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ArticleName Definition of mechanical properties of copper and brass strips on indices of hardness factors in the time of cold rolling
ArticleAuthor Shatalov R. L., Lukash A. S., Ziselman V. L.

Moscow State Open University named after V. S. Chernomyrdin, Moscow, Russia:

R. L. Shatalov, Professor, Head of a Chair of Metallurgy, Metals Science and Plastic Metal Working, e-mail:
A. S. Lukash, Post-Graduate Student


Moscow Non-Ferrous Metals Processing Plant, Moscow, Russia:
V. L. Ziselman, Chief Engineer


There was researched the influence of reduction in the range of 4–26% of copper and brass on the basic mechanical properties of metal in cold rolling of strips on two-roll mill (150240 mm) for technological process improvement. The samples (2.0–2.75 mm thickness, 20 mm wide, 150 mm length) were used as experimental rolling billets. These samples were found from commercial batches of copper and brass, rolled on Kolchuginsky and Kirov non-ferrous metals processing plants. The chemical composition of the samples was determined by X-ray fluorescence spectrometry in laboratories of National University of Science and Technology “MISIS”. A number of experiments was carried out for definition of dependence of the yield stress from swaging and metal hardness. There was developed a new experimental mathematical method for determination of coefficients of equations for calculation of metal deformation resistance during cold rolling (including intermediate stands (passes) in absence of thickness values), and metal deformation resistance in annealed state. There were defined the regression equations and plot connection of strengths, plasticity and hardness of strip rolling, made of M3 copper and LS59-1 and L63 brass. These equations made possible to apply the results of nondestructive quality control of metal in computer-aided design process system of cold rolling of strip and ribbon.

keywords Сopper, brass, cold rolling, yield stress, strain, hardness, the regression equation

1. Markovets M. P. Opredelenie mekhanicheskikh svoystv metallov po tverdosti (Definition of mechanical properties of materials on hardness). Moscow : Mashinostroenie, 1979. 192 p.
2. Zinovev A. V., Kolpashnikov A. I., Polukhin P. I. et al. Tekhnologiya obrabotki davleniem tsvetnykh metallov i splavov (Technology of plastic working of non-ferrous metals and alloys). Moscow : Metallurgiya, 1992. 512 p.
3. Osintsev O. E., Fedorov V. N. Med i mednye splavy. Otechestvennye i zarubezhnye marki : spravochnik (Copper and copper alloys. Russian and foreign grades : reference book). Moscow : Mashinostroenie, 2004. 336 p.
4. Tretyakov A. V., Zyuzin V. I. Mekhanicheskie svoystva metallov i splavov pri obrabotke metallov davleniem (Mechanical properties of metals and alloys in the time of plastic metal working). Moscow : Metallurgiya, 1973. 223 p.
5. Raykov Yu. N., Ashikhmin G. V., Polukhin V. P., Gulyaev A. S. Mednye splavy. Marki, svoystva, primeneniya. Spravochnik (Copper alloys. Grades, properties, application. Reference book). Moscow : Institute “Tsvetmetobrabotka”, 2011. 456 p.
6. GOST 859–2001. Med. Marki (State Standard 859–2001. Copper. Grades). Introduced: March 01, 2002.
7. GOST 15527–2004. Splavy medno-tsinkovye (latuni), obrabatyvaemye davleniem. Marki (State Standard 15527–2004. Plastic worked copper-zinc (brass) alloys. Grades). Introduced: July 01, 2005.
8. GOST 1497–84. Metally. Metody ispytaniy na rastyazhenie (State Standard 1497–84. Metals. Testing methods on stretching). Introduced: January 01, 1986.
9. Shevakin Yu. F., Chernyshev V. N., Shatalov R. L., Mochalov N. A. Obrabotka metallov davleniem (Plastic metal working). Moscow : Intermet, 2005. 496 p.
10. Lugovskoy V. M., Shatalov R. L. Teoreticheskie osnovy sostavleniya algoritmov rascheta protsessov prokatki i volocheniya : uchebnoe posobie (Theory basis of making of algorithms of calculation of rolling and dregging processes : tutorial). Moscow : All-Union Correspondence Polytechnical Institute, 1988. 96 p.
11. Smiryagin A. P., Smiryagina N. A., Belova A. V. Promyshlennye tsvetnye metally (Industrial non-ferrous metals). Moscow : Metallurgiya, 1974. 488 p.
12. Bobylev A. V. Mekhanicheskie i tekhnologicheskie svoystva metallov : spravochnik (Mechanical and technological properties of metals : reference book). Moscow : Metallurgiya, 1987. 208 p.

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