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http://dx.doi.org/10.5139/JKSAS.2003.31.9.032

Development of Micro Rocket Using Mechanical Micro Machining  

Baek,Chang-Il (경상대학교 기계항공공학부)
Chu,Won-Sik (경상대학교 기계항공공학부)
An,Seong-Hun (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.9, 2003 , pp. 32-37 More about this Journal
Abstract
The trend of miniaturization has been applied to the research on micro rockets resulting in prototype rockets fabricated by MEMS processes. In this paper, the development of three-dimensional micro rockets using micro milling as well as the results of combustion and flight tests are discussed. The body of rocket was made of 6061 aluminum cylinder. The three-dimensional micro nozzles were fabricated on brass by micro endmill with 127${\mu}m$ diameter. Two different micro nozzles were fabricated, one with 1.0mm of throat diameter and the other with 0.5mm. The total mass of rocket was 7.32g and that of propellant was 0.65g. The thrust-to-weight ratio was between 1.58 and 1.74, and the flight test with 45 degree launch angle form the ground resulted in 46m-53m of horizontal flight distance
Keywords
Micro Rocket; 3 Dimensional Nozzle; Micro Machining;
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