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http://dx.doi.org/10.12656/jksht.2018.31.2.49

Analysis of Bonding Characteristics of a T-shape Structure Fabricated by Superplastic Hydroforming and Diffusion Bonding using two Ti-3Al-2.5V tubes  

Yoo, Y.H. (Tallis Tech Co.,Ltd.)
Lee, S.Y. (School of Advanced Materials Engineering, Andong National University)
Publication Information
Journal of the Korean Society for Heat Treatment / v.31, no.2, 2018 , pp. 49-55 More about this Journal
Abstract
A T-shape structure was manufactured by the superplastic forming and diffusion bonding process using two Ti-3Al-2.5V alloy tubes. A Ti-3Al-2.5V tube was prepared for the hydroforming in the superplastic condition until it reaches a surface area such as a roof welded in the hole of another Ti-3Al-2.5V tube. Afterward, the superplastic forming process and the diffusion bonding process were carried out simultaneously until the appropriate bonding along the interface area of two Ti-3Al-2.5V tubes was obtained. The bonding qualities were different at each location of the entire interface according to the applied process conditions such as strain, pressure, temperature, holding time, geometries, etc. The microstructures of bonding interface have been observed to understand the characteristics of the applied processes in this study.
Keywords
Ti-3Al-2.5V; Superplastic hydroforming; Diffusion bonding; Interface microstructure;
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Times Cited By KSCI : 1  (Citation Analysis)
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