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국내 최대 정보 기계·건설 공학연구정보센터
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  • Objet30 Prime (3D프린터)
  • NDSL학술지

    NDSL학술지 제목 게시판 내용
    제목 초고강도강 성형공정에서 소재산포에 의한 스프링백 경향
    저자 배상범
    김세호
    초록 In this paper, the reliability-based parameter study is carried out for the stamping process of a front rail roof member with the ultra high strength steel, considering the scatters of the material properties and the process parameters. With the reliability-based design optimization (RBDO) scheme, the springback tendency is investigated from the perturbation of the process parameters such as the sheet thickness, ultimate tensile strength, yield strength, Coulomb friction coefficient, and applied padding force. The amount of the elastic recovery along the height direction is quantified to describe the springback tendency from the analysis. The analysis shows the springback-amount scattering is not ignorable when the yield stress scatters within the similar range of the ultimate tensile strength. The analysis results fully explain the importance of controlling the scatters as well as the average yield-strength amount in the mass production of the stamped products.
    저널명 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering
    VOL 35
    PAGE pp.791-796
    발표년도 2018
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