Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Analysis of Bonding Characteristics of a T-shape Structure Fabricated by Superplastic Hydroforming and Diffusion Bonding using two Ti-3Al-2.5V tubes

Ti-3Al-2.5V 튜브의 초소성 하이드로포밍과 확산접합으로 제조된 T형 구조물의 접합 특성 분석

  • Yoo, Y.H. (Tallis Tech Co.,Ltd.) ;
  • Lee, S.Y. (School of Advanced Materials Engineering, Andong National University)
  • Received : 2018.01.25
  • Accepted : 2018.02.14
  • Published : 2018.03.30
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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.

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References

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