New Die Design for High-Pressure Torsion

Abstract:

A special design of the die was developed, which allows to implement the process of severe plastic deformation by high pressure torsion to deform ring blanks, which will be the starting material for creating high-strength piston rings. A special feature of the die design is the provision of torsion of the deforming tool with constant rectilinear movement of the press punch due to the composite deforming tool, which includes both displacement and rotation blocks. Using the obtained geometry, computer simulation of this process in the Deform program was performed in order to assess the possibility of a stable process flow. AISI-316 austenitic stainless steel was chosen as the material of the billet. The resulting strain force on the first two cycles was considered. On the first cycle, the force was equal to 464 kN, on the second cycle the force value was about 1200 kN. The obtained values are quite adequate, which indicates the possibility of multi-cycle deformation.

• Periodical: Materials Science Forum (Volume 1052)
• Pages: 352-357
• DOI: https://doi.org/10.4028/p-o79fv4
• Online since: February 2022
• Authors: Andrey Volokitin*, Irina Volokitina, Evgeniy Panin
• Keywords: Die Design, High-Pressure Torsion, Ring Blanks, Severe Plastic Deformation, Simulation

References

[1] M. Furukawa, Z. Horita, M. Nemoto, T.G. Langdon, The use of severe plastic deformation for microstructural control, Materials Science and Engineering A. 324 (2002) 82-89.

DOI: 10.1016/s0921-5093(01)01288-6

[2] E.G. Pashinskaya, Physical and mechanical bases of structure grinding under combined plastic deformation, Weber, Donetsk, (2009).

[3] R.Z. Valiev, I.V. Alexandrov, Bulk nanostructured metal materials, Akademkniga, Moscow, (2007).

[4] R.Z. Valiev, R.K. Islamgaliev, I.V. Alexandrov, Bulk nanostructured materials from severe plastic deformation, Progress in Materials Science. 45 (2000) 103-189.

DOI: 10.1016/s0079-6425(99)00007-9

[5] S. Lezhnev, A. Naizabekov, I. Volokitina, Features of change of the structure and mechanical properties of steel at ECAP depending on the initial state, Journal of Chemical Technology and Metallurgy. 52 (2017) 626-635.

[6] G.I. Raab, Development of the Method of Equal-Channel Angular Pressing for Obtaining Ultrafine-Grained Materials: Thesis's Abstract ... Cand. Tech. Sciences: 05.16.05, Ufa, (2009).

[7] G.I. Raab, Development of methods of intensive plastic deformation for obtaining bulk ultrafine-grained materials, Bulletin of UGATU. 3 (2004) 67-86.

[8] G.I. Raab, G.V. Kulyasov, V.A. Polozovsky, R.Z. Valiev, RU Patent 2,181,314 (2002).

[9] A.B. Naizabekov, Zh.A. Ashkeev, S.N. Lezhnev, A.R. Toleuova, Investigation of the process of deformation of billets in an equal-channel step matrix, Izv. Vuzov. Ferrous Metallurgy. 2 (2005) 16-18.

[10] S.N. Lezhnev, A.S. Arbuz, I.E. Volokitina, G.A. Gaidarenko, Investigation of the process of aluminum alloy deformation in an equal-channel angular matrix with a channel junction angle of 45°, Metal Processing by Pressure. 1 (2019) 104-109.

[11] A. Rosochowski, EU Patent 1,861,211 (2007).

[12] L. Olejnik, A. Rosochowski, Methods of fabricating metals for nano-technology, Bulletin of the Polish Academy of Sciences - Technical Sciences. 53 (2005) 413-423.

[13] V.Z. Spusganyuk, T.E. Konstantinova, A.A. Davidenko, I.M. Kovalenko, T.A. Zakoretskaya, L.F. Sennikova, N.N. Belousov, L.V. Loladze, A.V. Zavdoveev, Equal channel angular hydroextrusion – an effective method for forming the submicrostructural state of materials, Metal Processing by Pressure. 2 (2007) 37-42.

[14] V.Z. Spuskanyuk, A.B. Dugadko, I.M. Kovalenko, N.I. Matrosov, A.V. Spuskanyuk, B.A. Shevchenko, Features of equal-channel multi-angle extrusion, High-Pressure Physics and Technology. 13 (2003) 85-96.

[15] Zh.A. Ashkeev, A.B. Naizabekov, S.N. Lezhnev, A.R. Toleuova, Billet deformation in uniform-channel stepped die, Steel in Translation. 35 (2005) 37-39.

[16] F.Z. Utyashev, G.I. Raab, Deformation methods for obtaining and processing ultrafine-grained and nanostructured materials, Gilem, Ufa, (2013).

[17] A.P. Zhilyaev, T.G. Langdon, Using high-pressure torsion for metal processing: Fundamentals and applications, Progress in Materials Science. 53 (2008) 893-979.

DOI: 10.1016/j.pmatsci.2008.03.002

[18] C. Xu, Z. Horita, T.G. Langdon, The evolution of homogeneity in processing by high-pressure torsion, Acta Materialia. 55 (2007) 203-212.

DOI: 10.1016/j.actamat.2006.07.029

[19] O.L. Khasanov, E.S. Dilis, Z.G. Bikbaeva, Methods of compaction and consolidation of nanostructured materials and devices, Publishing house of Tomsk Polytechnic University, Tomsk, (2008).

[20] S. Erbel, Mechanical properties and structure of extremely strain-hardened copper, Metals Technology. 6 (1979) 482-486.

DOI: 10.1179/030716979803276363