튜블러 빔 냉각 조건에 따른 CTBA 성능 향상에 관한 연구
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Apply to high-strength steels for the purpose of weight reduction for improved fuel economy car chassis parts are becoming more and more importance. Formability to overcome for hot stamping process accordingly apply the research has been actively conducted. In this study, after forming, to obtain a reduced thermal deformation and uniform phase transformation for the purpose by improving the Die cooling channel. In conclusion, automotive chassis parts CTBA performance is improved.