to which particularly high requirements are imposed in terms of its strength, rigidity and manufacturability. The conducted studies have shown that one of the main problems arising in the manufacture of large-sized parts is the processing of the large diameter holes. The frame part has stepped holes of the large diameters, and when processing them, it is necessary to ensure the alignment of the holes. The study in this article aims to solve this problem. The authors suggest the design of a special boring bar, which provides simultaneous processing of the stepped holes. However, there is the issue of vibration when boring holes of large diameters, which negatively affects the machining accuracy. To dampen vibration during processing, it is offered to use special controlled technological equipment. The design of a special controlled technological tooling can compensate for elastic squeezing during processing. The results of experimental studies are also presented to determine the response of the system to a power surge and to a mechanical shock disturbance with and without correction of the elastic pressures.
Bed , Boring bar , Large diameter holes , Large parts , Vibration
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Karaganda State Technical University, Karaganda, Kazakhstan
S. Seifullin Kazakh Agro Technical University, Astana, Kazakhstan
National Academy of Sciences of the Republic of Kazakhstan, A.B. Bekturov Institute of Chemical Sciences, Almaty, Kazakhstan
Karaganda economic university of Kazpotrebsoyuz, Karaganda, Kazakhstan
Karaganda State Technical University
S. Seifullin Kazakh Agro Technical University
National Academy of Sciences of the Republic of Kazakhstan
Karaganda economic university of Kazpotrebsoyuz
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