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열간 조압연 공정에서 자동차 외판재용 강판의 소성변형거동 예측
정재환(J. H. Jeong),이경훈(K. H. Lee),이상호(S. H. Lee),김형진(H. J. Kim),임종협(J. H. Lim),이계영(K. Y. Lee),김병민(B. M. Kim) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.10
The aim of this study is to predict the plastic deformation behavior of automotive steel sheet during the hot rolling process. Material tracking technique was used to investigate material movement during hot rolling operation. Hot compression test is performed to obtain the effective stress-strain curve of initial slab, which is applied to FE-simulation. Tracked points of slab were calculated at each rolling stage such as sizing press and rough rolling process. FE-simulation results were compared with measured track points of rolled bar in the real hot rolling mill. FEA using material tracking technique is a suitable method for the prediction of the slab metal flow during the hot rolling process.