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전기자동차용 알루미늄 밧데리케이스 충격후방압출공정 해석을 위한 마찰에 관한 고찰
김민철(M. C. Kim),이민철(M. C. Lee),이민철(M. C. Lee),전만수(M. S. Joun) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.10
In this paper, appropriate frictional law and conditions for predicting the cold impact backward extrusion process of an aluminum battery case of electric vehicles are presented. Some limitations in simulating the battery case backward extrusion process using finite element method are explained with emphasis on mesh effects and frictional phenomena. A hybrid frictional law is proposed to simulate battery case backward extrusion, based on the investigation into the frictional flow marks on the internal bottom.