Paper Titles
Integration of Electromagnetic Calibration into the Deep Drawing Process of an Industrial Demonstrator Part
p.435
Case Studies and Applications of Flowforming to Aircraft Engine Component Manufacturing
p.443
Multi Shape Sheet Hydroforming Tooling Design
p.453
Improvement of Filling of Die Corners in Box-Shaped Tube Hydroforming by Control of Wrinkling
p.461
Modeling Flexforming (Fluid Cell Forming) Process with Finite Element Method
p.469
Integrated Tube and Double Sheet Hydroforming Technology - Optimised Process for the Production of a Complex Part
p.477
Hydromechanical Deep Drawing of Funerary Vases: A Suitable Alternative to the Traditional Forming Processes
p.485
Validation of a New Finite Element for Incremental Forming Simulation Using a Dynamic Explicit Approach
p.495
Determination of Strain in Incremental Sheet Forming Process
p.503

Modeling Flexforming (Fluid Cell Forming) Process with Finite Element Method

Article Preview

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.

You might also be interested in these eBooks
Sheet Metal 2007 View Preview

Info:

Periodical:

Key Engineering Materials (Volume 344)

Pages:

469-476

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.344.469

Citation:

Cite this paper

Online since:

July 2007

Authors:

H. Ali Hatipoğlu, Naki Polat, Arif Koksal, A. Erman Tekkaya

Keywords:

Finite Element Model (FEM), Flexforming, Fluid Cell Forming, Springback, Wrinkling

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] H. Palaniswamy, G. Ngaile and T. Altan: J. Mat. Process. Tech. Vol. 146 (2004), p.28.

Google Scholar

[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).

Google Scholar

[3] L. Noels, L. Stainier and J. Ponthot: J. Comp. and App. Math. Vol. 168 (2004), p.331.

Google Scholar

[4] L. M. Kutt, A. B. Pifko, J. A. Nardiello and J. M. Papazian: Computers & Structures Vol. 66 (1998), p.1.

Google Scholar

[5] [10] [15] [20] [25] [30] 5 10 15 20 25 pressure (p ) [MPa] bulge depth [mm] experiment model fracture.

Google Scholar