Overview of Forming and Formability Issues for High Volume Aluminium Car Body Panels

摘要:

文章预览

Cost-efficient designs of aluminum autobody structures consist mainly of stampings using conventional technology. Progress in metallurgy and forming processes has enabled aluminum body panels to achieve significant market share, particularly for hoods. Fast bake hardening alloys with better hemming performance were developed for improved outer panel sheet products. Specific guidelines for handling and press working were established to form aluminum panels using similar schedules and production lines as steel parts. Stamping productivity was improved by optimization of the trimming process to reduce sliver/particle generation and resulting end-of-line manual rework. Both hemming formability and trimming quality not only depend on tooling setup but also on microstructural features, which govern intrinsic alloy ductility. Targets for the next high volume aluminum car body applications, such as roof panels and doors, require higher strength and/or better formability. The challenges of complex stampings can be met with optimized alloys and lubricants, with improved numerical simulation to fine-tune stamping process parameters, and with the introduction of new technologies. Warm forming was examined as a potential breakthrough technology for high volume stamping of complex geometries.

信息:

期刊:

编辑:

W.J. Poole, M.A. Wells and D.J. Lloyd

页数:

795-802

DOI:

10.4028/www.scientific.net/MSF.519-521.795

引用:

D. Daniel et al., "Overview of Forming and Formability Issues for High Volume Aluminium Car Body Panels ", Materials Science Forum, Vols. 519-521, pp. 795-802, 2006

上线时间:

July 2006

输出:

价格:

$35.00

[1] G.M. Raynaud and M. Henne, 2nd Int Light Metals Technology Conference, Vienna (2005).

[2] L. Chappuis, AluForm Congress, Paris (2004).

[3] J. M. Story, G. W. Jarvis, H. R. Zonker and S. J. Murtha, SAE paper 930277 (1993).

[4] M. Li and G. Fata, SAE Paper 1999-01-0661 (1999).

[5] A. Bacha, H. Klocker, D. Daniel, IDDRG congress, Besançon (2005).

[6] D. Daniel, R. Shahani, R. Baldo, J.L. Hoffmann, Int. Body Eng. Conference, Detroit (1999).

[7] R. Shahani, 7th European Automotive Lightweight Conference, Bad Nauheim, (2005).

[8] European Aluminium Association, Automotive Manual, http: /www. eaa. net/aam.

[9] A. K. Sachdev, Metall. Trans. A, vol. 21A (1990), p.165.

[10] F. Sacerdotti et al., Meas. Sci. and Techno., vol. 13 (2002), p.21.

[11] M. Meiler, M. Pfestorf, M. Geiger and M. Merklein, Wear, Vol. 255 (2003), p.1455.

[12] S. F. Golovashchenko, J. Mat. Eng. and Performance, vol. 14(4) (2005), p.508.

[13] K. Siegert, Sheet Metal forming technology symposium, San Diego (1999).

[14] P. A. Tebbe, G. T. Kridli, Int. J. of Mat. and Product Techno., vol. 21 (2004), p.24.

[15] P. A. Friedman and S. G. Luckey, 8th Int. Conf. Superplasticity in Adv. Mat., Oxford (2003).

[16] P. Litalien, A. Legendre, D. Daniel and G.M. Raynaud, patent n° EP1601478 (2005) Failure a) b).

为了查看相关信息, 需 Login.