Articles
Material processing technologies
1.
№5, 2016
УДК 66.017
Izakov I.A.1, Kapitanenko D.V.2, Bazhenov A.R.2
Research of parameters of technological processes of isothermal deformation
Results of theoretical and experimental researches of isothermal deformation technological processes parameters are presented in this article. The influence of thermal effect of plastic deformation and dynamic recrystallization at depending on temperature and speed on the strain resistance and the influence of isothermal deformation rate at die working life are investigated. The method of evaluating the true temperature of the metal during deformation under isothermal conditions, based on the energy account, spent on the plastic deformation and heat removed from the workpiece is proposed. The method of calculating the optimum strain rate taking into account the creep of the die material is proposed. The creep curves of die material at a constant temperature is used. Some results (influence of deformation thermal effect on dynamic recrystallization, for example) were used for dynamic softening experimental researches results analyzing.
Keywords: recrystallization, deformation, die tooling , isothermal deformation.
Reference List
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3. Kablov E.N., Ospennikova O.G., Lomberg B.S. Kompleksnaya innovacionnaya tehnologiya izotermicheskoj shtampovki na vozduhe v rezhime sverhplastichnosti diskov iz superzharoprochnyh splavov [Complex innovative technology of isothermal punching on air in mode of superplasticity of disks from superhot strength alloys] // Aviacionnye materialy i tehnologii. 2012. №S. S. 129–141.
4. Razuvaev E.I., Moiseev N.V., Kapitanenko D.V., Bubnov M.V. Sovremennye tehnologii obrabotki metallov davleniem [Modern technologies of plastic working of metals] // Trudy VIAM: elektron. nauch.-tehnich. zhurn. 2015. №2. St. 03. Available at: http://www.viam-works.ru (accessed: May 16, 2016). DOI: 10.18577/2307-6046-2015-0-2-3-3.
5. Kablov E.N. Razrabotki VIAM dlya gazoturbinnykh dvigateley i ustanovok [Development of VIAM for gas turbine engines and installations] // Krylya Rodiny. 2010. №4. S. 31–33.
6. Bernshteyn M.L. Struktura deformirovannykh metallov [Structure of the deformed metals]. M.: Metallurgiya, 1977. S. 432.
7. Braslavskiy D.I., Izakov I.A., Roshchina I.N. Dinamicheskaya rekristallizatsiya splava KhN77TYuR v protsesse izotermicheskoy deformatsii [Dynamic recrystallization of alloy KhN77TYuR in the course of isothermal deformation] // Metallovedenie i termicheskaya obrabotka metallov. 1984. №5. S. 39–41.
8. Bernshteyn M.L., Kaputkina L.M., Dobatkin S.V. Novoe v issledovaniyakh fazovykh i strukturnykh prevrashcheniy v stalyakh [New in researches of phase and structural transformations in stalyakh]. M.: MDNTP, 1985. S. 63–66.
9. Gorelik S.S. Rekristallizatsiya metallov i splavov [Recrystallization of metals and alloys]. 2-e izd., pererab. i dop. M.: Metallurgiya, 1978. 568 s.
10. Dadras P., Thomas J.F. Characterization and modeling for forging deformation of Ti–6Al–2Sn–4Zr––2Mo–0,1Si // Met. Trans. 1981. Vol. 12A. No. 11. P. 1867–1876.
11. Chirkov E.F. Temp razuprochneniya pri nagrevakh – kriteriy otsenki zharoprochnosti kon-struktsionnykh splavov sistem Al–Cu–Mg i Al–Cu [Rate of loss of strength when heatings – criterion of assessment of thermal stability of structural alloys of Al–Cu–Mg and Al–Cu systems ] // Trudy VIAM: elektron. nauch.-tekhnich. zhurn. 2013. №2. St. 02. Available at: http://www.viam-works.ru (accessed: May 16, 2016).
12. Semiatin S.L., Lahoti G.D. Deformation and Unstable Flow in Hot Forging of Ti–6Al–2Sn–4Zr–2Mo––0,1Si // Met. Trans. 1981. Vol. 12A. No. 10. P. 1705–1717.
13. Luton M.J., Sellars C.M. Dynamic recrystallization in nickel and nickel-iron alloys during high temperature deformation // Acta Metallurgica. 1969. Vol. 17. No. 8. P. 1033–1043.
14. Figlin S.Z., Kaplin Yu.G., Boytsov V.V. Teplovydelenie pri izotermicheskoy osadke i pressovanii [Heat release at isothermal deposit and pressing] // Kuznechno-shtampovochnoe proizvodstvo. 1975. №6. S. 9–11.
15. Severdenko V.P. Plastichnost i obrabotka metallov davleniem [Plasticity and processing of metals by pressure]. Minsk: Nauka i tekhnika, 1968. S. 5–12.
16. Kablov E.N. Zharoprochnye konstruktsionnye materialy [Heat resisting constructional materials] // Liteynoe proizvodstvo. 2005. №7. S. 2–7.
17. Smirnova Yu.V., Boytsov V.V., Izakov I.A., Gruber M.B. O vliyanii masshtabnogo faktora na svoystva litogo zharoprochnogo shtampovogo materiala [About influence of large-scale factor on properties of cast heat resisting shtampovy material] // Kuznechno-shtampovochnoe proizvodstvo. 1984. №10. S. 23–24.
