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An upper-bound analysis for frictionless TCAP process

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Abstract

Tubular channel angular pressing (TCAP) process was proposed recently as a novel severe plastic deformation technique for producing ultrafine grain and nanostructured tubular components. In this paper, an upper-bound approach was used to analyze the TCAP process. Deformation of the material during TCAP process is analyzed using upper-bound analysis to determine maximum required load. The effects of TCAP parameters such as channel and curvature angles, deformation ratio (R 1/R 2) and tube material on the process pressure were investigated. The results showed that an increase in the second channel angle and decrease in the ratio R 1/R 2 lead to lower process loads. In the first and third curvature angles ranging from 25 to 65°, the required load remains almost constant. The apparent punch load decrease when hardening exponent n is increased. To verify the theoretical results, the finite element (FE) modeling was employed. Good agreement was observed between the predicted pressure from upper-bound analysis and FE results.

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References

  1. Valiev R.Z., Islamgaliev R.K., Alexandrov I.V.: Bulk nanostructured materials from severe plastic deformation. Prog. Mater. Sci. 45, 103–189 (2000)

    Article  Google Scholar 

  2. Valiev R.Z., Langdon T.G.: Principles of equal-channel angular pressing as a processing tool for grain refinement. Prog. Mater. Sci. 51, 881–981 (2006)

    Article  Google Scholar 

  3. Faraji G., Jafarzadeh H., Jeong H.J., Mashhadi M.M., Kim H.S.: Numerical and experimental investigation of the deformation behavior during the accumulative back extrusion of an AZ91 magnesium alloy. Mater. Des. 35, 251–258 (2012)

    Article  Google Scholar 

  4. Toth L.S., Arzaghi M., Fundenberger J.J., Beausir B., Bouaziz O., Arruffat-Massion R.: Severe plastic deformation of metals by high-pressure tube twisting. Scripta Mater. 60, 175–177 (2009)

    Article  Google Scholar 

  5. Mohebbi M.S., Akbarzadeh A.: Accumulative spin-bonding (ASB) as a novel SPD process for fabrication of nanostructured tubes. Mater. Sci. Eng. A 528, 180–188 (2010)

    Article  Google Scholar 

  6. Faraji G., Mashhadi M.M., Kim H.S.: Tubular channel angular pressing (TCAP) as a novel severe plastic deformation method for cylindrical tubes. Mater. Lett. 65, 3009–3012 (2011)

    Article  Google Scholar 

  7. Faraji G., Babaei A., Mashhadi M.M., Abrinia K.: Parallel tubular channel angular pressing (PTCAP) as a new severe plastic deformation method for cylindrical tubes. Mater. Lett. 77, 82–85 (2012)

    Article  Google Scholar 

  8. Faraji G., Mashhadi M.M., Kim H.S.: Deformation behavior in tubular channel angular pressing (TCAP) using triangular and semicircular channels. Mater. Trans. 53, 8–12 (2012)

    Article  Google Scholar 

  9. Paydar M.H., Reihanian M., Ebrahimi R., Dean T.A., Moshksar M.M.: An upper-bound approach for equal channel angular extrusion with circular cross-section. J. Mater. Proc. Technol. 198, 48–53 (2008)

    Article  Google Scholar 

  10. Segal V.M.: Slip line solutions, deformation mode and loading history during equal channel angular extrusion. Mater. Sci. Eng. A 345, 36–46 (2003)

    Article  Google Scholar 

  11. Faraji G., Mashhadi M.M., Abrinia K., Kim H.S.: Deformation behavior in the tubular channel angular pressing (TCAP) as a noble SPD method for cylindrical tubes. Appl. Phys. A 107, 819–827 (2012)

    Article  Google Scholar 

  12. Alkorta J., Sevillano J.G.: A comparison of FEM and upper-bound type analysis of equal-channel angular pressing (ECAP). J. Mater. Proc. Technol. 141, 313–318 (2003)

    Article  Google Scholar 

  13. Lee D.N.: An upper-bound solution of channel angular deformation. Scripta Mater. 43, 115–118 (2000)

    Article  Google Scholar 

  14. Altan B.S., Purcek G., Miskioglu I.: An upper-bound analysis for equal-channel angular extrusion. J. Mater. Proc. Technol. 168, 137–146 (2005)

    Article  Google Scholar 

  15. Eivani A.R., Karimi Taheri A.: An upper bound solution of ECAE process with outer curved corner. J. Mater. Proc. Technol. 182, 555–563 (2007)

    Article  Google Scholar 

  16. Narooei K., Karimi Taheri A.: A new model for prediction the strain field and extrusion pressure in ECAE process of circular cross section. Appl. Math. Model. 34, 1901–1917 (2010)

    Article  MATH  Google Scholar 

  17. Avitzur B.: Metal Forming Processes and Analysis. McGraw-Hill, New York (1968)

    Google Scholar 

  18. Hill R.: The Mathematical Theory of Plasticity. Oxford University Press, New York (1967)

    Google Scholar 

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Authors and Affiliations

  1. Department of Mechanical Engineering, University College of Engineering, University of Tehran, 11155-4563, Tehran, Iran

    G. Faraji, K. Abrinia & M. M. Mashhadi

  2. Department of Engineering Design and Manufacture, University of Malaya, 50603, Kuala Lumpur, Malaysia

    G. Faraji & M. Hamdi

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  1. G. Faraji
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  2. K. Abrinia
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  3. M. M. Mashhadi
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  4. M. Hamdi
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Correspondence to G. Faraji.

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Faraji, G., Abrinia, K., Mashhadi, M.M. et al. An upper-bound analysis for frictionless TCAP process. Arch Appl Mech 83, 483–493 (2013). https://doi.org/10.1007/s00419-012-0697-2

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  • DOI: https://doi.org/10.1007/s00419-012-0697-2

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