 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12854 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4810 |
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| << Previous article | Volume 39, Issue 6 / 2004 | Next article >> |
| E. N. Chumachenko, "Modeling of superplastic forming of titanium-alloy shells at reduced temperatures," Mech. Solids. 39 (6), 116-128 (2004) |
| Year |
2004 |
Volume |
39 |
Number |
6 |
Pages |
116-128 |
| Title |
Modeling of superplastic forming of titanium-alloy shells at reduced temperatures |
| Author(s) |
E. N. Chumachenko (Moscow) |
| Abstract |
The choice of temperature rate modes for forming commercial titanium alloys is discussed. The possibility of reducing the temperature of commercial forming is analyzed for alloy VT6. Experimental laboratory studies of the mechanical properties of the material, the corresponding mathematical model, and numerical simulation with the software package SPLEN-O show that the temperature of commercial forming can be substantially reduced. The forming pressure can be calculated on the basis of a special algorithm that takes into account the current physical state of the shell's material and specific features of friction between the shell and the die surface. The resulting forming mode ensures the most pronounced manifestation of superplastic properties of the material in given regions of the shell.
The theoretical predictions concerning the deformation of metals subjected to forming were confirmed experimentally. Forming of special samples was carried out in laboratory conditions in accordance with the pressure modes obtained by calculations. The experiments confirmed the theoretical predictions as regards the possibility of reducing the superplastic forming temperature and the specific features of forming of shells. |
| References |
| 1. | I. K. Novikov and V. K. Portnoj, Superplastizität von Legierungen, Springer-Verlag, Berlin, 1984. |
| 2. | O. M. Smirnov, Superplastic Forming of Metals [in Russian],
Mashinostroenie, Moscow, 1979. |
| 3. | N. Payton and R. M. Hamilton (Editors), Superplastic Forming of Structural Alloys [Russian translation], Metallurgia, Moscow, 1985. |
| 4. | E. N. Chumachenko, A. N. Skorokhodov, and A. I. Aleksandrovich, "Application of finite elements in problems of deformation of incompressible materials," Izv. Vuzov. Chern. Metallurg., No. 9, pp. 89-92, 1985. |
| 5. | E, N. Chumachenko, L. T. Makarova, A. N. Skorokhodov, and O. M. Smirnov, "Numerical analysis of the gasostatic superplastic forming of shells of revolution," Izv. Vuzov. Chern. Metallurg., No. 3, pp. 71-75, 1985. |
| 6. | E. N. Chumachenko, L. T. Makarova, and V. V. Murkin, "Calculation of technological parameters of forming of shells in a matrix," Kuzn. Shtamp. Proizv., No. 2, pp. 5-6, 1987. |
| 7. | V. S. Lenskii, Introduction to the Theory of Plasticity [in Russian], Izd-vo MGU, Moscow, 1969. |
| 8. | A. A. Il'yushin, Plasticity, Gostekhizdat, Moscow, Leningrad, 1948. |
| 9. | A. N. Levanov, A. L. Kolmogorov, S. P. Burkin, et. al., Contact Friction in Pressure Forming Processes [in Russian], Metallurgia, Moscow, 1976. |
| 10. | V. S. Davydov and E. N. Chumachenko, "A method for FEM modeling of contact interaction in problems of forming of continuous media," Izv. AN. MTT [Mechanics of Solids], No. 4, pp. 53-63, 2000. |
| 11. | E. N. Chumachenko, O. M. Smirnov, and S. E. Chumachenko, "Strain-stress state of a blank in superplastic bulk forming under mutual influence of natural rheology and contact friction," Materials Science Forum, Vol. 243-245, pp. 745-750, 1997. |
| 12. | E. Chumachenko, M. Tsepin, A. Tchekine, and O. Panina, "Calculation of the structural characteristics evolution during superplastic forming of shells by SPLEN-O application computer program set", J. Mater. Sci. Technol., Vol. 17, No. 1, pp. 111-112, 2001. |
| 13. | A. B. Efimov, S. N. Romanyuk, and E. N. Chumachenko, "On the determination of friction laws for pressure forming of metals," Izv. AN. MTT [Mechanics of Solids], No. 6, pp. 82-98, 1995. |
| 14. | E. N. Chumachenko, "Modeling of contact interaction in pressure forming," Kuzn.-Shtamp. Proizvod., No. 5, pp. 2-6, 1996. |
| 15. | E. N. Chumachenko, Mathematical Modeling of Superplastic Forming of Shells [in Russian], MGIEM, Moscow, 1999. |
| 16. | E. N. Chumachenko and S. E. Chumachenko, "Mathematical modeling of pressure modes in forming of nonlinearly viscous shells in the case of local superplastic flow," Izv. AN. MTT [Mechanics of Solids], No. 6, pp. 134-142, 2000. |
|
| Received |
13 November 2002 |
| << Previous article | Volume 39, Issue 6 / 2004 | Next article >> |
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