Advertisement

Rational parameters of profiled workpieces for an upsetting process

  • Iaroslav G. Zhbankov
  • Oleg E. Markov
  • Alexander V. Perig
ORIGINAL ARTICLE

Abstract

An upsetting process of specially profiled workpieces was proposed. Modeling of a workpiece upsetting, profiled as a cylinder with conical and cylindrical ledges was done using a finite element method. During the upsetting of these workpieces, buckling occurs. Schemes of upsetting a workpiece with conical ledges result in a decrease in the irregularity of the equivalent strain distribution in the longitudinal section. This scheme produces a zone of minimal equivalent strain decrease in the workpiece. It was found that during the upsetting process of the workpiece with a conical ledge on the lateral surface and in the center, compressive stresses appear. These stresses contribute to the closure of voids in an ingot during the upsetting process. Rational workpiece parameters were found which allow the production of forgings with minimal irregularity of equivalent strain distribution, minimal formation of a barrel, and a favorable stress state in the workpiece. Experimental research, which confirms the advantages of upsetting specially profiled workpieces, was done.

Keywords

Forging Upsetting Strain Stress FEM Workpiece Ledge 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Chen K, Yang Y, Shao G, Liu K (2012) Strain function analysis method for void closure in the forging process of large sized steel ingot. Comput Mater Sci 51:72–77CrossRefGoogle Scholar
  2. 2.
    Kim Y, Cho J, Bae W (2011) Efficient forging process to improve the closing effect of the inner void on an ultra-large ingot. J Mater Process Technol 211:1005–1013CrossRefGoogle Scholar
  3. 3.
    Zhbankov IG, Perig AV (2013) Forging of ingots without hot tops. Mater Manuf Process 28:229–235CrossRefGoogle Scholar
  4. 4.
    Zhang X-X, Cui Z-S, Chen W, Li Y (2009) A criterion for void closure in large ingot during hot forging. J Mater Process Technol 209:1950–1959CrossRefGoogle Scholar
  5. 5.
    Aliiev IS, Markov OE, Oleshko MV (2010) Application of the method upsetting billet by rings during forging shaft. Mater Work Press 2(23):94–98Google Scholar
  6. 6.
    Aliiev IS, Markov OE, Zhbankov IG, Bliznyuk SA (2010) Influence eversion of billet by conical plates on strain state of billet. Mater Work Press 3(24):64–69Google Scholar
  7. 7.
    Dzugutov MY (1977) Forging of high alloyed steels. Metallurgia, Moscow (in Russian)Google Scholar
  8. 8.
    Tiurin VA (1978) Theory and processes of heavy forging on presses. Metallurgia, Moscow (in Rusiian)Google Scholar
  9. 9.
    Ohrimenko YM (1967) Increasing efficiency and quality of works in forging production. J Kuznecno Shtampovochnoe Proizvodstvo 5:2–7 (in Russian)Google Scholar
  10. 10.
    Sokolov LN, Aliiev IS, Markov OE (2011) Technology of forging. DSEA, Kramatorsk (in Ukrainian)Google Scholar
  11. 11.
    Jafarzadeh H, Zadshakoyan M (2011) Numerical and experimental studies of splines produced by injection forging process. Mater Manuf Process 5:703–712CrossRefGoogle Scholar
  12. 12.
    Chen J, Chandrashekhara K, Richards VL, Lekakh SN (2010) Three-dimensional nonlinear finite element analysis of hot radial forging process for large diameter tubes. Mater Manuf Process 7:669–678CrossRefGoogle Scholar
  13. 13.
    Liu L, Liao B, Li D, Li Q, Wang Y, Yang Q (2011) Thermal–elastic–plastic simulation of internal stress fields of quenched steel 40Cr cylindrical specimens by FEM. Mater Manuf Process 5:732–739CrossRefGoogle Scholar
  14. 14.
    Mao C, Zhou ZX, Ren YH, Zhang B (2010) Analysis and FEM simulation of temperature field in wet surface grinding. Mater Manuf Process 6:399–406CrossRefGoogle Scholar
  15. 15.
    Vafaeesefat A (2011) Finite element simulation for blank shape optimization in sheet metal forming. Mater Manuf Process 1:93–98CrossRefGoogle Scholar
  16. 16.
    Du YY, Shi YS, Wei QS (2010) Finite element simulation of cold isostatic pressing of the selective laser-sintered components. Mater Manuf Process 12:1389–1396CrossRefGoogle Scholar
  17. 17.
    Zhbankov IG, Perig AV (2013) Intensive shear deformation in billets during forging with specially formed anvils. Mater Manuf Process 28:577–583CrossRefGoogle Scholar
  18. 18.
    Perig AV, Zhbankov IG, Matveyev IA, Palamarchuk VA (2013) Shape effect of angular die external wall on strain unevenness during equal channel angular extrusion. Mater Manuf Process 28:916–922Google Scholar
  19. 19.
    Semenov EI and other (1985) Forging and stamping: reference book. In 4 V. Mashinostroenye, Moscow, V. 1 (in Russian)Google Scholar

Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  • Iaroslav G. Zhbankov
    • 1
  • Oleg E. Markov
    • 1
  • Alexander V. Perig
    • 2
  1. 1.Metal Forming DepartmentDonbass State Engineering AcademyKramatorskUkraine
  2. 2.Manufacturing Processes and Automation Engineering DepartmentDonbass State Engineering AcademyKramatorskUkraine

Personalised recommendations