• Title/Summary/Keyword: LWB(Laser Welded Blank)

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Evaluation of Mechanical Characteristic of Laser-Welded Blank of a Boron Steel by Using Laser Ablation of Al-Si Coating Layer (Al-Si 코팅층 Laser Ablation 변수에 의한 LWB 보론강판의 기계적 특성 평가)

  • Moon, J.H.;Lee, M.S.;Kang, C.G.
    • Transactions of Materials Processing
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    • v.20 no.8
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    • pp.540-547
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    • 2011
  • Recent years have seen advent of hot stamped parts made from laser-welded blanks of boron steels for structures requiring high crash energy absorption. However, the presence of Al-Si coating interfered with satisfactory mechanical characterizations after laser butt welding. In this study, laser ablation technology was considered in order to facilitate adequate mechanical characterization of the final hot-stamped panels.