High-speed blanking of copper alloy sheets: Material modeling and simulation

Ch Husson, S. Ahzi, L. Daridon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

To optimize the blanking process of thin copper sheets (≈1. mm thickness), it is necessary to study the influence of the process parameters such as the punch-die clearance and the wear of the punch and the die. For high stroke rates, the strain rate developed in the work-piece can be very high. Therefore, the material modeling must include the dynamic effects.For the modeling part, we propose an elastic-viscoplastic material model combined with a non-linear isotropic damage evolution law based on the theory of the continuum damage mechanics. Our proposed modeling is valid for a wide range of strain rates and temperatures. Finite Element simulations, using the commercial code ABAQUS/Explicit, of the blanking process are then conducted and the results are compared to the experimental investigations. The predicted cut edge of the blanked part and the punch-force displacement curves are discussed as function of the process parameters. The evolution of the shape errors (roll-over depth, fracture depth, shearing depth, and burr formation) as function of the punch-die clearance, the punch and the die wear, and the contact punch/die/blank-holder are presented. A discussion on the different stages of the blanking process as function of the processing parameters is given. The predicted results of the blanking dependence on struinrate and temperature using our modeling are presented (for the plasticity and damage). The comparison our model results with the experimental ones shows n good agreement.

Original languageEnglish
Title of host publicationProceedings - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dyanmic Loading, EURODYMAT 2006
Pages1189-1194
Number of pages6
DOIs
Publication statusPublished - 1 Aug 2006
Event8th International Conference on Mechanical and Physical Behaviour of Materials under Dyanmic Loading - Dijon, France
Duration: 11 Sep 200615 Sep 2006

Publication series

NameJournal De Physique. IV : JP
Volume134
ISSN (Print)1155-4339
ISSN (Electronic)1764-7177

Conference

Conference8th International Conference on Mechanical and Physical Behaviour of Materials under Dyanmic Loading
CountryFrance
CityDijon
Period11/9/0615/9/06

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Husson, C., Ahzi, S., & Daridon, L. (2006). High-speed blanking of copper alloy sheets: Material modeling and simulation. In Proceedings - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dyanmic Loading, EURODYMAT 2006 (pp. 1189-1194). (Journal De Physique. IV : JP; Vol. 134). https://doi.org/10.1051/jp4:2006134181