http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
나사 전조공정 해석모델에 제안 및 화산 모양의 변형형상의 예측
이민철(M. C. Lee),장수진(S. J. Jang),한승상(S. S. Han),손요헌(Y. H. Son),윤덕재(D. J. Yoon),전만수(M. S. Joun) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.5
In this paper, three-dimensional finite element analysis of screw rolling process of a 12 point flange head bolt is conducted using a rigid-plastic finite element method based metal forming simulator AFDEX 3D. An analysis model is proposed to carry out detailed simulation of thread formation, especially prediction of volcano shape crest. The model is composed of a slice of material, two artificial symmetric planes, and two tapered or flat thread rolling dies. It is applied to a thread rolling process of the 12 point flange bolt with multi-thread and small pitch and depth and the formation of thread including the volcano shape crest is revealed in detail.
사면체요소를 이용한 냉간 판단조공정의 강소성 유한요소해석
이민철(M. C. Lee),정완진(W. J. Chung),엄재근(J. G. Eom),김장섭(J. S. Kim),김기수(K. S. Kim),전만수(M. S. Joun) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.5
Sheet or plate metal forming processes have been simulated mostly by sheet metal forming simulation technologies, which have a decisive problem in predicting the thickness variation in the neighborhood of comers of metal formed products. In this paper, a plate forging process is simulated using tetrahedral finite elements with emphasis on prediction of thickness variation of deformed comers of the sheet or plate formed products. A three-dimensional rigid-plastic finite element method is employed to show the possibility of application of bulk metal forming simulation technologies to simulating the sheet or plate forming processes.