마이크로웨이브를 이용한 탄소섬유 복합재료 성형 시 전자파 집중 효과에 대한 영향 분석

초록

The application of carbon fiber composite materials are rapidly expanding owing to their excellent mechanical properties. However, unlike material costs, which are gradually decreasing as production increases, molding costs account for a high proportion of the total price. Recently, various studies, including those on microwave molding, have been conducted to reduce molding costs. However, studies on the characteristics of the new method are insufficient. In this study, the effect of the edge concentration effect of electromagnetic waves on the molding quality of the composite material when molding the carbon composite material using microwaves was analyzed experimentally. The result of the test confirmed the overshot phenomenon caused by the electromagnetic wave concentration effect. Furthermore, the correlation between the specimen size and the location in the specimen was analyzed. Based on this, guidelines for safe areas with good molding quality during microwave molding were quantitatively presented. In the future, more fundamental solutions will require efforts to find optimal conditions for setting magnetrons that minimize edge over-shoots.

키워드