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On the numerical simulation of sheet metal blanking process

  • Thematic Issue: Computational Methods in Manufacturing
  • Published:
International Journal of Material Forming Aims and scope Submit manuscript

Abstract

The use of the blanking process has been widely spread in mass production industries. In this technique, the quality of the final product is directly related to the setting parameters of the process and the material response of the sheet. In the present work, a general framework based on the finite element method for the simulation of the sheet metal blanking process is presented. The proposed approach properly addresses all the numerical challenges related to blanking. First, an extension of elasto-viscoplastic constitutive equations for the large strain regime is used to take into account the material strain-rate sensitivity. Then, the inertial effects coming from high velocity operations are considered by means of an implicit time integration scheme. Moreover, the frictional contact interactions are simulated with the classical Coulomb law and an energetically consistent formulation of area regularization. Finally, ductile fracture is modeled thanks to the element deletion method coupled with a fracture criterion. The blanking process is then simulated for different setting parameters. The accuracy of this approach is evaluated by comparing the numerical predictions to experimental results for both quasi-static and dynamic conditions. Good agreement is found between experimental and numerical results for all cases.

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Acknowledgments

This research has been funded by the Interuniversity Attraction Poles Program (IAP 7/21) initiated by the Belgian Science Policy Office. C. Canales would also like to thank the FRIA-FNRS fund for its financial support.

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Authors and Affiliations

  1. Department of Aerospace and Mechanical Engineering, University of Liège, 13a Allèe de la dècouverte, 4000, Liège, Belgium

    Cristian Canales, Philippe Bussetta & Jean-Philippe Ponthot

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  1. Cristian Canales
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  2. Philippe Bussetta
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  3. Jean-Philippe Ponthot
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Correspondence to Cristian Canales.

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Canales, C., Bussetta, P. & Ponthot, JP. On the numerical simulation of sheet metal blanking process. Int J Mater Form 10, 55–71 (2017). https://doi.org/10.1007/s12289-015-1270-7

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