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http://dx.doi.org/10.5139/JKSAS.2007.35.9.778

Fabrication of Lightweight Sandwich Structural Components with Superplastic Forming/Diffusion Bonding Technology  

Lee, Ho-Sung (한국항공우주연구원)
Yoon, Jong-Hoon (한국항공우주연구원)
Yi, Yeong-Moo (한국항공우주연구원)
Shin, Dong Hyuk (한양대학교 금속재료공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.9, 2007 , pp. 778-782 More about this Journal
Abstract
In the present study, design and forming process of fabricating titianium lightweight components are developed with applicaton of superplastic forming and diffusion bonding technology. SPF/DB(Superplastic forming/Diffusion bonding) technology is one of the advanced technologies to reduce production cost and weight and currently applied to aircrafts and space launchers in foreign countries. The present study constructs an analysis model to predict superplastic forming behavior of titanium alloy, which is well known for its resistance to deform. The experimental results show the forming of titanium lightweight sandwich structure is successfully performed from 3 sheets of Ti-6Al-4V. The results demonstrate that the developed technology to process design of SPF/DB by the finite element method can be applied to various types of components.
Keywords
Superplasticity; SPF/DB(Superplastic forming/Diffusion bonding); Lightweight Structure; Titanium; Finite Element Analysis;
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  • Reference
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