Determinación de los indicadores de deformación bajo tensiones multiaxiales de embutición. Aplicación al acero electrocincado DC-05 (UNE en ISO 10130)

V. Miguel; A. Calatayud; C. Ferrer

doi:10.3989/revmetalm.2007.v43.i2.61

A methodology to obtain strain indicators under deep drawing multiaxial stresses. Application to DC-05 electrogalvanized steel (UNE in ISO 10130)

Authors

V. Miguel Instituto de desarrollo Regional, Universidad de Castilla-La Mancha
A. Calatayud Instituto de desarrollo Regional, Universidad de Castilla-La Mancha
C. Ferrer Dpto. de Ingeniería Mecánica y de Materiales, Universidad Politécnica de Valencia

DOI:

https://doi.org/10.3989/revmetalm.2007.v43.i2.61

Keywords:

Deep-drawing, Anisotropy, Deformation, Friction, Electrogalvanized

Abstract

In this work a methodology to investigate deep drawing quality steel sheets deformation tendency under multiaxial deep drawing stresses has been proposed. The method consists in assaying a sheet in a wedge die in order to introduce a pure shear estate in the material. 0º, 45º and 90º rolling directions are selected in the assays, and transversal strain is the variable considered in them. A strain coefficient ‰ has been defined in order to evaluate thickness variations in the test. Almost no changes in thickness have been registered and this indicates that strain carried out in the test is similar to that taking place in deep drawing. The stress necessary for practice a certain plastic deformation is obtained too and a potential function between them is formulated. Indicators presented in this work are compared to anisotropy and strength coefficients obtained in normalized tensile tests. These results allow us to justify the steel behaviour in the cup deep drawing processes related to ear forming.

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References

[1] D.M. Woo, Int. J. Mech. Eng. Sci. 6 (1964) 116-131. doi:10.1243/JMES_JOUR_1964_006_021_02

[2] UNE EN 10152, 1995, p.18.

[3] R.Hill, The Mathematical Theory of Plasticity, Ed. Clarendon Press, Oxford, Inglaterra, 1998, pp. 321-325.

[4] Z. Marciniak, J.L. Duncan, S.J. Hu, Mechanics of Sheet Metal Forming; Ed. Butterworth- Heinemann., 2nd ed, Inglaterra, 2002, p.11.

[5] A.M. Zaky, A.B. Nassr, M.G. El-Sebaie, J. Mater. Process. Technol., 76 (1998) 203-211. doi:10.1016/S0924-0136(97)00349-X

[6] K.Sipos, J. Martínez, N. Burgos, H. Presenti, Rev. Metal. Madrid Vol. Extr. (2005) 58-63.

[7] D.C. Chiang, S. Kobayashi, J. Eng. Ind., Trans. ASME 11 (1966) 443-448.

[8] N. Kawai, N. Hayashi, S. Matsui, Trans. ASME, 110 (1998) 376-383.

[9] UNE-EN 10130, 1999, p.4.

[10] V. Miguel, Tesis Doctoral, Universidad Politécnica de Valencia, 2005.

[11] V. Miguel, C. Ferrer, A.Calatayud, A. Martínez, J.Coello, III Cong. Ibérico de Tribología, Guimaráes, Portugal, 2005, Sousa Miranda (Ed), 1-7.

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Published

2007-04-30

How to Cite

Miguel, V., Calatayud, A., & Ferrer, C. (2007). A methodology to obtain strain indicators under deep drawing multiaxial stresses. Application to DC-05 electrogalvanized steel (UNE in ISO 10130). Revista De Metalurgia, 43(2), 146–156. https://doi.org/10.3989/revmetalm.2007.v43.i2.61

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Issue

Vol. 43 No. 2 (2007)

Section

Articles

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