Superplastic Forming of a Complex Shape Automotive Component with Optimized Heated Tools

Article Preview

Abstract:

Superplastic forming (SPF) commonly requires industrial presses with an integrated large furnace able to uniformly heat the tools and the blank. In this work the feasibility to form via SPF an automotive component using a different heating approach was investigated. The heat is localized only where it is really needed embedding electric heating elements directly in the forming tools. Preliminary numerical simulations of the heating phase were aimed at calculating the electrical power and at choosing a suitable positioning of the heating elements. Further forming simulations were run to calculate the pressure profile. SPF experiments were finally conducted and sound components were obtained saving energy costs and using a common industrial press with lower investment costs.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 838-839)

Pages:

494-499

Citation:

Online since:

January 2016

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2016 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] G. Bernhart, P. Lours, T. Cutard, V. Velay, and F. Nazaret, Processes and equipment for superplastic forming of metals. Woodhead Publishing Limited, (2011).

DOI: 10.1533/9780857092779.1.49

Google Scholar

[2] B. Swale, M. Pizzingrilli, and E. McCullagh, Superplastic Forming – Cost Effective, in Key Engineering Materials, 2010, vol. 433, p.41–47.

DOI: 10.4028/www.scientific.net/kem.433.41

Google Scholar

[3] P. Wilson, C. Couzins-Short, H. Chesterton, and A. Jocelyn, Superplastic Forming and Diffusion Bonding: Current Cost, Value and Future Trends, in Key Engineering Materials, 2010, vol. 433, p.119–124.

DOI: 10.4028/www.scientific.net/kem.433.119

Google Scholar

[4] J. Liu, M. -J. Tan, A. E. W. Jarfors, S. C. V Lim, K. -S. Fong, and S. Castagne, Greener manufacturing: Superplastic-like forming, J. Phys. Conf. Ser., vol. 379, p.012034, Aug. (2012).

DOI: 10.1088/1742-6596/379/1/012034

Google Scholar

[5] N. Chandra, Constitutive behaviour of superplastic materials, Int. J. Non. Linear. Mech., vol. 37, no. December 2000, p.461–484, (2002).

Google Scholar

[6] S. Rhaipu, The effect of rapid heat treatment on the high-temperature tensile behavior of superplastic Ti-6Al-4V, Metall. Mater. Trans. A, vol. 33, no. 1, p.83–92, (2002).

DOI: 10.1007/s11661-002-0007-7

Google Scholar

[7] H. Karbasian and a. E. Tekkaya, A review on hot stamping, J. Mater. Process. Technol., vol. 210, no. 15, p.2103–2118, (2010).

DOI: 10.1016/j.jmatprotec.2010.07.019

Google Scholar

[8] R. Neugebauer, T. Altan, M. Geiger, M. Kleiner, and a. Sterzing, Sheet metal forming at elevated temperatures, CIRP Ann. - Manuf. Technol., vol. 55, no. 2, p.793–816, Jan. (2006).

DOI: 10.1016/j.cirp.2006.10.008

Google Scholar

[9] A. Jocelyn, A. Kar, A. Fanourakis, T. Flower, M. Ackerman, A. Keevil, and J. Way, Indirect Versus Direct Heating of Sheet Materials: Superplastic Forming and Diffusion Bonding Using Lasers, J. Mater. Eng. Perform., vol. 19, no. 4, p.527–532, Mar. (2010).

DOI: 10.1007/s11665-010-9619-z

Google Scholar

[10] G. Bernhart, J. P. Arcens, and Y. Le Maoult, Innovative Superplastic Forming Based on In Situ Infra-Red Sheet Heating, in Materials Science Forum, 2013, vol. 735, p.415–421.

DOI: 10.4028/www.scientific.net/msf.735.415

Google Scholar

[11] United States Patent Patent No.: US 6, 835, 254 B2, Hammar et al., Hot air convection; superplastic; cold working; electrical resistance, 28-Dec-(2004).

Google Scholar

[12] United States Patent Patent No.: US 5, 410, 132, Gregg et al. Superplastic forming using induction heating, 25-Apr-(1995).

Google Scholar

[13] J. Liu and K. Zhang, Resistance heating superplastic forming and influence of current on deformation mechanism of TA15 titanium alloy, Int. J. Adv. Manuf. Technol., vol. 76, no. 9–12, p.1673–1680, (2014).

DOI: 10.1007/s00170-014-6286-5

Google Scholar

[14] D. Sorgente and L. Tricarico, Characterization of a superplastic aluminium alloy ALNOVI-U through free inflation tests and inverse analysis, Int. J. Mater. Form., vol. 7, p.179–187, (2014).

DOI: 10.1007/s12289-012-1118-3

Google Scholar

[15] D. Sorgente and L. Tricarico, Pressure Profile Designing in Superplastic Forming Based on the Strain Rate and on Post-forming Properties, J. Mater. Eng. Perform., vol. 23, no. June, p.2025–2033, (2014).

DOI: 10.1007/s11665-014-1027-3

Google Scholar