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: email@example.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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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 certificateof massmediaState 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
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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.