Affiliation:
1. Tusaş Aerospace Industries(TAI)
2. Technical University of Dortmund
Abstract
In this paper, the flexforming process is modeled by finite element method in order to
investigate the operation window of the problem. Various models are established using explicit
approach for the forming operation and implicit approach for the unloading one. In all analyses the
rubber diaphragm has been modeled revealing that the modeling of this diaphragm is essential.
Using the material Aluminum 2024 T3 alclad sheet alloy, three basic experiments are conducted:
Bending of a straight flange specimen, bending of a contoured flange specimen and bulging of a
circular specimen. By these experiments the effects of blank thickness, die bend radius, flange
length and orientation of the rolling direction of the part have been investigated. Experimental
results are compared with finite element results to verify the computational models.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference5 articles.
1. H. Palaniswamy, G. Ngaile and T. Altan: J. Mat. Process. Tech. Vol. 146 (2004), p.28.
2. P. Kulkarni and S. Prabhakar: Influence of the Effect of Strain Rates on Springback in Aluminum 2024 (ISO AlCuMg1), 4th European Ls-Dyna Users Conference, (2003).
3. L. Noels, L. Stainier and J. Ponthot: J. Comp. and App. Math. Vol. 168 (2004), p.331.
4. L. M. Kutt, A. B. Pifko, J. A. Nardiello and J. M. Papazian: Computers & Structures Vol. 66 (1998), p.1.
5. [5] [10] [15] [20] [25] [30] 5 10 15 20 25 pressure (p ) [MPa] bulge depth [mm] experiment model fracture.
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