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The Control of Shape Fixation and Springback of Aluminum Alloy Sheet in Model Forming
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English
Abstract
The shape and dimensional failures were investigated by the hat-shape bend forming and the model forming of a door outer panel. In the hat-shape bend forming the springback and the side wall curl after forming depend on the strength of sheet material, the shape and dimension of tools, lubricants and the blank holding force. In the forming of door outer model panel the surface deflection around a handle portion appeared distinguishably. In order to suppress the surface deflection such a countermeasure as bottoming is required. It is difficult to change the material properties in a wide range in the manufacturing processes of aluminum alloy sheets. Therefore the development of forming techniques suitable for aluminum alloy sheets is desired.
Citation
Hayashi, H., "The Control of Shape Fixation and Springback of Aluminum Alloy Sheet in Model Forming," SAE Technical Paper 960819, 1996, https://doi.org/10.4271/960819.Also In
References
- Hayashi, H Murayama, K. Makinouchi, A. Nakagawa, T. “Dimensional inaccuracy of aluminum alloy sheets in hat-shape forming” Proc. 18th IDDRG Biennial Congress 121 Lisbon, Portugal 1994
- Hayashi, Y. “Analysis of surface defect and side wall curl in press forming” Proc. 13th IDDRG Biennial Congress 565 Melbourne, Australia 1984
- Hirose, Y. Kojima, M. Ujihara, S. Hishida “Development of forming technique with real-time control of blank holding force” Proc. 17th IDDRG Biennial Congress 300 Shenyang, China 1992
- Hayashi, H. Jalinier, J.-M. Yoshida, K. “Surface deflection in sheet metal forming - Part 1. Analysis of geometrical failures in sheet metal forming” Scientific Papers of IPCR 78 60 1984
- Satoh, T. Amaike, T. Ujihara, S. “Measurement and evaluation of panel surface deflection by means of spherometers” J. Japan Society for Technology of Plasticity 24 1227 1983
- Umehara, Y. “Analysis of shape fixability in high strength steel sheets in press forming” 77 247 1980
- Yoshida, M. Shimomura, T. “A study of surface deflection around the handle portion of an automotive door-outer panel using a model die” J. Japan Society for Technology of Plasticity 24 1260 1983