New geometry for TCP: severe plastic deformation of tubes

Document Type: Research Paper


Ferdowsi University of Mashhad


Since tubes are widely used for different industrial applications, processing of tubes by the Severe Plastic Deformation (SPD) method has been the target of different attempts. Among these attempts, development of SPD processes for tubes based on Equal Channel Angular Pressing (ECAP) has been more successful. As an illustration, Tube Channel Pressing (TCP) has been presented as an attractive SPD process since a relatively homogenous strain can be imposed on different sizes of tubes by this process. However, since die/mandrel geometry has a remarkable effect on the deformation behavior of tube in this process, more efforts must be focused on the optimization of the geometry of this process. This work is aimed to examine a new die geometry for TCP in order to reduce the strain heterogeneity and rupture risk of tube through the process. For this purpose, the effects of different geometrical parameters on the deformation behavior of tube during the process are studied using FEM simulations. In these simulations, the rupture risk of tube is considered using a damage criterion and then, results of simulations are compared with experiments. Results show that the new geometry of TCP imposes more intense strain, causes less strain heterogeneity and results in less risk of rupture of tube during the process. In addition, comparison of simulations and experiments shows that the applied simulation method can predict the rupture of tube during TCP. Besides this, different geometrical parameters of the new geometry of TCP are optimized by simulations considering dimensions of tube.


 [1] V. M. Segal, Material processing by simple shear, Mater Sci Eng, 197A (1995) 157–64.

[2] R. Z., Valiev, N. A. Krasilnikov and N. K., Tsenev, Plastic deformation of alloys with submicron-grained structure, Mater Sci Eng A, 137 (1991) 35-40.

[3] N. Tsuji, Y., Saito, H., Utsunomiya and S. Tanigawa, Ultrafine grained bulk steel produced by Accumulative Roll-Bonding (ARB) process, Scr Mater, 40 (1999) 795–800.

[4] Y. Estrin and A. Vinogradov, Extreme grain refinement by severe plastic deformation: A wealth of challenging science, Acta Mater, 61 (2013) 782–817.

[5] M. S. Mohebbi, and A. Akbarzadeh, Accumulative spin bonding (ASB) as a novel SPD process for fabrication of nanostructured tubes, Mater Sci Eng A, 528 (2010) 180–8.

[6] L. S. Toth, M. Arzaghi, J. J. Fundenberger, B. Beausir, O. Bouaziz and R. A. Massion. Severe plastic deformation of metals by high-pressure tube twisting, Scr Mater, 60 (2009) 175–7.

[7] A. V. Nagasekhar, U. Chakkingal and P. Venugopal, Candidature of equal channel angular pressing for processing of tubular commercial purity-titanium, J Mater Proc Tech, 173 (2006) 53–60.

[8] A. Zangiabadi and M. Kazeminezhad. Development of a novel severe plastic deformation method for tubular materials: Tube Channel Pressing (TCP), Mater Sci Eng A, 528 (2011) 5066-72.

[9] M. H. Farshidi and M. Kazeminezhad, The effects of die geometry in tube channel pressing: Severe plastic deformation. J Mater Design App: In press:

[10] G. Faraji, M. M. Mashhadi, A. F. Dizadji, and M. Hamdi, A numerical and experimental study on tubular channel angular pressing (TCAP) process. J Mech Sci Tech, 26 (2012) 3463-8.

[11] V. Tavakkoli, M. Afrasiabi, G. Faraji and M. M. Mashhadi, Severe mechanical anisotropy of high-strength ultrafine grained Cu–Zn tubes processed by parallel tubular channel angular pressing (PTCAP), Mater Sci Eng A, 625 (2015) 50–5.

[12] M. H. Farshidi and M. Kazeminezhad, Deformation behavior of 6061 aluminum alloy through tube channel pressing: Severe plastic deformation, J Mater Eng Perform, 21 (2012) 2099–105.

[13] G. Faraji, M. M. Mashhadi and H. S. Kim, Deformation behavior in Tubular Channel Angular Pressing (TCAP) using triangular and semicircular channels, Mater Transact, 53 (2012) 8-12.


 [14] N. Medeiros, L. P. Moreira, J. D. Bressan, J. F. C. Lins and J. P. Gouvea, Upper-bound sensitivity analysis of the ECAE process, Mater Sci Eng A, 527 (2010) 2831–44.

[15] C. J. Luis Perez, On the correct selection of the channel die in ECAP processes, Scr Mater, 50 (2004) 387–93.

[16] A. P. Zhilyaev, K. Oh-ishi, G. I. Raab and T.R. McNelley, Influence of ECAP processing parameters on texture and microstructure of commercially pure aluminum, Mater Sci Eng A, 441 (2006) 245–52.

[17] M. H. Farshidi, M. Kazeminezhad and H. Miyamoto, Microstructrual evolution of aluminum 6061 alloy through Tube Channel Pressing, Mater Sci Eng, 615 A (2014) 139-47.

[18] V. Patil Basavaraj, U. Chakkingal and T. S. Prasanna Kumar, Effect of geometric parameters on strain, strain inhomogeneity and peak pressure in equal channel angular pressing – A study based on 3D finite element analysis, J Manuf Proc, 17 (2015) 88–97.

[19] R. Luri, C. J. Luis Perez, D. Salcedo, I. Puertas, J. Leon, I. Perez J. P. Fuertes. Evolution of damage in AA-5083 processed by equal channel angular extrusion using different die geometries, J Mater Proc Tech, 211 (2011) 48–56.

[20] S. Li, M.A.M. Bourke, I.J. Beyerlein, D. J. Alexander and B. Clausen, Finite element analysis of the plastic deformation zone and working load in equal channel angular extrusion, Mater Sci Eng, 382A (2004), 217–36.

[21] M. Kazeminezhad and E. Hosseini, Modeling of induced empirical constitutive relations on materials with FCC, BCC, and HCP crystalline structures: severe plastic deformation, Int J Adv Manuf Tech, 47 (2010) 1033–9.

[22] A. Kacem, A. Krichen, P. Y. Manach, S. Thuillier and J. W. Yoon, Failure prediction in the hole-flanging process of aluminium alloys. Eng Fract Mech, 99 (2013) 251–65.

[23] Y. Bao and T. Wierzbicki, On fracture locus in the equivalent strain and stress triaxiality space, Int J Mech Sci, 46 (2004) 81–98.

[24] H. L. Yu and D. Y. Jeong, Application of a stress triaxiality dependent fracture criterion in the finite element analysis of unnotched Charpy specimens, Theo App Fract Mech, 54 (2010) 54–62.