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Experimental investigations and FEM simulations of parameters influencing the Fe-(wt.3%)Si shearing process

Published online by Cambridge University Press:  06 November 2012

Haykel Marouani*
Affiliation:
Universitéde Monastir, École Nationale d’Ingénieurs de Monastir, Laboratoire de Génie Mécanique, Avenue Ibn El Jazzar, 5019 Monastir, Tunisie
Mohamed Rachik
Affiliation:
Laboratoire Roberval, UMR CNRS 6253, Université de Technologie de Compiègne, BP 20529, 60205 Compiègne, France
Eric Hug
Affiliation:
Laboratoire de Cristallographie et Sciences des Matériaux, UMR CNRS 6508, Université de Caen, 6 Bd Maréchal Juin, 14050 Caen 4, France
*
a Corresponding author: Haykel.marouani@enim.rnu.tn
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Abstract

The sheet metal forming by shearing is one of the most used processes in industries. The reliability of the obtained parts depends on geometrical parameters (shape of the tools, punch radius, clearances, velocity...) and materials properties (metal behavior, friction...). In this paper, two experimental parameters are investigated: the punch – die clearance and the punch velocity. A 0.65 mm thickness sheet of a non-oriented full-process Fe-(wt.3%)Si is used. The analyses are done through the load-stroke curve and the height repartition of different defects on the part edge. A numerical approach is proposed to simulate the shearing process and to handle the ductile fracture (which is performed using Abaqus/Explicit software). This work is based on a non-iterative explicit algorithm combined with a mesh adaptivity method (Arbitrary Lagrangian Eulerian formulation). The Gurson–Tvergaard–Needleman model is then used to describe the cut edge profile occurring during the process.

Type
Research Article
Copyright
© AFM, EDP Sciences 2012

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