Journal article Open Access

A Detailed Experimental Study of the Springback Anisotropy of Three Metals using the Stretching-Bending Process

A. Soualem

Springback is a significant problem in the sheet metal forming process. When the tools are released after the stage of forming, the product springs out, because of the action of the internal stresses. In many cases the deviation of form is too large and the compensation of the springback is necessary. The precise prediction of the springback of product is increasingly significant for the design of the tools and for compensation because of the higher ratio of the yield stress to the elastic modulus. The main object in this paper was to study the effect of the anisotropy on the springback for three directions of rolling: 0°, 45° and 90°. At the same time, we highlighted the influence of three different metallic materials: Aluminum, Steel and Galvanized steel. The original of our purpose consist on tests which are ensured by adapting a U-type stretching-bending device on a tensile testing machine, where we studied and quantified the variation of the springback according to the direction of rolling. We also showed the role of lubrication in the reduction of the springback. Moreover, in this work, we have studied important characteristics in deep drawing process which is a springback. We have presented defaults that are showed in this process and many parameters influenced a springback. Finally, our results works lead us to understand the influence of grains orientation with different metallic materials on the springback and drawing some conclusions how to concept deep drawing tools. In addition, the conducted work represents a fundamental contribution in the discussion the industry application.

Files (580.3 kB)
Name Size
14899.pdf
md5:38e4b30d60cca63b8c04ea7214711ad5
580.3 kB Download
  • ClaesArwidson, Numerical simulation of sheet metal forming for high strength steels, Licentiate thesis, Lule├Ñ University of Technology, Sweden, 2005.
  • IhabRagai, DuraidLazim, James A. Nemes, Anisotropy and springback in draw-bending of stainless steel 410, experimental and numerical study, Journal of Materials Processing Technology, 166, pp. 116-127, 2005.
  • Jin Nam, Wenxia Li John and J. Lannutti, Density gradients and springback: environmental influences, Powder Technology, 133, pp. 23- 32, 2003.
  • M. Banua, M. Takamura, T. Hamac, Simulation of springback and wrinkling in stamping of a dual phase steel rail-shaped part, Journal of Materials Processing Technology, 173, pp.178-184, 2006. [10] M. Firat, U-channel forming analysis with an emphasison springback deformation, Materials and Design, 28, pp. 47-154, 2007. [11] J.R. Cho, S.J. Moon, Y.H. Moon, Finite element investigation on springback characteristics in sheet metal U-bending process, Journal of Materials Processing Technology, 141, pp 109-116, 2003.
  • M. Samuel, Experimental and numerical prediction of springback and side wall curl in U-bendings of anisotropic sheet metals, Journal of Materials Processing Technology, 105, pp. 382-393, 2000.
  • P. Sun, J.Gr├ício, J. Ferreira, Control system of a mini hydraulic press for evaluating springback in sheet metal forming, Journal of Materials Processing Technology, 176, pp.55-61, 2006.
  • T.B. Hilditch, J.G. Speer, D.K. Matlock, Influence of low-strain deformation characteristics of high strength sheet steel on curl andspringback in bend-under-tension tests, Journal of Materials Processing Technology, 182, pp. 84-94, 2007.
  • Zhang Dongjuan, Cui Zhenshan, An analytical model for predicting springback and sidewall curl of sheet after U-bending Computational Materials Science, 2006.
  • ├ûzgurTekaslan, UlviSeker, Determining springback amount of steel sheet metalhas 0.5mm thickness in bending dies, Materials and Design, 27, pp. 251-258, 2006.
0
0
views
downloads
All versions This version
Views 00
Downloads 00
Data volume 0 Bytes0 Bytes
Unique views 00
Unique downloads 00

Share

Cite as