Skip to main content

Forming Processes Design Oriented to Prevent Ductile Fractures

  • Chapter
Advanced Manufacturing Systems and Technology

Part of the book series: International Centre for Mechanical Sciences ((CISM,volume 372))

Abstract

During cold forming processes ductile fractures are sometimes encountered, depending on the operating parameters and on the material properties and determining the production of defective components to be discarded; for this reason the development of a general approach for the prediction of this type of defects is particularly suitable and this aim has been pursued by a large number of researchers in the last two decades. In the paper the most important and diffused models are described and analysed in order to outline the advantages offered by each of them. Some applications to typical metal forming processes are presented, carrying out a comparison between the numerical predictions and the experimental verifications.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Dodd, B., Defect in Cold Forging. Final Report the Materials and Defects Sub-group of the International Cold Forging Group, Osaka, 1993.

    Google Scholar 

  2. Gelin, J. C., Predelanu, M., Recent Advances in Damage Mechanics: Modelling and Computational Aspects, Proc. of Numiform ‘82, pp. 89–98, 1992.

    Google Scholar 

  3. Tvergaard, V., Influence of Void Nucleation on Ductile Shear Fracture at a Free Surface, J. Mech. Phys. Solids, vol. 30, no. 6, pp. 339–425, 1982.

    Article  Google Scholar 

  4. Predeleanu, M., Finite Strain Plasticity Analysis of Damage Effects in Metal Forming Processes, Computational Methods for Predicting Material Processing Defects, pp. 295–307, 1987.

    Google Scholar 

  5. Hill, R., A General Theory of Uniqueness and Stability for Inelastic Plastic Solids, J. Mech. Phys. Solids, vol. 6, pp. 236–249, 1958.

    Article  MATH  Google Scholar 

  6. Storen, S., Rice, J.R., Localized Necking in Thin Sheets, J. Mech. Phys. Solids, vol. 23, pp. 421–441, 1975.

    Article  Google Scholar 

  7. Barcellona, A., Prediction of Ductile Fracture in Cold Forging Processes by FE Simulations, Proc. of X CAPE, pp., 1994.

    Google Scholar 

  8. Freudenthal, A. M., The Inelastic Behaviour of solids, Wiley, NY, 1950.

    Google Scholar 

  9. Clift, S. E., Hartley, P., Sturgess, C. E. N., Rowe, G. W., Fracture Prediction in Plastic Deformation Processes, Int. J. of Mech. Sci., vol. 32, no. 1, pp. 1–17, 1990.

    Article  Google Scholar 

  10. Oyane, M., Sato, T., Okimoto, K., Shima, S., Criteria for Ductile Fracture and their Applications, J. of Mech. Work Tech., vol. 4, pp. 65–81, 1980.

    Article  Google Scholar 

  11. Alberti, N., Barcellona, A., Masnata, A., Micari, F., Central Bursting Defects in Drawing and Extrusion: Numerical and Ultrasonic Evaluation, Annals of CIRP, Vol.42/1/1993, pp. 269–272.

    Google Scholar 

  12. Cockroft, M. G., Latham, D. J., Ductility and the Workability of Metals, J. Inst. Metals, vol. 96, pp. 33–39, 1968.

    Google Scholar 

  13. Brozzo, P., De Luca, B., Rendina, R., A New Method for the Prediction of Formability Limits in Metal Sheets, Proc. of the 7th Conference of the International Deep Drawing Research Group, 1972.

    Google Scholar 

  14. Ayada, M., Higashimo, T. Mori, K., Central Bursting in Extrusion of Inhomogeneous Materials, Advanced Technology of Plasticity, vol. 1, pp. 553–558, 1987.

    Google Scholar 

  15. McClintock, F., Kaplan, S. M., Berg, C. A., Ductile Fracture by the Hole Growth in Shear Bands, Int. J. of Mech. Sci., vol. 2, p. 614, 1966.

    Google Scholar 

  16. Rice, J., Tracey, D., On Ductile Enlargement of Voids in Triaxial Stress Fields, J. of Mech. Phys. Solids, vol. 17, 1969.

    Google Scholar 

  17. Osakada, K., Mori, K., Kudo, H., Prediction of Ductile Fracture in Cold Forming, Annals of the CIRP, Vol. 27 /1, pp. 135–139, 1978.

    Google Scholar 

  18. Gurson, A. L., Continuum Theory of Ductile Rupture by Void-Nucleation and Growth: Yield Criteria and Flow Rules for Porous Ductile Media, J. of Eng. Mat. Tech., vol. 99, pp. 2–15, 1977.

    Article  Google Scholar 

  19. Tvergaard, V., Ductile Fracture by Cavity Nucleation between larger voids, J. Mech. Phys. Solids, vol. 30, no. 4, pp. 265–286, 1982.

    Article  MATH  MathSciNet  Google Scholar 

  20. Needleman, A., Tvegaard, V., An Analysis of Ductile Rupture in Notched Bars, J. of Mech. Phys. Solids, vol. 32, No. 6: 461–490, 1984.

    Article  Google Scholar 

  21. Needleman, A., Rice, J.R., in Mechanics of Sheet Metal Forming edited by D.P. Koistinen et al., Plenum Press, New York, p. 237, 1978.

    Google Scholar 

  22. Chu, C.C., Needleman, A., Jnl. Eng. Mat. Tech., vol. 102, pp. 249–262, 1980.

    Article  Google Scholar 

  23. Alberti, N., Barcellona, A., Cannizzaro, L., Micari, F., Predictions of Ductile Fractures in Metal Forming Processes: an Approach Based on the Damage Mechanics, Annals of CIRP, vol. 43 /1, pp. 207–210, 1994.

    Article  Google Scholar 

  24. Alberti, N., Cannizzaro, L., Micari, F., Prediction of Ductile Fractures Occurrence in Metal Forming Processes, Proc. of the II AITEM Conference, pp. 157–165, 1995.

    Google Scholar 

  25. Fratini, L., Micari, F., Lombardo, A., Material characterization for the prediction of ductile fractures occurrence: an inverse approach, accepted for the publication on the Proceedings of the Metal Forming ‘86 Conference.

    Google Scholar 

  26. Shima, S., Oyane, M., Plasticity Theory for Porous Metals, Int. J. of Mech. Sci., vol. 18, pp. 285, 1986.

    Article  Google Scholar 

  27. Kobayashi, S., Oh, S. I., Altan, T., Metal Forming and the Finite Element Method, edited by the Oxford University Press, 1989.

    Google Scholar 

  28. Aravas, N., The Analysis of Void Growth that Leads to Central Bursts during Extrusion, J. of Mech. Phys. Solids, vol. 34, no. 1, pp. 55–79, 1986.

    Article  Google Scholar 

  29. Alberti, N., Borsellino, C., Micari, F., Ruisi, V.F., Central Bursting Defects in the Drawing of Copper Rods: Numerical Predictions and Experimental Tests, Transactions of NAMRI/SME, vol. 23, pp. 85–90, 1995.

    Google Scholar 

  30. Borsellino, C., Micari, F., Ruisi, V.F., The Influence of Friction on Central Bursting in the Drawing Process of Copper Specimens, Proceedings of the International Conference on Advances in Materials and Processing Technologies (AMPT’95), pp. 1230–1239, 1995.

    Google Scholar 

  31. Avitzur, B., Analysis of Central Bursting Defects in Extrusion and Wire Drawing, Trans. ASME, ser. B, vol. 90, pp. 79–91, 1968.

    Google Scholar 

  32. Orbegozo, J. I., Fracture in wire drawing, Annals of CIRP, vol. 16 /1, pp. 319–322, 1968.

    Google Scholar 

  33. Avitzur, B., Choi, C. C., Analysis of Central Bursting Defects in Plane Strain Drawing and Extrusion, Trans. ASME, ser. B, vol. 108, pp. 317–321, 1986.

    Article  Google Scholar 

  34. Moritoki, H., Central Bursting in Drawing and Extrusion under Plane Strain, Advanced Technology of Plasticity, vol.l, pp. 441–446, 1990.

    Google Scholar 

  35. Hingwe, A. K., Greczanik, R. C., Knoerr, M., Prediction of Internal Defects by Finite Elements Analysis, Proc. of the 9th International Cold Forging Congress, pp. 209216, 1995.

    Google Scholar 

  36. Micari, F., Fratini, L., Lo Casto, S., Alberti, N., Prediction of Ductile Fracture Occurrence in Deep Drawing of Square Boxes, accepted for the publication on the Annals of CIRP, vol. 45 /1, 1996.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1996 Springer-Verlag Wien

About this chapter

Cite this chapter

Alberti, N., Micari, F. (1996). Forming Processes Design Oriented to Prevent Ductile Fractures. In: Kuljanic, E. (eds) Advanced Manufacturing Systems and Technology. International Centre for Mechanical Sciences, vol 372. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2678-3_5

Download citation

  • DOI: https://doi.org/10.1007/978-3-7091-2678-3_5

  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-211-82808-3

  • Online ISBN: 978-3-7091-2678-3

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics