Abstract
Superplastic forming technique provides a unique solution for meeting the growing demand on light-weight materials for transportation applications. However, being a rate controlled process, confined to low strain rates, makes it relatively slow and unfavorable for mass production applications. In this paper, an optimal variable strain rate forming path based on a multi-scale stability criterion is developed, aiming at reducing forming time while maintaining the integrity of the formed parts. This criterion accounts for geometrical instabilities as well as microstructural features. The effects of friction distribution at the die-sheet interface on the deformation stability are also investigated; aiming at identifying the optimal lubrication conditions. These results are demonstrated through finite element simulations of the forming process of bipolar plates flow-field channels used for polymer electrolyte membrane fuel cells.
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U.S Department of Transportation, Transportation Role in Reducing U.S. Greenhouse Gas Emissions, 2010.
F.K. Abu-Farha and M.K. Khraisheh, “An integrated approach to the Superplastic Forming of lightweight alloys: towards sustainable manufacturing,” International Journal of Sustainable Manufacturing, vol. 1, 2008, pp. 18–40.
A. Hermann, T. Chaudhuri, and P. Spagnol, “Bipolar plates for PEM fuel cells: A review,” International Journal of Hydrogen Energy, vol. 30, Sep. 2005, pp. 1297–1302.
D.G. Sanders, “The current state-of-the-art and the future in airframe manufacturing using superplastic forming technologies,” Materials Science Forum, 2001, pp. 17–22.
M.A. Nazzal, M.K. Khraisheh, and B.M. Darras, “Finite element modeling and optimization of superplastic forming using variable strain rate approach,” Journal of Materials Engineering and Performance, vol. 13, 2004, pp. 691–699.
M.K. Khraisheh and H.M. Zbib, “Optimum forming loading paths for Pb-Sn superplastic sheet materials,” Journal of Engineering Materials and Technology, vol. 121, 1999, p. 341.
L. Carrino, G. Giuliano, and C. Palmieri, “On the optimisation of superplastic forming processes by the finite-element method,” Journal of Materials Processing Technology, vol. 143, 2003, pp. 373–377.
P.E. Krajewski and J.T. Carter, Lubrication of magnesium workpieces for hot forming, Google Patents, 2007.
F.S. Jarrar, F.K. Abu-Farha, L.G. Hector, and M.K. Khraisheh, “Simulation of High-Temperature AA5083 Bulge Forming with a Hardening/Softening Material Model,” Journal of materials engineering and performance, vol. 18, 2009, pp. 863–870.
M.K. Khraisheh and F.K. Abu-Farha, “Microstructure-Based Modeling of Anisotropic Superplastic Deformation,” TECHNICAL PAPERS-SOCIETY OF MANUFACTURING ENGINEERS-ALL SERIES-, 2003.
C.H. Caceres and D.S. Wilkinson, “Large strain behaviour of a superplastic copper alloy–I. Deformation,” Acta Metallurgica, vol. 32, 1984, pp. 415–422.
M.J. Stowell, “Failure of superplastic alloys,” Metal Science, vol. 17, 1983, pp. 1–11.
Z. Marciniak and K. Kuczynski, “Limit strains in the processes of stretch-forming sheet metal,” International Journal of Mechanical Sciences, vol. 9, 1967, pp. 609–612.
J.W. Hutchinson, K.W. Neale, and A. Needleman, “Sheet necking—I. Validity of plane stress assumptions of the long-wavelength approximation,” Mechanics of Sheet Metal Forming, Plenum Press, New York, 1978, pp. 111–126.
Mohammad Albakri and Marwan Khraisheh, “Flow Field Design And Optimization For PEM Fuel Cell Bipolar Plates,” 2009.
ABAQUS, Abaqus Analysis User's Manual.
S.G. Luckey and P. Friedman, “Aspects of element formulation and strain rate control in the numerical modeling of superplastic forming.,” Advances in Superplasticity and Superplastic Forming as held at the 2004 TMS Annual Meeting, 2004, pp. 371–380.
F.S. Jarrar, L.G. Hector Jr, M.K. Khraisheh, and A.F. Bower, “New approach to gas pressure profile prediction for high temperature AA5083 sheet forming,” Journal of Materials Processing Technology, 2010.
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Albakri, M.I., Khraisheh, M.K. (2011). Optimization of Superplastic Forming; Effects of Interfacial Friction on Variable Strain Rate Forming Paths. In: Seliger, G., Khraisheh, M., Jawahir, I. (eds) Advances in Sustainable Manufacturing. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20183-7_18
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DOI: https://doi.org/10.1007/978-3-642-20183-7_18
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