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선택적 레이저 소결법을 이용한 기어박스의 정밀주조기술 개발
최상련,김천기,박근,오철호 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.1
In this paper, rapid prototyping and precision castiong technology have been devloped for the manufacturing of inlet pear box of an airplane. Rapid prototyping is a new prototyping technology that produces complicated parts directly from threedimensional CAD data with a high efficiency, and has been extensively applied to various manufacturing processes. In the present work, Selective Laser Sintering(SLS) system is untilized in order to manufature prototype of the inlet gear box. Prototyping technology using SLS is also investigated from the viewpoint of accuracy. Using the SLS master, the casting products are manufactured through several processes such as: vacuum casting, lost wax shell casting and investment cast-ing. The shrinkage characteristics of wax and cast iron in the casting procedures are considered, and then reflected to the design procedure so that the accuracy of the product in improved consequently.