Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Technology Trend of Additive Manufacturing for Fabrication of Liquid Rocket Engines

액체로켓엔진 제작을 위한 적층제조 기술 동향

  • Yoo, Jaehan (Rocket Engine Team, Korea Aerospace Research Institute)
  • 유재한 (한국항공우주연구원, 발사체엔진팀)
  • Received : 2020.04.23
  • Accepted : 2020.09.14
  • Published : 2020.10.31
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Abstract

Recently, there has been an increase in additive manufacturing for the fabrication of liquid rocket engines. This technology can innovate conventional fabrication methods to reduce the lead time and manufacturing cost and can enhance the performances such as weight reduction. In this study, a literature survey is presented that includes types, advantages, disadvantages, and foreign government-based projects of the technology related to liquid rocket engine manufacturing. The present survey focuses on the technology that has been applied to various components such as turbopumps and valves while much larger efforts are made for combustion chambers with regenerative cooling channels and diverging nozzles, as the advantages of the technology are maximized for the applications.

최근 액체로켓엔진 제작을 위해 적층제조 기법이 부상하고 있다. 이 기술은 제작 비용과 시간의 감소와 중량 감소와 같은 성능 증가로 기존의 제작 방법을 혁신할 수 있다. 여기서는 액체로켓엔진 제작과 관련하여 적층제조의 종류, 장단점과 해외 정부 기관의 프로젝트에 관하여 문헌조사를 하였다. 적층제조는 터보펌프나 밸브와 같은 부품이외에도 장점을 극대화할 수 있는 확대 노즐과 재생냉각채널이 있는 연소실에 관하여 보다 많은 기술 개발이 이루어졌으며 이에 관한 내용을 중점적으로 다루었다.

Keywords

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