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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 3(114)

Published: 2021.09.28
DOI: 10.37128/2520-6168-2021-3


Description:
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.

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DEFORMATION OF ALUMINUM ALLOYS IN ISOTHERMAL CONDITIONS

DOI: 10.37128/2520-6168-2021-3-8
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Shvets Ludmila – PhD, Associate Professor, Department of Agricultural Engineering and Technical Service Vinnytsia National Agrarian University (Sunny str., 3, Vinnytsia, Ukraine, 21008, e-mail:  shlv0505@i.ua, https://orcid.org/0000-0002-4364-0126).
Trukhanska Elena – PhD, Associate Professor, Department of Agricultural Engineering and Technical Service Vinnytsia National Agrarian University (Sunny str., 3, Vinnytsia, Ukraine, 21008, e-mail: seaswallow@ukr.net, https://orcid.org/0000-0001-8481-8878).

Annotation

It has been scientifically proven that aluminum, more than other materials, meets the requirements of production, storage and processing of various foods. Therefore, the prospects for its use in the agro-industrial complex are quite high. At the same time, the process of developing such materials should be improved and promoted.
Aluminum alloys are widely used in the aviation industry, in mechanical engineering and in agricultural production, due to their properties and light metal consumption. Alloys are resistant to water, they are not afraid of corrosion, sunlight, easily disinfected.
All these properties are best suited for the use of aluminum in the storage of both cereals and livestock products. Moisture, dangerous molds, rodents and various insects are released and absorbed in storage. Aluminum has a high thermal conductivity and reflectivity, which reduce the risk of moisture condensation, which normalizes storage. The smoothness of this material suggests that the walls of aluminum structures collect much less dust.
The proposed isothermal method of hot deformation of aluminum alloys in the processing of metals by pressure, differs from traditional deformation, and the temperature of the heated workpiece and the deforming tool is kept constant, close to the upper limit of forging temperatures, throughout the process.
The deformation of the metal under isometric conditions and approximate deformations is characterized by an increase in ductility compared with ductility when machined in a cold tool. This is due to the lower rate of deformation, the lower limit of which is limited only by the productivity of the process. As a result, the "filling time" of defects that occur during metal deformation increases, the temperature stress in the workpiece volume decreases, the deformation becomes more uniform.

Keywords: isothermal deformation, hot deformation, rolling of billets, aluminum alloys.

List of references

[1]    Posviatenko, E., Budyak, R., Paladiichuk, Y., Shvets, L. Hryhoryshen, V. (2018). Influence of a material and the technological factors on improvement of operating properties of machine parts by reliefs and film coatings.  Eastern-European Journal of Enterprise Technologies. № 5/12 (95), P. 48–56. [in English].
[2]    Skryabin, S.A. (2007). Technology of hot deformation of billets from aluminum alloys on forging rollers. Vinnytsia: A. Vlasyuk. [In Russian].
[3]    Budyak, R.V., Posvyatenko, E.K., Shvets, L.V., Zhuchenko, G.A. (2020). Materials science and technology of constructive materials. Tutorial. Vinnytsia National Agrarian University. [in Ukrainian].
[4]    Pulupec, M., Shvets, L. (2019). Characteristics and thermomechanical modes of aluminum alloys hot deformation. Current Problems of Transport: Proceedings of the 1st International Scientific Conference. Ternopil Ivan Puluj National Technical University and Scientific Publishing House «SciView». Ternopil, 195–204. ISSN: 978-966-305-101-7. [in English].
[5]    Shvets, L. (2020). Determination of parameters during hot rolling of aluminum alloys. The 2-nd International scientific and practical conference “Innovative development of science and education” (April 26-28,  2020)  ISGT Publishing House, Athens, Greece. [in Ukrainian].
[6]    Shvets, L. (2020). Extension value, with hot rolled aluminum alloy specimens, round section in smooth rollers. Scientific foundations of modern engineering: monograph. Boston: Primedia e Launch. ISBN 978-1-64871-656-0. doi : 10.46299/isg.2020.mono.tech.i [in English].
[7]    Kostarev, І.В., Solomonov, K.N., Kharitonov, A.O. (1999). Formation of thin-walled ribbed forgings of aluminum alloys. M .: MSTU Publishing House. N.E. Bauman. [In Russian].

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About journal

Topics of the journal:

131 - Applied Mechanics

132 - Materials Science

133 - Industry engineering

141 - Power engineering, electrical engineering and electromechanics

208 - Agricultural engineering

The magazine "Engineering, Energy, Transport AIC" is included in the list of scientific professional editions of Ukraine on technical sciences

(Category "Б", Order of the Ministry of Education and Science of Ukraine dated 02.07.2020 №886)

Old version of site: http://tetapk.vsau.edu.ua, http://techjournal.vsau.org

Key information:
ISSN (print): 2520-6168
DOI: 10.37128/2520-6168

Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.

Founder of the journal: Vinnytsia National Agrarian University

Editor-in-chief: Oleksii Tokarchuk - Ph.D., Associate Professor, VNAU (Vinnytsia)

Deputy Editor-in-Chief: Natalia Veselovska - Doctor of Technical Sciences, Full Prof., VNAU (Vinnytsia)

Executive Secretary: Yuriy Polevoda- Ph.D., Associate Professor, VNAU (Vinnytsia)

Members of the Editorial Board:

Tokarchuk O.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Veselovska N.R. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

Polevoda Yu.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Jordan Todorov Maximov - Doctor of Technical Sciences, Full Professor, Technical University of Gabrovo (Bulgaria)

Bulgakov V.M. - Doctor of Technical Sciences, Full Professor, Acad. NAAS, National University of Life and Environmental Sciences of Ukraine

Hraniak V.F. - Ph.D., Associate Professor, Vinnytsia National Technical University

Ivanchuk Y.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Technical University

Iskovich-Lototsky R.D. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Technical University

Kupchuk I.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Sevostianov I.V. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

Spirin A.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tverdokhlib I.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tsurkan A.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Agrarian University

Yaropud V.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

 

Type of publication: journal

Kind of publication: scientific

Publication status: domestic

Year of foundation: 1997

Periodicity: 4 times per year

Volume: 18-20 conv. print. sheet (А4)

ISSN: 2520-6168 (print version), (online version)

Language of publication: (mixed languages) Ukrainian, English

The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.

The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.

The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".

Subscription to the journal can be issued in each post office. The subscription index is 99720.

History of journal:

It was founded in 1997 under the title "Bulletin of the Vinnitsa State Agricultural Institute." According to the Decree of the Presidium of the Higher Attestation Commission of Ukraine of September 11, 1997, this publication received the status of a professional in which it is allowed to publish the main results of dissertation researches.

In 2001-2014 the journal published under the title “Collection of scientific works of Vinnytsia National Agrarian University. Series: Technical Sciences "(Certificate of State Registration of Mass Media KV No. 16644-5116 PR of 04/30/2010).

Since 2015 journal has title "Engineering, Energy, Transport AIC" (Certificate of State Registration of Mass Media No. 21906-11806 P dated 03/12/2016).