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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2026-3-294-304</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-3090</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>ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ И АВТОМАТИЗАЦИЯ В ЧЕРНОЙ  МЕТАЛЛУРГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFORMATION TECHNOLOGIES AND AUTOMATIC CONTROL IN FERROUS METALLURGY</subject></subj-group></article-categories><title-group><article-title>Оценка напряженно-деформированного состояния при комбинированном процессе правки и упрочнения нежестких цилиндрических деталей</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of stress–strain state in the combined process of straightening and strengthening of non-rigid cylindrical parts</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9416-7749</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>Семен Азикович Зайдес, д.т.н., профессор кафедры материаловедения, сварочных и аддитивных технологий</p><p>Россия, 664074, Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Semen A. Zaides, Dr. Sci. (Eng.), Prof. of the Chair of Materials Science, Welding and Additive Technologies</p><p>83 Lermontova Str., Irkutsk 664074, Russian Federation</p></bio><email xlink:type="simple">zsa@istu.edu</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-6390-105X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зунг</surname><given-names>Буй Мань</given-names></name><name name-style="western" xml:lang="en"><surname>Dung</surname><given-names>Bui Manh</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мань Зунг Буй, аспирант кафедры технологии и оборудования машностроительных производств</p><p>Россия, 664074, Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Manh Dung Bui, Postgraduate of the Chair of Technology and Equipment for Mechanical Engineering Production</p><p>83 Lermontova Str., Irkutsk 664074, Russian Federation</p></bio><email xlink:type="simple">manhdungbuik52@gmail.com</email><xref ref-type="aff" rid="aff-1"/></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><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2026</year></pub-date><volume>69</volume><issue>3</issue><fpage>294</fpage><lpage>304</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зайдес С.А., Зунг Б., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Зайдес С.А., Зунг Б.</copyright-holder><copyright-holder xml:lang="en">Zaides S.A., Dung B.</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://fermet.misis.ru/jour/article/view/3090">https://fermet.misis.ru/jour/article/view/3090</self-uri><abstract><p>В статье рассмотрено напряженно-деформированное состояние нежестких цилиндрических деталей при комбинированном процессе правки и упрочнении плоскими клиновыми плитами. Актуальность работы обусловлена необходимостью повышения геомет­рической точности и эксплуатационной надежности длинномерных маложестких валов, которые подвержены значительным деформациям в процессе изготовления и термообработки. Разработан новый способ для правки и упрочнения нежестких цилиндрических деталей типа валов и осей в одной технологической операции, предназначенной в основном для обработки деталей из пластичных металлов и сплавов. Цель работы заключается в определении допустимых геометрических значений искривленных цилиндрических деталей и рациональных технологических параметров процесса правки и упрочнения плоскими клиновыми плитами. В ходе исследования была разработана теоретическая модель, позволившая определить критические условия захвата и стабильного вращения цилиндрической заготовки между рабочими поверхностями плоских клиновых плит. На основании теоретического расчета определено допустимое значение исходного прогиба заготовки, которое не должно превышать 4 мм на длине 200 мм. Для верификации теоретических данных было проведено компьютерное моделирование в программном комплексе ANSYS. Использование метода конечных элементов позволило уточнить границы устойчивого протекания процесса. По результатам моделирования установлено, что для обеспечения прямолинейности оси заготовки без повреждения ее поверхности значение исходного прогиба не должно превышать 3,5 мм на длине 200 мм. Оценка распределения остаточных напряжений и пластических деформаций показала, что рациональная степень относительного обжатия находится в пределах 1,3 – 1,5 %. Полученные результаты могут быть использованы при разработке эффективных технологий обработки нежестких цилиндрических деталей, способствующих повышению их эксплуатационных характеристик и точности изготовления.</p></abstract><trans-abstract xml:lang="en"><p>The article examines the stress-strain state of flexible cylindrical parts during the combined process of straightening and strengthening with flat wedge plates. The relevance of the work is determined by the need to improve the geometric accuracy and operational reliability of long, low-rigid shafts subjected to significant deformations during manufacturing and heat treatment. The authors developed a new method for straightening and strengthening flexible cylindrical parts such as shafts and axles in a single technological operation. It is intended primarily for machining parts made of ductile metals and alloys. The objective of the study was to determine the permissible geometric values ​​of curved cylindrical parts and rational technological parameters for the straightening and strengthening process with flat wedge plates. A theoretical model was developed during the study, which made it possible to determine the critical conditions for gripping and stable rotation of a cylindrical billet between the working surfaces of flat wedge plates. Based on the theoretical calculation, the permissible value of the billet initial deflection was determined, which should not exceed 4 mm over a length of 200 mm. To verify the theoretical data, computer simulations were conducted using the ANSYS software package. Using the finite element method, the process’s stable boundaries were clarified. The simulation results revealed that, to ensure the straightness of the billet axis without damaging the surface, the initial deflection should not exceed 3.5 mm over a length of 200 mm. An assessment of the distribution of residual stresses and plastic deformations revealed that the optimal relative reduction ratio is within the range of 1.3 – 1.5 %. The obtained results can be used in development of effective technologies for machining flexible cylindrical parts, contributing to improved performance and manufacturing accuracy. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>правка</kwd><kwd>упрочнение</kwd><kwd>напряженно-деформированное состояние</kwd><kwd>нежесткая цилиндрическая деталь</kwd><kwd>плоская клиновая плита</kwd><kwd>относительное обжатие</kwd><kwd>конечно-элементное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>straightening</kwd><kwd>strengthening</kwd><kwd>stress–strain state</kwd><kwd>non-rigid cylindrical part</kwd><kwd>flat wedge plate</kwd><kwd>percent reduction</kwd><kwd>finite element 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">Antimonov A.M., Pushkareva N.B., Reshetnikov E.G. Cylind­rical shell edges bending process technological features. 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