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Journal of the Korea Institute of Military Science and Technology 2007;10(3):120-128.
Fabrication of a Large Object by Rapid Prototyping Technics
Hong-Seok Choi
쾌속조형 원리를 이용한 대형 모델의 제작
최홍석
국방과학연구소
Abstract
In order to reduce the lead-time and cost, the technology of rapid prototyping(RP) has been widely used. This paper describes the methodology to fabricate a large object by using the principle of rapid prototyping. By laminating thick and sloping polystyrene foam plates, we can make the large model which has three dimensional, continuous surfaces faster and easier than conventional processes. Estimated error was much smaller than other RP products which have stepped effect. For accuracy improvement and post processing, machined metal plates are added between the thick plates. To keep the continuity of surface and strengthen the model, pilot holes and guide rods are applied. By the methodology described in this paper, a missile body with flush air intake was fabricated.
Key Words: Rapid Prototyping, Thick Layered Manufacturing, Variable Lamination Manufacturing : VLM, Error Estimation
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