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양방향성 형상기억합금을 이용한 공작물 척킹장치 : 유용성 검증
신우철(Woo-Cheol Shin),노승국(Seung-Kook Ro),박종권(Jong-Kweon Park) 한국생산제조학회 2009 한국생산제조학회지 Vol.18 No.5
In this study, a workpiece-chucking device that generates a chucking force from a shape memory alloy is introduced. This paper first presents train procedure to transform a commercial one-way shape memory alloy into a two-way shape memory alloy, which makes unclamping mechanism of the chucking device simpler than that using the one-way shape memory alloy. Second, it describes a conceptual design of the workpiece-chucking device using the two-way type shape memory alloy. Third, it presents a prototype and its chucking characteristics, such as time-response of clamping/unclamping operations and a relationship between temperatures and chucking forces. Finally, it describes a mill-machining test conducted with the prototype. The results confirm that the proposed workpiece-chucking device is feasible for micro machine-tools.