The Influence of Compressive Pressure in the Thickness Direction on Spring-Back for Aluminum Alloy

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Abstract:

This study evaluates the effect of the compression between the punch and the die on spring-back after the punch reaches the dead point. Utilizing the elastic-plastic FEM, the forming and spring-back process of aluminum alloy V-shape sheet is simulated. The investigation is also carried out through experiment. It is shown that spring-back decreases as the ratio of the average pressure and tensile strength increases when the ratio is small; Spring-back increases slightly as the radius of the punch increases from 8mm to 16mm. The results of the 2D plain strain element are in good agreement with the experiment results.

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Advanced Materials Research (Volumes 472-475)

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736-739

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February 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Li X, Yang Y, Wang Y, Bao J, Li S. Effect of the material-hardening mode on the spring-back simulation accuracy of V-free bending [J]. Journal of the Material Processing Technology, 2002,123:209-211.

DOI: 10.1016/s0924-0136(02)00055-9

Google Scholar

[2] Cho JR, Moon SJ, Moon YH, Kang SS. Finite Element investigation on spring-back characteristics in sheet metal U-die bending process[J]. Journal of the Material Processing Technology, 2003, 141:109-116.

DOI: 10.1016/s0924-0136(03)00163-8

Google Scholar

[3] Gomes C, Onipede O, Lovell M. Investigation of spring-back in high strength anisotropic steels [J]. Journal of the Material Processing Technology, 2005, 159:91-98.

DOI: 10.1016/j.jmatprotec.2004.04.423

Google Scholar

[4] Gan W, Wagoner R. H. Die design method for sheet spring-back. International Journal of Mechanical Science 2004;46(7):1097-113.

Google Scholar

[5] Tekaslan, Nedim Gerger, Ulvi Seker. Determination of spring-back of stainless steel sheet metal in "V" bending dies[J]. Materials and Design.

DOI: 10.1016/j.matdes.2007.04.004

Google Scholar