PRODUCTION OF THREE-LAYER STEEL BIMETALLIC STRIPS IN THE UNIT OF CONTINUOUS CASTING AND DEFORMATION. REPORT 2

The paper states urgency of the problem of determining stressstrain state of metals of the cladding layer and the main strip in  production of three-layer bimetal: alloyed steel-constructional steelalloyed steel. Temperature field of the main strip and cladding layer  is given to calculate stress-strain state of metals of three-layer bimetallic strip. Initial data for calculating this stress-strain state are  given. To assess the effect of coefficient of friction between cladding  layer  s and the main strip on stress-strain state of metals in deformation zone, three values of it are taken. Geometric model is described  for calculating stress-strain state and metal flow in deformation center of cladding layer. Characteristic lines and points of calculation are  provided. Technique for solving the problem of determining stresses  and flows in deformation focus is described by finite element method  using ANSYS app. Regularities of flow of cladding layer’s metal  along the length of deformation center and movement of the main  strip of bimetallic ingot are given. Values   of mutual displacement of  layers of bimetallic strip are determined as a function of deformation  degree of the cladding layer. And the recommendations are given on  this degree to improve quali ty of a three-layer bimetal. Regularities  of distribution of axial and tangential stresses in deformation center  are presented for production of steel three-layer bimetallic strips in  the unit of combined continuous casting and deformation. Stress state  of the cladding layer’s metal in focus of cyclic deformation was estimated from the position of improving quality of three-layer bimetallic strips produced in such unit.

1. Lekhov O.S., Mikhalev A.V. Production of three-layer steel bimetallic strips in the unit of continuous casting and deformation. Report 1. Izvestiya. Ferrous Metallurgy. 2019, no. 8, pp. 594–599. (In  Russ.).

2. Lekhov O.S., Mikhalev A.V. Ustanovka sovmeshchennogo protsessa nepreryvnogo lit’ya i deformatsii dlya proizvodstva listov iz stali dlya svarnykh trub [Unit of combined continuous casting and deformation process for the production of steel sheets for welded pipes.  Theory and calculation]. Ekaterinburg: izd-vo UMTs UPI, 2017,  151  p. (In Russ.).

3. Erenberg Kh.-Yu. Casting and compression from the casting of  thin slabs at the factory of “Mannesman Rhenen-Verke AG” Company. In: Metallurgicheskoe proizvodstvo i tekhnologiya metallurgicheskikh protsessov [Metallurgical production and technology of  metallurgical processes]. Moscow: Metallurgiya, 1990, pp. 46–56.  (In Russ.).

4. Fornas’e M., P’emonte K., Pigani A., Satonin A. Casting and rolling  of thin slabs from API steels for use in arctic conditions. Metallurgicheskoe proizvodstvo i tekhnologii. 2011, no. 1, pp. 16–29.

5. Fujii H., Ohashi T., Hiromoto T. On the formation of the internal  cracks in continuously cast slabs. Transact. Iron and Steel Inst. Japan. 1978, vol. 18, no. 8, pp. 510–518.

6. ANSYS. Structural Analysis Guide. Rel. 15.0. http/www.cadfer.ru.

7. Takashima Y., Yanagimoto  I.  Finite  element  analysis  of  flange  spread behavior in H-beam universal rolling. Wiley in Steel Research International. 2011, vol. 82, pp. 1240–1247. 

8. Karrech A., Seibi A. Analytical model of the expansion in of tubes  under tension. Journal of Materials Processing Technology. 2010,  vol. 210, pp. 336–362.

9. Kazakov A.L., Spevak L.F. Numeral and analytical studies of nonlinear parabolic equation with boundary conditions of a special  form. Applied Mathematical Modelling. 2013, vol. 37, no. 10-13,  pp. 6918–6928.

10. Kobayashi S., Oh S-I, Altan T. Metal forming and finite-element method. New York: Oxford University Press, 1989, 377 p.

11. Jansson N. Optimized sparse matrix assembly in finite element solvers with one-sided communication. High Performance Computing for Computational Science. VECPAR 2012 Springer Berlin Heidelberg, 2013, pp. 128–139. 

12. Matsumia Т., Nakamura Y. Mathematical model of slab bulging  during continuous casting. In: Applied Mathematical and Physical Models in Iron and Steel Industry. Proc. of the 3rd Process Tech. Conf., Pittsburgh, Pa, 28-31 March 1982. New York, 1982,  pp.  264–270.

13. Lekhov O.S., Guzanov B.N., Lisin I.V., Bilalov D.Kh. Combined  process of continuous casting and cyclic deformation for production  of steel sheets. Stal’, 2016, no. 1, pp. 52. (In Russ.).

14. Boley Bruno A., Weiner Jerome H. Theory of Thermal Stresses.  New York: John Wiley & Sons, 1960. (Russ.ed.: Boley B., Weiner J.  Teoriya temperaturnykh napryazhenii. Moscow: Mir, 1964, 517 p.).

15. Lekhov O.S. Study of stress-strain state of rolls-band system at rolling of broad-flanged beam in stands of universal beam mill. Report  2.  Izvestiya. Ferrous Metallurgy. 2014, no. 12, pp. 15–19. (In Russ.).

16. Sorimachi K., Emi T. Elastoplastic stress analysis of bulging as a  major cause of internal cracks in continuously cast slabs. Tetsu to Hagane. 1977, vol. 63, no. 8, pp. 1297–1304.

17. Shlyakhova G.V., Barannikova S.A., Bochkareva A.V., Zuev L.B.  Study of the structure of bimetal “Construction carbon steel – stainless steel”. Izvestiya. Ferrous Metallurgy. 2018, vol. 61, no. 4,  pp.  300–305. (In Russ.).

18. Li Yu.V., Barannikova S.A., Zuev L.B. Localization of plastic deformation in layered materials. In: Sb. materialov XII Mezhdunarodnoi konferentsii “Mekhanika, resurs i dolgovechnost’ materialov i konstruktsii” [Papers of the 12th Int. Conf. “Mechanics, Resource  and Durability of Materials and Structures”]. Ekaterinburg: izd-vo  IMASH UrO RAN, 2018, p. 198. (In Russ.).

19. Sudnik A.V., Petrov I.V., Galinovskii A.L., Kolpakov V.I., Moiseev  V.A. Promising areas of application of bimetals in machine  building. Fundamental’nye i prikladnye problemy tekhniki i tekhnologii. 2015, no. 2, pp. 80–88. (In Russ.).

20. Plokhikh A.I., Pustyrskii S.V. Modeling of the process of plastic deformation of multilayer metallic materials. In: Sb. dokladov mezhdunarodnogo nauchno-tekhnicheskogo kongressa ‘OMD 2014. Fundamental’nye problemy. Innovatsionnye materialy i tekhnologii’: vol. 1 [Papers of the Int. Sci. and Tech. Congress “OMD 2014”.  Fundamental Problems. Innovative Materials and Technologies].  Moscow: OOO Belyi veter, 2014, pp. 221–226. (In Russ.).