Experimental Characterization of Coated Aluminum Sheets for Deep Drawing Applications

authored by: Mariem Abdennadher, Anas Bouguecha, Bernd Arno Behrens, Eugen Stockburger, Riadh Elleuch
Abstract: Sheet metal forming is widely used in many industries, especially in manufacturing automotive body parts and white goods. For many years, coated kitchen utensils are being used because of their properties such as non-stick property. The most used coating is polytetrafluoroethylene (PTFE), known as Teflon. Kitchen utensils are mainly manufactured by deep drawing processes, which require a good knowledge of the behaviour and the formability of the material. To characterize the formability of the sheets, it is necessary to determine the forming limit diagram (FLD). The FLD can be obtained throughout different essays such as Marciniack test and Nakazima test. With the FLD it is possible to compare the formability of different materials. Also, knowing the FLD can reduce the process’ development time. In this work, aluminium sheets coated with Teflon are studied experimentally. Firstly, dilatometer and tensile tests were carried out to investigate the thermal and the mechanical properties of the coated sheets. Furthermore, Nakazima test was conducted to obtain the forming limit diagram (FLD) of the studied material. Also, a numerical approach based on the Finite Element Method (FEM) is being developed to determine the limit of the considered deep drawing process.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): University of Sfax
National School of Engineers of Gafsa (ENIGA)
Type: Conference contribution
Pages: 842-850
No. of pages: 9
Publication date: 2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Automotive Engineering, Aerospace Engineering, Mechanical Engineering, Fluid Flow and Transfer Processes
Electronic version(s): https://doi.org/10.1007/978-3-031-14615-2_94 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{94d91b39fb3a48de85c1636a946fbd6f,
title = "Experimental Characterization of Coated Aluminum Sheets for Deep Drawing Applications",
abstract = "Sheet metal forming is widely used in many industries, especially in manufacturing automotive body parts and white goods. For many years, coated kitchen utensils are being used because of their properties such as non-stick property. The most used coating is polytetrafluoroethylene (PTFE), known as Teflon. Kitchen utensils are mainly manufactured by deep drawing processes, which require a good knowledge of the behaviour and the formability of the material. To characterize the formability of the sheets, it is necessary to determine the forming limit diagram (FLD). The FLD can be obtained throughout different essays such as Marciniack test and Nakazima test. With the FLD it is possible to compare the formability of different materials. Also, knowing the FLD can reduce the process{\textquoteright} development time. In this work, aluminium sheets coated with Teflon are studied experimentally. Firstly, dilatometer and tensile tests were carried out to investigate the thermal and the mechanical properties of the coated sheets. Furthermore, Nakazima test was conducted to obtain the forming limit diagram (FLD) of the studied material. Also, a numerical approach based on the Finite Element Method (FEM) is being developed to determine the limit of the considered deep drawing process.",
keywords = "Coated aluminum sheet, Deep drawing, FEM, FLD, Formability, Nakazima test",
author = "Mariem Abdennadher and Anas Bouguecha and Behrens, {Bernd Arno} and Eugen Stockburger and Riadh Elleuch",
note = "Funding Information: This project is carried out under the mobidoc scheme 248 “Development of a ceramic non-stick coating, with extended formability limits on sheet metal for deep drawing applications”, funded by the EU through the EMORI program and managed by the ANPR. ; 9th International Congress on Design and Modeling of Mechanical Systems, CMSM 2021 ; Conference date: 20-12-2021 Through 22-12-2021",
year = "2023",
doi = "10.1007/978-3-031-14615-2_94",
language = "English",
isbn = "9783031146145",
series = "Lecture Notes in Mechanical Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "842--850",
editor = "Lassaad Walha and Mohamed Haddar and Abdessalem Jarraya and Fathi Djemal and Mnaouar Chouchane and Nizar Aifaoui and Abdelmajid Benamara and Fakher Chaari and Moez Abdennadher",
booktitle = "Design and Modeling of Mechanical Systems - V - Proceedings of the 9th Conference on Design and Modeling of Mechanical Systems, CMSM 2021",
address = "Germany",
}