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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29010


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1814
An Experimental Study and Influence of BHF and Die Radius in Deep Drawing Process on the Springback
Authors:
Abstract:
A lot of research made during these last 15 years showed that the quantification of the springback has a significant role in the industry of sheet metal forming. These studies were made with the objective of finding techniques and methods to minimize or completely avoid this permanent physical variation. Moreover, the use of steel and aluminum alloys in the car industry and aviation poses every day the problem of the springback. The determination in advance of the quantity of the springback allows consequently the design and manufacture of the tool. The aim of this paper is to study experimentally the influence of the blank holder force BHF and the radius of curvature of the die on the springback and their influence on the strain in various zone of specimen. 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 displacement.
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References:

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[3] Claes Arwidson, Numerical simulation of sheet metal forming for high strength steels, Licentiate thesis , Luleå University of Technology, Sweden, 2005.
[4] P. Sun, J.Grácio, 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.
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[6] 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.
[7] M. Firat, U-channel forming analysis with an emphasis on springback deformation, Materials and Design, 28, pp. 47-154, 2007.
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