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Wyszukujesz frazę "Dobrovolska, L." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Forecasting of the productivity of parts machining by highspeed milling with the method of half-overlap
Autorzy:
Dobrotvorskiy, S.
Basova, Y.
Ivanova, M.
Kotliar, A.
Dobrovolska, L.
Powiązania:
https://bibliotekanauki.pl/articles/328626.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
high-speed milling
processing efficiency
processing strategy
half-overlap
deformation component
obróbka maszynowa
frezowanie
jakość
wydajność
prognozowanie
Opis:
In the article the technology of high-speed milling was observed as a key to the most promising methods of engineering products machining. It is indicated that the correct choice of the strategy for moving the cutting tool in the manufacture of products is the basis for ensuring the desired surface quality of the workpiece and its high processing efficiency. A review of the work devoted to the diagnosis of high-speed processing strategies was performed. Based on the up-to-date knowledge of the physics of the process of establishing of a qualitative surface, the article proposes to consider a new technology of high-speed milling with half-overlap. As the main idea of this technology, it is suggested to consider the work of the deformation component of cutting process as the main component of the complex energy-intensive process of high-speed milling. In addition, the paper suggests a technique for estimating the productivity of machining by the method of high-speed milling with half-overlap. It is theoretically justified that the specific productivity of the proposed technology is quite high Q=12.5÷4.2 cm2 /min and depends on the technological regimes. The place of technology of high-speed milling with half-overlap in the technological process of manufacturing details of any complexity was noted. The area of further research is indicated.
Źródło:
Diagnostyka; 2018, 19, 3; 37-42
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of the Scheme of the Installation for Mechanical Wastewater Treatment
Autorzy:
Sevostianov, Ivan V.
Ivanchuk, Yaroslav V.
Polishchuk, Oleksandr V.
Lutsyk, Vladyslav L.
Dobrovolska, Kateryna V.
Smailova, Saule
Wójcik, Waldemar
Kalizhanova, Aliya
Powiązania:
https://bibliotekanauki.pl/articles/1839562.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
industrial wastewater
domestic wastewater
continuous mechanical treatment
installation
efficiency
Opis:
The paper presents the schemes of various equipment for the mechanical treatment of the industrial and domestic wastewater, which allows removing it from the main part of the pollution. An examination of the shortcomings of the known equipment with the aim of its improvement was conducted. As a result, an installation scheme for continuous high-performance mechanical wastewater treatment was proposed. In contrast to the known equipment, the proposed installation provides a three-staged treatment of wastewater with the help of the two pairs of gratings – for preliminary treatment (removal of large-size pollutions) and by filtration through the two metallic sieves – for normal and fine treatment (removal of small-size mechanical pollutions). The installation consists of highly-efficient appliances for the cleaning of filtering elements in the course of realization of the working process, which provides stable high productivity of treatment. The installation has simple reliable design and low energy expenses. The paper contains the formulas for determining of main operational parameters of the installation: the change of the cross-sectional area of the filtering elements and productivity of the working process, periodicity of cleaning of gratings and sieves, the necessary electric power of installations drives. These formulas can be a basis for further research of installation and for elaboration of a method of its design calculation.
Źródło:
Journal of Ecological Engineering; 2021, 22, 1; 20-28
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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