THEORETICAL INVESTIGATION OF RAIL PROFILE ROLLING IN UNIVERSAL CALIBER. Report 1
https://doi.org/10.17073/0368-0797-2015-6-448-454
Abstract
Based on the use of the variational principle of minimum total power and modern mathematic modelling tools a mathematical model of metal forming in the universal rail rolling pass was developed and implemented, in which there is a uniform deformation of all elements of the rail profile. In particular, it was constructed a geometric model of the deformation zone and kinematically possible velocity field of the metal flow, defined boundary conditions and built a basic system of equations, including the energy balance equation and the condition of the minimum of the functional. In contrast to the well-known variational solutions in the proposed mathematical model, all the equations are calculated without any simplifications, which improve the accuracy of calculations and characterizes the novelty of the solution in question. Application of the created mathematical model allows determining the principles of metal flow during rolling in universal passes.
About the Author
D. L. Shvarts
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metal Forming”
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metal Forming”
References
1. Matveev B.N. Modern rail rolling mills. Byull. “Chernaya metallurgiya”. Moscow: OAO “Chermetinformatsiya”. 2006, no. 2, pp. 40–43. (In Russ.).
2. Sveikovski U., Nerzak T. Manufacture of rails of high quality with a compact universal stands and technologies Rail. Metallurgicheskoe proizvodstvo i tekhnologiya (MRT). 2006, no. 2, pp. 50–56. (In Russ.).
3. Shilov V.A., Shvarts D.L., Litvinov R.A. The calculation of metal forming at rails rolling in universal calibers. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2008, no. 3, pp. 51–54. (In Russ.).
4. Smirnov V.K., Bondin A.R., Mikhailenko A.M. The research of rails rolling in universal. Proizvodstvo prokata. 2003, no. 12, pp. 24–30. (In Russ.).
5. Shilov V.A., Litvinov R.A., Shvarts D.L. The modeling of rails rolling in universal calibers. Proizvodstvo prokata. 2009, no. 8, pp. 20–25. (In Russ.)
6. Smirnov V.K., Shilov V.A., Litvinov K.I. Deformatsii i usiliya v kalibrakh prostoi formy [Deformation and efforts in calibers of simple form]. Moscow: Metallurgiya, 1982. 144 p. (In Russ.).
7. Smirnov V.K., Shilov V.A., Inatovich Yu.V. Kalibrovka prokatnykh valkov. Uchebnoe posobie dlya vuzov [Grooving of rolls. Textbook for universities]. Moscow: Teplotekhnik, 2008. 490 p. (In Russ.).
8. Smirnov V.K., Tarnovskii I.Ya., Shilov V.A. etc. Metodika resheniya variatsionnogo uravneniya chislennym metodom pri issledovanii prokatki v kalibrakh [Methods of solution of variational equations by numerical method in the study of rolling in calibers]. In: Teoriya i tekhnologiya prokatki: Sb. nauch. tr. [Theory and technology of rolling: Coll. of scientific papers]. Magnitogorsk, 1970. Issue 67, pp. 92–98. (In Russ.).
Review
For citations:
Shvarts D.L. THEORETICAL INVESTIGATION OF RAIL PROFILE ROLLING IN UNIVERSAL CALIBER. Report 1. Izvestiya. Ferrous Metallurgy. 2015;58(6):448-454. (In Russ.) https://doi.org/10.17073/0368-0797-2015-6-448-454
Views:
681
Email this article 