Issue №: 3 (126)
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.
RESEARCH ON LASER HARDENING OF AUTOMOTIVE PARTS IN THE AGRICULTURAL INDUSTRY
Yuriy KOVALCHUK – Candidate of Technical Sciences, Associate Professor, Associate Professor of the Departments of Agroengineering of Uman National University of Horticulture (Str. Instytutska, 1, Uman, Cherkasy region, 20301, Ukraine, e-mail: temp14053@gmail.com).
Andriy VOITIK – Candidate of Technical Sciences, Associate Professor, Head of the Department of Agroengineering of Uman National University of Horticulture (Str. Instytutska, 1, Uman, Cherkasy region, 20301, Ukraine, e-mail: av.afex81@gmail.com, https://orcid.org/0000-0002-8196-3102).
Andriy KOVALCHUK – Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Physics and Radioelectronics of Ivan Kozhedub Kharkiv National Air Force University (Str. Sumska, 77/79, Kharkiv, 61023, Ukraine, e-mail: Inna700nf@gmail.com, https://orcid.org/0000-0003-1269-9368).
During laser hardening of various automobile parts, an important factor influencing their service life is the depth of hardening and microhardness, which depend on the parameters of surface laser treatment. Successful selection of the parameters of the laser hardening process, the use of laser alloying can provide a significant increase in the operational characteristics of the processed automotive parts in the agricultural and industrial complex. The aim of the work was to determine the dependence of the depth and microhardness of the surface zones of the studied samples of iron-carbon alloys on such laser treatment parameters as laser radiation power, processing speed and the use of their laser alloying using strengthening impurities of boron carbide and tungsten carbide in an absorbing coating.
As a result of the research, it was found that with an increase in laser treatment power, the microhardness in the hardening zone increases slightly. Only at P = 1.5 kW and v = 25 mm/s does surface melting occur, and hardening without melting is observed to a depth of up to 0.5 mm. The microhardness of martensite in the lower layers of the HAZ of steel 35 increases continuously with increasing processing speed. In the upper layers of the HAZ, up to a processing speed of more than 40 mm/s, the microhardness also increases to 6900 MPa, and with a further increase in speed, it decreases.
The results of the study of the influence of strengthening impurities of boron carbide and tungsten carbide in the absorbing coating (yellow gouache) showed that the highest microhardness of the surface zones of the processed samples can be achieved by using a tungsten carbide impurity at a processing speed of V=1 mm/s.
It was established that the iron-carbon alloys used by domestic manufacturers of motor vehicles can be effectively subjected to laser processing, which will allow to provide a significant increase in the operational characteristics of the corresponding parts.
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About the journal
G8 – Materials Science
G9 – Applied Mechanics
G10 – Metallurgy
G11 – Mechanical Engineering (by specializations)
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
The All-Ukrainian scientific journal “Technology, energy, agriculture transport AIC” is an open-access scientific publication that publishes the results of original research, theoretical and applied developments, as well as scientific papers in the fields of engineering sciences, energy systems, and transport technologies of the agro-industrial complex.
The main objective of the scientific journal “Technology, energy, agriculture transport AIC” is to disseminate the results of modern scientific research and to promote the development of technical, energy, and transport solutions for the agro-industrial complex through the publication of scientific materials characterized by scientific novelty and practical significance in the field of design and modernization of machinery, equipment, and technologies.
The journal’s activities are focused on supporting the development of engineering science, stimulating the implementation of innovative approaches into industrial practice, as well as ensuring effective exchange of scientific achievements among researchers, educators, engineers, and other specialists in relevant fields.
Objectives of the Journal
To achieve its defined objective, the journal ensures the implementation of the following key tasks:
· publication of the results of fundamental and applied research covering the fields of applied mechanics, mechanical engineering, materials science, energy systems, electrical engineering, electromechanics, and transport systems of the agro-industrial sector;
· promotion of the implementation of advanced technical and technological developments aimed at improving the efficiency of machinery, equipment, and production processes;
· creation of conditions for active scientific exchange among research institutions, higher education institutions, industrial enterprises, and other interested organizations;
· support for the development of interdisciplinary research and expansion of cooperation among specialists in various fields of science and technology;
· promotion of the improvement of the scientific and technical level of research related to the design, modernization, and operation of technical equipment used in agro-industrial production;
· dissemination of information on modern achievements in science and technology and the implementation of innovative technologies in the fields of technical support, energy, and transport;
· development of a scientific information environment that facilitates effective scientific communication and the integration of national research into the international scientific community.
Publication frequency: 4 issues per year
Languages of publication: Ukrainian, English
Editor-in-Chief: Vitalii YAROPUD
State Registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting № 1337 and № 1180. Media Identifier: R30-05173
EDRPOU Code: 00497236
Publisher ROR: https://ror.org/05m3ysc06
Publisher DOI Prefix: 10.37128
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production. During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured. Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.
