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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">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ МИСИС</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2016-3-40-47</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-351</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>Обработка металлов давлением</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Pressure Treatment of Metals</subject></subj-group></article-categories><title-group><article-title>РАЗРАБОТКА УПРОЧНЯЮЩИХ ТЕХНОЛОГИЙ ДЛЯ ПОВЫШЕНИЯ ЭФФЕКТИВНОСТИ РЕЗАНИЯ ТИТАНОВОГО СПЛАВА ВТ20</article-title><trans-title-group xml:lang="en"><trans-title>Development of hardening technologies to improve performance of VT20 titanium alloy cutting</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>Мыльников</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mylnikov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, доцент кафедры материаловедения, технологии материалов и термической обработки металлов НГТУ.</p></bio><bio xml:lang="en"><p>Cand. Sci. (Tech.), associate prof., Department of materials science, technology of materials and heat treatment of metals.</p></bio><email xlink:type="simple">mrmylnikov@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>Пронин</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pronin</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, доцент кафедры технологии машиностроения КнАГТУ</p></bio><bio xml:lang="en"><p>Cand. Sci. (Tech.), associate prof., Department of technology of mechanical engineering.</p></bio><email xlink:type="simple">alex.pronin2011@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романов</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>зав. лабораторией НГТУ.</p></bio><bio xml:lang="en"><p>Head of the laboratory of NSTU</p></bio><email xlink:type="simple">mrmylnikov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Нижегородский государственный технический университет (НГТУ) им. Р.Е. Алексеева, 603950, г. Н. Новгород, ул. Минина, 24</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Nizhny Novgorod State Technical University n.a. R.E. Alekseev (NSTU), 603950, N. Novgorod, Minin str., 24.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Комсомольский-на-Амуре государственный технический университет (КнАГТУ), 681013, г. Комсомольск-на-Амуре, пр. Ленина, 27).</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Komsomolsk-on-Amur State Technical University (KASTU), 681013, Komsomolsk-on-Amur, Lenin av., 27.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>06</day><month>06</month><year>2016</year></pub-date><volume>0</volume><issue>3</issue><fpage>40</fpage><lpage>47</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мыльников В.В., Пронин А.И., Романов А.Д., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Мыльников В.В., Пронин А.И., Романов А.Д.</copyright-holder><copyright-holder xml:lang="en">Mylnikov V.V., Pronin A.I., Romanov A.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://cvmet.misis.ru/jour/article/view/351">https://cvmet.misis.ru/jour/article/view/351</self-uri><abstract><p>Рассмотрены технологические принципы повышения работоспособности концевых фрез, выполненных из быстрорежущей стали Р6М5К5, путем упрочнения режущей части этих фрез ионным азотированием и комплексного упрочнения (ионное азотирование и нанесение композиционного износостойкого покрытия на основе нитридов металлов). Для оптимизации режимов азотирования проведены испытания на стойкость партии фрез. Выбран оптимальный режим упрочнения, обеспечивающий наибольшую стойкость концевых фрез при обработке титанового сплава ВТ20. На основе экспериментальных данных о влиянии состава покрытий на стойкость концевых фрез предложены составы износостойких покрытий. Установлено влияние режимов резания на стойкость упрочненного инструмента. Проведен теоретический анализ результатов испытаний работоспособности упрочненного режущего инструмента.</p></abstract><trans-abstract xml:lang="en"><p>Technological principles to improve performance of end mills made of R6M5K5 high-speed steel are considered by hardening of their cutting edges with ion nitriding as well as by complex hardening (ion nitriding and application of composite wear-resistant coating based on metal nitrides). A batch of mills was tested for resistance to optimize the nitriding conditions. The optimum hardening mode that provides the highest resistance of end mills in the processing of VT20 titanium alloy was chosen. The compositions of wearresistant coatings were proposed according to the experimental data of their effect on the end mill resistance. The impact of cutting conditions on the hardened tool resistance was determined. A theoretical analysis was performed as regards the results of hardened cutter performance tests. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>титановый сплав</kwd><kwd>упрочнение инструмента</kwd><kwd>износ</kwd><kwd>стойкость</kwd><kwd>ионное азотирование</kwd><kwd>оптимальная скорость резания</kwd><kwd>концевая фреза</kwd><kwd>износостойкое покрытие</kwd><kwd>дислокации</kwd><kwd>микротрещины</kwd></kwd-group><kwd-group xml:lang="en"><kwd>titanium alloy</kwd><kwd>tool hardening</kwd><kwd>wear</kwd><kwd>resistance</kwd><kwd>ion nitriding</kwd><kwd>optimum cutting speed</kwd><kwd>end mill</kwd><kwd>wear-resistant coating</kwd><kwd>dislocations</kwd><kwd>microcracks</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">Ezugwu E.O., Wang Z.M. Titanium alloys and their machinability: A review // J. Mater. Process. Technol. 1997. Vol. 68. 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