Axisymmetric Strain Stability in Sheet Metal Deformation

Abstract

Production of axisymmetric pieces by technology of sheet metal drawing is widespread nowadays. So the calculation analysis of capacity and forces necessary for deformation is of special interest. The length of cylindrical pieces with axisymmetric deformation is limited by loss of stability and buckling due to the development of side strains. A new technological process is based on making considerable number of folds—18 - 26 with the amplitude of 0.8 - 0.9 mm— before the deformation or immediately after the partial one. That reduces the stiffness of billets and prevents from development of large size buckles. A new technological process is developed for producing a long run of high-quality products.

Share and Cite:

Brovman, T. (2013) Axisymmetric Strain Stability in Sheet Metal Deformation. International Journal of Nonferrous Metallurgy, 2, 110-115. doi: 10.4236/ijnm.2013.23016.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] R. Hill, “Mathematical Theory of Plasticity,” Clarendon Press, Oxford University Press, 1950, 407 pages.
[2] L. A. Shofman, “Theory and Calculation of Cold Forming,” Machine-Building, Moscow, 1964, 375 pages. [in Russian]
[3] M. Ja. Brovman, “Application of the Theory of Plasticity in Rolling,” Metallurgiya, Moscow, 1991, 265 pages. [in Russian]
[4] H. Vergus and R. Sowerby, “The Pure Plastic Bending of Laminated Sheet Metals,” Journal of Mechanical Sciences, Vol. 17, No. 1, 1975, pp. 31-51.
[5] T. V. Brovman, “Sheet Stamping Forces Calculation,” Vestnik Mashinostroyenia, No. 3, 2004, pp. 61-63. [in Russian]

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.