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용융탄산염 연료전지용 금속분리판 굽힘 공정의 유한요소 해석을 통한 스프링백 분석
이창환(C. H. Lee),류승민(S. M. Ryu),양동열(D. Y. Yang),김영진(Y. J. Kim),강동우(D. W. Kang),장인갑(I. G. Chang),이태원(T. W. Lee) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
Metallic bipolar plate for molten carbonate fuel cell(MCFC) is composed of the shielded slot plate and the center plate. Among these, the center plate plays an important role in gas sealing. Therefore, manufacturing of the center plate is considered one of the key issues in MCFC. The center plate is manufactured by bending process. In bending process, springback and recoiling are two main problems. By using the modified punch shape with ‘step’ springback and recoil are reduced. The aim of this article is to find the effect of modified punch shape. So, the bending stress along thickness direction and material direction were investigated using FEM.