Skip to main content
SpringerLink
Log in

Empirically derived equations for predicting springback in bending

  • Published:
Journal of Applied Metalworking

Conclusions

  1. (1)

    An empirical equation has been developed that predicts springback for a variety of die geometries on the basis of yield strength, thickness, and bend radius; and for some die conditions for bend angle, hold-down, plan view curvature, and punch-to-die clearance. Since an internally consistent rationalization of the predictive equation has also been developed, the predictive equation would appear to have some general validity. However, the extent of this validity cannot be established until it has been more thoroughly evaluated.

  2. (2)

    By using variation analysis of the predictive equation for springback, important insights have been established about the interrelationships between variation in springback; variation in yield strength; variation in thickness divided by the nominal thickness, (R/t); and nominal yield strength. This analysis indicates the importance of interactions between the causative variables on variations in springback.

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

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. B.S. Levy and R. H. Hilsen: Inland Steel Company, unpublished experimental work, 1978.

  2. Jack Stepanian: Ford Motor Company, private communication, October 15, 1981.

  3. R. G. Davies: “Springback in High Strength Steels,”J. Appl. Metal-work., January 1981, vol. 1, no. 4.

  4. C. A. Queener and R. J. DeAngelis: “Elastic Springback and Residual Stresses in Sheet Metal Formed by Bending,”Trans. ASM, 1968, vol. 61, p. 757.

    CAS  Google Scholar 

  5. N. Kuhn: “On the Springback Behavior of Low Carbon Steel Sheet After Stretch Bending,”J. Australian Inst. Met., February 1967, vol. 12, no. 1, p. 71.

    CAS  Google Scholar 

  6. J. D. Russell and N. L. Kuhn: “A Mathematical Model of Sheet Bending Applied to Corrugating,”J. Australian Inst. Met., February 1966, vol. 11, no. 1, p. 38.

    Google Scholar 

  7. C. E. Gebhardt and O. M. Sidebottom: “Computer Program Calculates Springback in Blooms and Plates Formed by Bending,”Manuf. Eng., April 1980, p. 96.

  8. F. J. Gardiner: “The Springback of Metal,”Trans. ASM, January 1957, p. 1.

  9. Thomas H. Naylor,et al.:Computer Simulation Techniques, John Wiley, New York, 1966.

    Google Scholar 

  10. W. R. Granzow: “A Portable Springback Tester for In-Plant Determination of the Strength of Sheet Steels,” SAE Paper 830238, February 28-March 4, 1983.

Download references

Author information

Authors and Affiliations

  1. Inland Steel Research Laboratories, 3001 E. Columbus Dr., 46312, East Chicago, IN

    B. S. Levy

Authors
  1. B. S. Levy
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Levy, B.S. Empirically derived equations for predicting springback in bending. J. Applied Metalworking 3, 135–141 (1984). https://doi.org/10.1007/BF02833692

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02833692

Keywords

Search

Navigation