FEM Analysis of spring back in bending process of center plate for molten carbonate fuel cell

용융탄산염 연료전지용 금속분리판 굽힘 공정의 유한요소 해석을 통한 스프링백 분석

  • Published : 2009.05.07

Abstract

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.

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