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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Obrabotka Metallov / Metal Working and Material Science</journal-id><journal-title-group><journal-title xml:lang="en">Obrabotka Metallov / Metal Working and Material Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Обработка металлов (технология • оборудование • инструменты)</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-6309</issn><issn publication-format="electronic">2541-819X</issn><publisher><publisher-name xml:lang="en">Новосибирский государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">356666</article-id><article-id pub-id-type="doi">10.17212/1994-6309-2025-27.4-116-130</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>TECHNOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ТЕХНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Optimal milling parameters of 0.12 C-18 Cr-10Ni-Ti stainless steel fabricated by electron beam additive manufacturing</article-title><trans-title-group xml:lang="ru"><trans-title>Определение оптимальных параметров фрезерования нержавеющей стали 12Х18Н10Т, изготовленной методом проволочного электронно-лучевого аддитивного производства</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3738-0193</contrib-id><contrib-id contrib-id-type="scopus">58000788300</contrib-id><contrib-id contrib-id-type="researcherid">KRV-7414-2024</contrib-id><contrib-id contrib-id-type="spin">1437-7723</contrib-id><name-alternatives><name xml:lang="en"><surname>Qi</surname><given-names>Mengxu</given-names></name><name xml:lang="ru"><surname>Ци</surname><given-names>Мэнсюй</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Post-graduate Student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><email>mensyuy1@tpu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7623-7360</contrib-id><contrib-id contrib-id-type="scopus">7003422815</contrib-id><contrib-id contrib-id-type="researcherid">H-2160-2016</contrib-id><contrib-id contrib-id-type="spin">2348-2651</contrib-id><name-alternatives><name xml:lang="en"><surname>Panin</surname><given-names>Sergey V.</given-names></name><name xml:lang="ru"><surname>Панин</surname><given-names>Сергей Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D.Sc. (Engineering), Professor</p></bio><bio xml:lang="ru"><p>доктор техн. наук, профессор</p></bio><email>svp@ispms.ru</email><uri>https://www.ispms.ru/persons/panin-sergey-viktorovich.php</uri><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2558-7613</contrib-id><contrib-id contrib-id-type="scopus">57205610120</contrib-id><contrib-id contrib-id-type="researcherid">MEO-3821-2025</contrib-id><contrib-id contrib-id-type="spin">7166-3580</contrib-id><name-alternatives><name xml:lang="en"><surname>Stepanov</surname><given-names>Dmitry Yu.</given-names></name><name xml:lang="ru"><surname>Степанов</surname><given-names>Дмитрий Юрьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Ph.D. (Engineering)</p></bio><bio xml:lang="ru"><p>канд. техн. наук</p></bio><email>sdu@ispms.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3337-6579</contrib-id><contrib-id contrib-id-type="researcherid">F-5495-2014</contrib-id><contrib-id contrib-id-type="spin">7852-3768</contrib-id><name-alternatives><name xml:lang="en"><surname>Burkov</surname><given-names>Mikhail V.</given-names></name><name xml:lang="ru"><surname>Бурков</surname><given-names>Михаил Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Ph.D. (Engineering)</p></bio><bio xml:lang="ru"><p>канд. техн. наук</p></bio><email>sdu@ispms.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-7820-1227</contrib-id><contrib-id contrib-id-type="researcherid">MZQ-6626-2025</contrib-id><contrib-id contrib-id-type="spin">7543-1914</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhang</surname><given-names>Qingrong</given-names></name><name xml:lang="ru"><surname>Чжан</surname><given-names>Цинжун</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Post-graduate Student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><email>cinzhun1@tpu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Research Tomsk Polytechnic University</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Томский политехнический университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Strength Physics and Materials Sciences SB RAS</institution></aff><aff><institution xml:lang="ru">Институт физики прочности и материаловедения СО РАН</institution></aff></aff-alternatives><volume>27</volume><issue>4</issue><issue-title xml:lang="en">VOL 27, NO4 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 27, №4 (2025)</issue-title><fpage>116</fpage><lpage>130</lpage><history><date date-type="received" iso-8601-date="2025-12-07"><day>07</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Qi M., Panin S.V., Stepanov D.Y., Burkov M.V., Zhang Q.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Ци М., Панин С.В., Степанов Д.Ю., Бурков М.В., Чжан Ц.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Qi M., Panin S.V., Stepanov D.Y., Burkov M.V., Zhang Q.</copyright-holder><copyright-holder xml:lang="ru">Ци М., Панин С.В., Степанов Д.Ю., Бурков М.В., Чжан Ц.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rcsi.science/1994-6309/article/view/356666">https://journals.rcsi.science/1994-6309/article/view/356666</self-uri><abstract xml:lang="en"><p><bold>Introduction. </bold>Unlike traditional manufacturing processes, additive manufacturing (AM) offers improved efficiency while being environmentally friendly. A significant limitation hindering the adoption of wire-based electron beam additive manufacturing (EBAM) technology is the relatively low quality and high surface roughness of 3D-printed parts. <bold>The purpose of this study</bold> is to establish the optimal values of milling process parameters (rotational speed, feed rate, and milling width) based on the simultaneous evaluation of the surface roughness of the machined surface and the material removal rate. <bold>Methods and materials.</bold> This study investigated specimens fabricated using EBAM technology. Uniaxial tensile tests were conducted on an electromechanical testing machine. Cutting forces were determined with a Kistler 9257B dynamometer. Milling studies of EBAM 321 steel workpieces were performed on a semi-industrial CNC milling machine. <bold>Results and discussion.</bold> It was shown that in order to increase the material removal rate and reduce the cutting force on a milling machine without the use of coolant, it is recommended to increase the milling speed, but not to increase the feed rate. To investigate the relationship between material removal rate and surface roughness relative to milling parameters on a semi-industrial machine (with an average stiffness of the portal frame), multiple linear regression models and nonlinear models based on feedforward neural networks were employed. It was demonstrated that linear regression models are sufficient for predicting optimal milling parameters. However, it should be noted that the study was conducted within a narrow range of gentle machining conditions, with short processing times and without accounting for tool wear. Under these constraints, the optimal milling parameters for EBAM 321 steel were predicted as follows: spindle speed of 4,500 rpm, feed rate <bold>S</bold> = 404 mm/min, and cutting depth <bold>B</bold> = 0.43 mm, resulting in a predicted surface roughness (<bold>Ra</bold>) of 0.648 µm and a material removal rate of 695 mm³/min.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold><bold> </bold>В отличие от традиционных вычитающих технологий аддитивное производство (АП) имеет следующие преимущества: сокращение времени изготовления деталей и увеличение сроков службы материалов. Оно также характеризуется лучшей экологичностью, прежде всего вследствие повышения коэффициента использования материала (снижения количества стружки). Проволочные электронно-лучевые технологии АП обладают несомненным преимуществом, связанным с высокой производительностью и материалоемкостью. С другой стороны, существенным ограничением, сдерживающим внедрение проволочной электронно-лучевой технологии АП (EBAM), является низкая размерная точность и большая шероховатость поверхности 3D-напечатанных деталей. <bold>Цель работы:</bold> подбор оптимальных значений режимных параметров фрезерования (частоты вращения, подачи и ширины фрезерования) на основании одновременной оценки шероховатости обрабатываемой поверхности и скорости удаления материала. <bold>Методы и материалы.</bold> В работе исследовали образцы, полученные с помощью технологии EBAM. Механические свойства определяли путем испытаний на одноосное растяжение на электромеханической испытательной машине. Силу резания определяли с помощью динамометра Kistler 9257В. Исследования по фрезерованию заготовок нержавеющей стали EBAM 321 выполняли как на стационарном станке без применения СОЖ, так и на широкоформатном фрезерном станке с ЧПУ с применением СОЖ. <bold>Результаты и обсуждение.</bold> Показано, что для повышения производительности (скорости удаления материала) и снижения силы резания на стационарном станке без применения СОЖ целесообразно увеличивать скорость фрезерования, не увеличивая при этом величину подачи. При исследовании взаимосвязи скорости удаления материала и шероховатости от параметров фрезерования на широкоформатном фрезерном ЧПУ-станке с невысокой жесткостью портальной рамы и с применением СОЖ предложены модели линейной множественной регрессии и нелинейные модели на основе нейронных сетей прямого распространения. Показано, что для прогноза оптимальных параметров фрезерования достаточно использовать линейные регрессионные модели. Однако необходимо учесть, что исследования проводились в узких рамках щадящих режимов при малых временах механообработки и без учета возможного износа инструмента. Для этих условий (ограничений) дан прогноз оптимальных параметров фрезерования нержавеющей стали EBAM 12Х18Н10Т: при частоте вращения 4500 об/мин, подаче S = 404 мм/мин и ширине B = 0,43 мм прогнозируемая шероховатость Ra составит 0,648 мкм, а скорость удаления материала – 695 мм3/мин.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Additive manufacturing</kwd><kwd>AISI 321</kwd><kwd>Electron beam additive manufacturing</kwd><kwd>Milling</kwd><kwd>Multiple regression method</kwd><kwd>Feed-Forward Neural Network</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Aддитивные технологии</kwd><kwd>Сталь 12Х18Н10Т</kwd><kwd>Электронно-лучевое аддитивное производство</kwd><kwd>Фрезерование</kwd><kwd>Метод множественной регрессии</kwd><kwd>Нейросетевое моделирование</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Funding&#13;
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The study was financially supported by the Russian Federation via Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-15-2023-456).&#13;
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Acknowledgements&#13;
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Research were conducted at core facility "Structure, mechanical and physical properties of materials" NSTU. The authors thank Yu.V. Kushnarev for assistance in fabricating 0.12C-18Cr-10Ni-Ti steel samples at the experimental facility of ISPMS SB RAS.</funding-statement><funding-statement xml:lang="ru">Финансирование:&#13;
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Исследования выполнены в рамках проекта Министерства науки и высшего образования РФ, Соглашение №075-15-2023-456.&#13;
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Благодарности:&#13;
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При проведении исследований использовано оборудование ЦКП "Структура, механические и физические свойства материалов" НГТУ. Авторы благодарят Ю.В. Кушнарева за помощь в изготовлении образцов стали 12Х18Н10Т на опытной установке ИФПМ СО РАН.</funding-statement></funding-group></article-meta><fn-group><fn xml:lang="en"><p><italic>Funding</italic></p>&#13;
<p>The study was financially supported by the Russian Federation via Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-15-2023-456).</p>&#13;
<p> </p>&#13;
<p><italic>Acknowledgements</italic></p>&#13;
<p>Research were conducted at core facility "Structure, mechanical and physical properties of materials" NSTU. The authors thank Yu.V. Kushnarev for assistance in fabricating <italic>0.12C-18Cr-10Ni-Ti</italic> steel samples at the experimental facility of ISPMS SB RAS.</p></fn><fn xml:lang="ru"><p><italic>Финансирование:</italic></p>&#13;
<p>Исследования выполнены в рамках проекта Министерства науки и высшего образования РФ, Соглашение №075-15-2023-456.</p>&#13;
<p> </p>&#13;
<p><italic>Благодарности:</italic></p>&#13;
<p>При проведении исследований использовано оборудование ЦКП "Структура, механические и физические свойства материалов" НГТУ. Авторы благодарят Ю.В. Кушнарева за помощь в изготовлении образцов стали 12Х18Н10Т на опытной установке ИФПМ СО РАН.</p></fn></fn-group></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lippold J.C., Kotecki D.J. Welding metallurgy and weldability of stainless steels. – Hoboken: John Wiley &amp; Sons, 2005. – 357 p. – ISBN 978-0-471-47379-4.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Research progress on the relationship between microstructure and properties of AISI 321 stainless steel / Z. Huang, J. Zhang, Z. Ma, S. Yuan, H. 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