Advances in Monitoring Die Condition during Superplastic Forming

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Abstract:

Superplastic forming of titanium is typically restricted to low volume, high value products due to the high costs inherent in the current process. Problems contributing to the high costs stem from the interactions that take place at the die/part interface and include; poor part surface finish due to the build-up of corrosion products on the die surface and part distortion due to adhesion at the die surface. This paper describes novel methods for the investigation of the build-up of corrosion products on the die using surface digitization tools with laboratory based simulations of the forming conditions and a novel method for monitoring, analyzing and quantifying the die surface condition in a production environment using a combination of thermal imaging techniques and image analysis.

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557-564

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April 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Sanders, D.G. and M. Ramulu. Examination of superplastic forming combined with diffusion bonding for titanium: Perspective from experience. 2004: ASM International.

DOI: 10.1361/10599490421574

Google Scholar

[2] Chen, T.-R., et al., Different Friction Coefficients at Different Positions of Superplastically Formed Parts. Materials Science Forum, 1999. Volumes 304 - 306: pp.741-746.

DOI: 10.4028/www.scientific.net/msf.304-306.741

Google Scholar

[3] Kelly, R.B., et al. The measurement of friction for superplastic forming of Ti-6Al-4V. in Superplasticity in Advanced Materials: 8th International Conference on Superplasticity in Advanced Materials, ICSAM 2003, July 28, 2003 - July 30, 2003. 2004. Oxford, United kingdom: Trans Tech Publications Ltd.

Google Scholar

[4] Friedman, P.A., et al. Overview of superplastic forming research at ford motor company. 2004: ASM International.

Google Scholar

[5] Nicholls, J.R., Discontinuous Measurements of High Temperature Corrosion, Guidelines for Methods of Testing and Research in High Temperature Corrosion, ed. H.J. Grabke and D.B. Meadowcroft. 1995: The Institute of Materials. 224.

Google Scholar