This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Improved AA5182 Aluminium Alloy as a Preferred Choice for Critical Forming Operations
Technical Paper
1999-01-3173
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Many process design factors effect the outcome of a sheet stamping operation. Particularly inner panel structures of hang-on panels are difficult to produce in aluminium. This paper deals with material behaviour issues related to formability and friction.
Formability is characterized by the mechanical properties while friction is related to surface topography. Formability is evaluated by means of laboratory tests and stamping trials on actual inner panels. Optimum results are obtained with materials with high n value and isotropic r value. An improved AA5182 alloy has been developed to meet these demands on mechanical properties. This alloy creates the best condition for downgauging and cost saving targets.
Authors
Citation
Lahaye, C., Bottema, J., De Smet, P., Jonason, P. et al., "Improved AA5182 Aluminium Alloy as a Preferred Choice for Critical Forming Operations," SAE Technical Paper 1999-01-3173, 1999, https://doi.org/10.4271/1999-01-3173.Also In
References
- Gatenby, K.M. Court, S.A. “Aluminium-Magnesium alloys for automotive applications - Design considerations and materials selection” IBEC'97, Advanced body concept & development 137 143 1997
- Hahn, O. et.al. “Einfluß von Kaltverfestigungen in Fügeteilen aus Aluminium auf den umformtechnischen Fügeprozeß” LWF-Forschungsbericht Paderborn 1998
- Wilson, I Sheasby, P.G. “The importance of environmental testing for evaluating pretreated/adhesively bonded automotive systems” Proc. Int. Symp. On aluminium surface sience and technology Antwerp 1997
- Uchida, H. Yoshida, H. “Effect of n value on formability of Al-Mg alloys” Sumitomo light metals technical reports 37 1 6 1996
- Murtha, S.J. et.al. “Anisotropy Effects in the forming of aluminium sheet” SAE 950702 103 111 1995
- Skåre, T. “Methods to calculate forming limit diagrams” IUC Olofström Sweden 1998
- Skåre, T. “Methods to calculate friction in U-bending processess” IUC Olofström Sweden 1998
- Pfestorf, M. et.al. “3D-surface parameters and their application on deterministic textured metal sheets” 7 th Int. Conf. On Metrology and properties of engineering surfaces 207 214 1997
- Vegter, H. An, Y. Pijlman, H.H. Huétink, J. “Different Approaches to Describe the Plastic Material Behaviour of Steel and Aluminium-Alloys in Sheet Forming” Invited paper In proceedings 2 nd Esaform (Guimarães, Portugal, 1999) Covas J.A. University of Minho 127 132