| Development of Aerospace Components Forming Technology using Superplasticity and Diffusion Bonding Characteristic |
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Ho-Sung Lee, Jong-Hoon Yoon, Yeong-Moo Yi |
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KARI |
| 초소성 및 확산접합을 이용한 우주항공 부품 성형기술 개발 |
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이호성, 윤종훈, 이영무 |
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한국항공우주연구원 |
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| Abstract |
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In this paper, a near net shape technology using superplasticity and diffusion bonding characteristics was presented for application to various components of aircraft and missiles. Due to these special characteristics of some aerospace alloys, it is possible to produce complex components to shape very near final dimension with enhanced design freedom, reduced material usage, and overall saving of weight and cost. The high pressure vessel for a space launcher was fabricated with Ti-6Al-4V alloy by superplastic forming and diffusion bonding process and the failure characteristics are compared with conventionally fabricated vessel spin formed and TIG welded. The structural integrity of the superplastic forming and diffusion bonding process was successfully demonstrated. |
| Key Words:
Superplasticity, Diffusion Bonding, Titanium, Aerospace Parts, Forming Technology |
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