IJNM  Vol.2 No.3 , July 2013
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.
Cite this paper: Brovman, T. (2013) Axisymmetric Strain Stability in Sheet Metal Deformation. International Journal of Nonferrous Metallurgy, 2, 110-115. doi: 10.4236/ijnm.2013.23016.

[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]