Issue №: 2(89)
Журнал присвячено висвітленню проблем з вібраційних технологій і машин, математичних методів досліджень вібраційних процесів, подано інформацію про проєктно-конструкторські технологічні розробки, представлено навчально-методичні аспекти викладання у Вищій школі прикладних дисциплін, де вивчаються вібраційні машини і технології.
METHOD MODELING OF COMBINED COLD METAL EXTRACTION PROCESSES
Derevenko Iryna – Candidate of Technical Sciences, Senior Lecturer of the Department of General Technical Disciplines and Labor Protection, Vinnytsia National Agrarian University (3, Solnyschaya St., Vinnytsia, Ukraine,21008, e-mail: i.a.derevenko@gmail.com).
A modeling method is developed for estimating the limiting form-modification of the workpieces of the parts deformed by the method of combined cold extrusion without disturbing their integrity. The proposed modeling method takes into account the factors influencing the plasticity of metals. Based on the hypothesis of kinematic similarity and similarity of paths of deformation, we propose a formula by which one can calculate the maximum permissible contractions for materials, whose diagram of plasticity is known. The resource of plasticity is calculated taking into account and without taking into account the third invariant of the stress tensor. It is shown that when constructing plasticity diagrams, it is necessary to take into account the influence of the third invariant of the stress tensor on plasticity.
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2. Aliev, I.S., & Alieva, L.I., & Martyinov, S.V., & Tkachenko, N.Yu. (2010). Otsenka tehnologicheskoy deformiruemosti pri holodnom vyidavlivanii vtulok s flantsem [Evaluation of technological deformability at cold extrusion of bushings with a flange] Nauchnyiy vestnik DGMA - Scientific Herald DSEA, 1(6E), 9-4. [in Ukrainian].
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About journal
The journal "Vibrations in engineering and technology" presents materials on the following issues
• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production
The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine
(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)
Old version of the site: http://vibrojournal.vsau.edu.ua/
The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:
The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition : (mixed languages) Ukrainian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
Journal subscription can be executed in each post office department.
Subscription Index is 99720.
Old version of site: http://vibrojournal.vsau.edu.ua/
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M PhD , professor, academician NAAS is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.
