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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">10.17073/0368-0797-2019-7-531-538</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1679</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Физическое моделирование процесса непрерывной формовки сварных прямошовных труб на участке открытых валковых калибров ТЭСА</article-title><trans-title-group xml:lang="en"><trans-title>Modeling of longitudinal welded pipe forming in open rolling pass unit of electric weld pipe mill</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самусев</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Samusev</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор кафедры обработки металлов давлением</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor of the Chair “Metal Forming”</p></bio><email xlink:type="simple">sergei18.58@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фадеев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fadeev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер</p></bio><bio xml:lang="en"><p>Engineer</p></bio><email xlink:type="simple">fdv_viktor@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS” (MISIS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>22</day><month>08</month><year>2019</year></pub-date><volume>62</volume><issue>7</issue><fpage>531</fpage><lpage>538</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Самусев С.В., Фадеев В.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Самусев С.В., Фадеев В.А.</copyright-holder><copyright-holder xml:lang="en">Samusev S.V., Fadeev V.A.</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/1679">https://fermet.misis.ru/jour/article/view/1679</self-uri><abstract><p>Представлены результаты физического и теоретического моделирования процесса непрерывной формовки. Эксперименты по непрерывной формовке полосовых заготовок проводили на трубоэлектросварочном стане 10-50 для трубы диам. 50 мм со стенкой 1 мм. Процесс формоизменения трубных заготовок осуществляли на участке формовочных горизонтальных и вертикальных клетей с оценкой геометрических параметров. Калибровка валкового инструмента – однорадиусная. Определены и замерены энергосиловые параметры процесса, которые влияют на качество геометрии заготовки. Анализ геометрических параметров полученной заготовки выявил дефекты типа гофр на правой кромке заготовки между второй эджерной и третьей формовочной клетями. Аналогичный дефект выявлен на левой кромке заготовки на межклетевом расстоянии третьей формовочной и эджерной клетями. Для устранения дефектов на формовочном участке перестраивали горизонтальные клети так, чтобы усилия по приводным клетям были идентичны. Последовательно были определены энергосиловые параметры процесса: тянущие усилия приводных клетей, значения сопротивлений перемещению полосы по приводным клетям и вертикальные усилия формовки. Расчеты по определению энергосиловых параметров выполняли с учетом основных технических параметров по двум методикам. Первая методика учитывает геометрические параметры сформованной заготовки и параметры очага сворачивания с учетом зоны внеконтактной деформации. Вторая методика базируется на учете контактного взаимодействия заготовки и профилированного инструмента по сечениям деформации. Расхождение расчетных и экспериментальных данных составило 8 – 12 %. После корректировки технических параметров процесса формовки и перенастройки валковых калибров была сформована бездефектная трубная заготовка. Сравнительный анализ расчетных и экспериментальных траекторий кромок по клетям по высоте и ширине показал расхождения результатов в пределах 6 – 9 %. При исследовании геометрических параметров очага деформации учитывали контактную и  внеконтактную зоны очага сворачивания и участок распружинивания. Рассчитаны параметры формоизменения трубной заготовки в монотонном и валковом очагах формовки. Анализ проведенных результатов показал, что формоизменение заготовки соответствует принятым положениям о характере изменения геометрии заготовки в валковых приводных калибрах.</p></abstract><trans-abstract xml:lang="en"><p>The results of theoretical and physical modeling of pipes forming process are described. Experiments on strip billets forming were carried out on 10-50 pipe-welding mill for a pipe 50 mm in diameter with 1mm wall. Forming of pipe billets was carried out at unit of forming horizontal and vertical stands with estimation of geometrical parameters. Roll drafting is one-radial. Energy-power parameters of the process that affect quality of billet geometry were determined and measured. Analysis of geometric parameters of resulting billet has revealed defects of buckling type on the billet’s right edge between the second edger and the third molding stand. Similar defect was detected at the left edge of the billet at a distance of the third molding and edger stands. To eliminate defects in forming section, shaping stands were rebuilt so that forces on drive cells were identical. Energy-force parameters of the process were sequentially determined: pulling forces of drive stands, resistance to strip movement and vertical molding forces. Calculations for determining energy-force parameters were performed taking into account the main technical parameters using two methods. The first technique takes into account geometric parameters of molded billet and parameters of working zone with the zone of non-contact deformation. The second method is based on consideration of contact interaction between the billet and shaped instrument along the deformation section. Discrepancy between calculated and experimental data was 8  –  12  %. After adjusting technical parameters of the molding process and the passes re-adjusting, a defect-free pipe billet was formed. Comparative analysis of calculated and experimental edge trajectories along the height and width of the cages showed discrepancy in results in range of 6  –  9  %. While studying geometric parameters of the focus of deformation, contact and non-contact zones of working zone and area of sprinkling were taken into account. Parameters of the pipe billet shaping in monotonous and roll forming centers have been calculated. Analysis of the results has shown that change in billet’s geometry in shaping stand corresponds to the accepted statements of billet’s geometry changes in rolling pass.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>непрерывная формовка</kwd><kwd>ТЭСА</kwd><kwd>формовочный стан</kwd><kwd>электросварная труба</kwd><kwd>валковая формовка</kwd><kwd>моделирование</kwd><kwd>валковый инструмент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cold roll-forming</kwd><kwd>TESA</kwd><kwd>molding mill</kwd><kwd>electric-welded pipe</kwd><kwd>roller forming</kwd><kwd>modeling</kwd><kwd>shaped roll</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">Рымов В.А., Полухин П.И., Потапов И.Н. Совершенствование производства сварных труб. – М.: Металлургия, 1983. – 286 с.</mixed-citation><mixed-citation xml:lang="en">Rymov V.A., Polukhin P.I., Potapov I.N. 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