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Analysis on Void Closure Behavior during Hot Open Die Forging

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Abstract:

Internal voids have to be eliminated for defect-free in some open die forging. The FEM analysis is performed to investigate the overlap defect of cast ingots during cogging stage. The measured flow stress data were used to simulate the cogging process of cast ingot using the practical material properties. Also the numerical analysis of void closure is performed by using the DEFORMTM-3D. The calculated results of void closure behavior are compared with the measured results before and after upsetting, which are scanned by the X-ray scanner. From this result, the criteria for deformation amounts effect on the void closure were estimated into effective strain of 0.6 by the comparison of practical experiment and numerical analysis.

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Advanced Materials and Processing View Preview

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

69-72

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.69

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Online since:

October 2007

Authors:

Young Seon Lee, Y.C. Kwon, Yong Nam Kwon, Jung Hwan Lee, S.W. Lee, N.S. Kim

Keywords:

Finite Element Analysis (FEA), Hydrostatic Stress, Ingot, Open Die Forging, Strain, Void Closure

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Dudra, S. P and IM, Y. T, 1990, Investigation fo metal flow in open-die forging with different die and billet geometries, J. of Materals Processing Technology, Vol. 21, p.143~154.

DOI: 10.1016/0924-0136(90)90003-d

Google Scholar

[2] kiefer. B. V, and Shah. K. N, 1991, Three dimensional simulation of open-die press forging, ASME Trans. J. of Eng. Mat. and Tech, Vol. 112, p.477~485.

Google Scholar

[3] C.Y. Park, J.R. Cho, D.Y. Yang, D.J. Kim and I.S. park, 1992, Analysis of cavity Closure in the Upsetting Process of Large-Ingot.

Google Scholar

[4] J.R. Cho, W.B. Bae, Y.H. Kim, S.S. Choi, D.K. Kim: J. of Materials Processing Technology, Vol. 80-81 (1998) 161-165.

Google Scholar

[5] C.Y. Park, D.Y. Yang, J. of Materials Processing Technology, Vol. 67 (1997) 195-200.

Google Scholar

[6] P.H. Kim, M.S. Chun, J.J. Yi, Y.H. Moon, J. of Materials Processing Technology, Vol. 130-131 (2002) 516-523.

Google Scholar

[7] C.Y. Park, J.R. Cho, D.Y. Yang, D.J. Kim and I.S. park, 1992, Analysis of cavity Closure in the Upsetting Process of Large-Ingot.

Google Scholar