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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">lim</journal-id><journal-title-group><journal-title xml:lang="ru">Литье и металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-6065</issn><issn pub-type="epub">2414-0406</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/1683-6065-2022-3-91-95</article-id><article-id custom-type="elpub" pub-id-type="custom">lim-3491</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>Материаловедение</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Science of materials</subject></subj-group></article-categories><title-group><article-title>Повышение стойкости штампов холодной штамповки закалкой с промежуточным отпуском</article-title><trans-title-group xml:lang="en"><trans-title>Increasing the durability of cold forging dies hardening with intermediate tempering</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>Бердиев</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Berdiev</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">berdiyev_mf@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>Тошматов</surname><given-names>Р. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Toshmatov</surname><given-names>R. K.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллаев</surname><given-names>А. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullaev</surname><given-names>A. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ташкентский государственный технический университет им. И. Каримова</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>Tashkent State Technical University named after I. Karimov</institution><country>Uzbekistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>14</day><month>10</month><year>2022</year></pub-date><volume>0</volume><issue>3</issue><fpage>91</fpage><lpage>95</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бердиев Д.М., Тошматов Р.К., Абдуллаев А.Х., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Бердиев Д.М., Тошматов Р.К., Абдуллаев А.Х.</copyright-holder><copyright-holder xml:lang="en">Berdiev D.M., Toshmatov R.K., Abdullaev A.K.</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://lim.bntu.by/jour/article/view/3491">https://lim.bntu.by/jour/article/view/3491</self-uri><abstract><p>На основании исследований характера износа инструмента для холодной штамповки установлена целесообразность применения термической обработки закалкой с промежуточным отпуском. Учитывая, что плотность дислокации мало изменяется при 1100–1150 ºС, было решено рекомендовать для термической обработки именно этот интервал температур. Промежуточный отпуск при 450 ºС наиболее предпочтителен, так как обеспечивает не только стабилизацию дислокационной структуры, но в большей степени снижает внутренние напряжения после первой закалки. Данная обработка повышает стойкость штампового инструмента в 2–3 раза.</p></abstract><trans-abstract xml:lang="en"><p>Based on studies of the tool wear nature for cold stamping, the expediency of using heat treatment by quenching with intermediate tempering has been established. Considering that the dislocation density changes little at 1100–1150 ºС, it was recommended this specific temperature range for heat treatment. Intermediate tempering at 450 ºС is the most preferable, as it provides not only dislocation structure stabilization, but also reduces internal stresses after the first hardening. This treatment increases the durability of the forging tool by 2–3 times.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>термическая обработка</kwd><kwd>твердость</kwd><kwd>плотность дислокаций</kwd><kwd>промежуточный отпуск</kwd><kwd>низколегированная сталь</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heat treatment</kwd><kwd>hardness</kwd><kwd>dislocation density</kwd><kwd>intermediate tempering</kwd><kwd>low alloy steel</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">Околович Г. А. Штамповые стали для холодного деформирования металлов. Барнаул: АлтГТУ, 2010. 202 с.</mixed-citation><mixed-citation xml:lang="en">Okolovich G.A. Shtampovie stali dlya xolodnogo deformirovaniya metallov [Die steels for cold forming of metals]. 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