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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">ipolytech</journal-id><journal-title-group><journal-title xml:lang="ru">iPolytech Journal</journal-title><trans-title-group xml:lang="en"><trans-title>iPolytech Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-4004</issn><issn pub-type="epub">2782-6341</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/1814-3520-2021-6-696-707</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-544</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАШИНОСТРОЕНИЕ И МАШИНОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MACHINE BUILDING AND MACHINE SCIENCE</subject></subj-group></article-categories><title-group><article-title>Влияние секториального радиуса деформирующего инструмента на напряженно-деформированное состояние в зоне контакта с цилиндрической поверхностью</article-title><trans-title-group xml:lang="en"><trans-title>Effect of the sector radius of a workpiece-deforming tool on the stress-strain state in the contact zone with a cylindrical surface</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7750-7497</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайдес</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaides</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зайдес Семен Азикович, доктор технических наук, профессор, профессор кафедры материаловедения, сварочных и аддитивных технологий</p><p>664074, г. Иркутск, ул. Лермонтова, 83, Россия</p></bio><bio xml:lang="en"><p>Semen A. Zaides, Dr. Sci. (Eng.), Professor, Professor of the Department of Materials Science, Welding and Additive Technologies</p><p>83, Lermontov St., Irkutsk 664074, Russia</p></bio><email xlink:type="simple">zsahaus@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0488-0290</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хо</surname><given-names>Куан Минь</given-names></name><name name-style="western" xml:lang="en"><surname>Ho</surname><given-names>Quan Minh</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хо Куан Минь, аспирант</p><p>664074, г. Иркутск, ул. Лермонтова, 83, Россия</p></bio><bio xml:lang="en"><p>Quan Minh Ho, Postgraduate Student</p><p>83, Lermontov St., Irkutsk 664074, Russia</p></bio><email xlink:type="simple">minhquanho2605@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6124-3231</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Май</surname><given-names>Нгиа Дик</given-names></name><name name-style="western" xml:lang="en"><surname>Mai</surname><given-names>Nghia Duc</given-names></name></name-alternatives><bio xml:lang="ru"><p>Май Нгиа Дик, кандидат технических наук, заместитель декана факультета машиностроения</p><p>10000, г. Начянг, Вьетнам</p></bio><bio xml:lang="en"><p>Nghia Duc Mai, Cand. Sci. (Eng.), Deputy Dean of the Mechanical Engineering Faculty</p><p>Nha Trang 10000, Viet Nam</p></bio><email xlink:type="simple">nghiamaiduc@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Офицерское училище Военно-Воздушных Сил</institution><country>Вьетнам</country></aff><aff xml:lang="en"><institution>Air Force Officer's college</institution><country>Viet Nam</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2022</year></pub-date><volume>25</volume><issue>6</issue><fpage>696</fpage><lpage>707</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зайдес С.А., Хо К.М., Май Н.Д., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Зайдес С.А., Хо К.М., Май Н.Д.</copyright-holder><copyright-holder xml:lang="en">Zaides S.A., Ho Q.M., Mai N.D.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://ipolytech.elpub.ru/jour/article/view/544">https://ipolytech.elpub.ru/jour/article/view/544</self-uri><abstract><p>Целью данной работы является определение влияния секториального радиуса рабочего инструмента на напряженно-деформированное состояние в очаге упругопластической дефлорации и остаточных напряжений в упрочненной зоне поверхностного слоя цилиндрических деталей. Для достижения поставленной цели использован метод конечных элементов на основе компьютерной программы ANSYS для построения математической модели локального нагружения, позволяющей определить значения временных, остаточных напряжений и деформаций в зависимости от секториального радиуса рабочего инструмента. Представлены результаты моделирования и определения влияния секториального радиуса рабочего инструмента на напряженнодеформированное состояние поверхностного слоя, включая определение временных и остаточных напряжений, глубины пластической зоны. Полученные результаты компьютерного моделирования подтверждают, что при одинаковых условиях нагружения на цилиндрическую поверхность рабочий инструмент с разными секториальными радиусами создает разные значения максимальных временных и остаточных напряжений. При этом в случае воздействия на цилиндрическую заготовку рабочего инструмента с плоской поверхностью формируются минимальные значения временных остаточных напряжений по сравнению с результатами, полученными при упрочнении криволинейным рабочим инструментом. С уменьшением радиуса рабочего сектора увеличиваются значения временных остаточных напряжений в пределах от 2 до 7%. Глубина пластической зоны при изменении секториального радиуса рабочего инструмента находится в интервале 1,65–2,55 мм.</p></abstract><trans-abstract xml:lang="en"><p>This paper aims to determine the effect of the sector radius of a workpiece-deforming tool on the stress-strain state in the center of elastoplastic deformation and residual stresses in the hardened zone of the surface layer of cylindrical workpieces. A mathematical model of local loading was constructed using the finite element method and AN-SYS software. This model was used to determine the values of temporary and residual stresses and deformations, as well as the depth of plastic zone, depending on the sector radius of the working tool. The simulation results showed that, under the same loading of a cylindrical surface, working tools with different sector radii create different maximum tempo-rary and residual stresses. An assessment of the stress state was carried out for situations when the surface layer of a product is treated by workpiece-deforming tools with a different shape of the working edge. It was shown that, compared to a flat tool, a decrease in the radius of the working sector from 125 to 25 mm leads to an increase in the maximum temporary and residual stresses by 1.2–1.5 times, while the plastic zone depth increases by 1.5–2.4 times. The use of a working tool with a flat surface for hardening a cylindrical workpiece ensures minimal temporary residual stresses, com-pared to those produced by a working tool with a curved surface. A decrease in the radius of the working sector leads to an increase in temporary residual stresses by 2–7%. The plastic zone depth ranges from 1.65 to 2.55 mm when chang-ing the sector radius of the working tool.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поверхностное пластическое деформирование</kwd><kwd>упругопластическое состояние</kwd><kwd>рабочий инструмент</kwd><kwd>временное напряжение</kwd><kwd>остаточное напряжение</kwd><kwd>компьютерное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>plastic surface deformation</kwd><kwd>elastic-plastic state</kwd><kwd>working tool</kwd><kwd>temporary stress</kwd><kwd>residual stress</kwd><kwd>com-puter modeling</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Одинцов Л. Г. Упрочнение и отделка деталей поверхностным пластическим деформированием. М.: Машиностроение, 1987. 328 с.</mixed-citation><mixed-citation xml:lang="en">Odintsov L. G. Hardening and finishing of parts by sur-face plastic deformation. 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