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내덴트성이 우수한 자동차 외판용 고장력 340Mpa급 BH강판 개발
고훙석(Hungsuk Koh),문만빈(Manbeen Moon),신철수(Chirlsoo Shin),오현운(Hyunwoon Oh) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In the this study, the influence of chemical composition(added-Ti, Nb) and CAL(Continuous Annealing Line) condition on baking hardenability(BH) were investigated with various types of HS340㎫ bake-hardenable steels sheet for automobile outside panel. BH value of Ti-added steel was stably expressed over 3kgf/㎟. In order to obtain BH over 3kgf/㎟, Nb-added BH steel is more difficulties in controlling annealing temperature and line speed than Ti-added BH steel.<br/> <br/>