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Design and welding method for high-strength steel structure using laser-arc hybrid welding

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Abstract

The study intended for rational usage of high-strength steel in structure by applying laser-arc hybrid welding has been conducted. Key design requirements and improvement target have been clarified considering their key performances as structural members. The evaluation methods for risk of brittle fracture and cold cracking have been established for quality control. Safety of welded joint has been confirmed and their fatigue strength has been improved by optimizing welding process.

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Acknowledgments

This study was carried out as a part of research activities of “Fundamental Studies on Technologies for Steel Materials with Enhanced Strength and Functions” by Consortium of The Japan Research and Development Center of Metals (JRCM). Financial support from New Energy and Industrial Technology Development Organization (NEDO) is gratefully acknowledged.

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Authors and Affiliations

  1. IHI Corporation, Tokyo, Japan

    Koutarou Inose, Junko Kanbayashi, Daisuke Abe, Naoyuki Matsumoto & Yasumasa Nakanishi

Authors
  1. Koutarou Inose
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  2. Junko Kanbayashi
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  3. Daisuke Abe
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  4. Naoyuki Matsumoto
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  5. Yasumasa Nakanishi
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Corresponding author

Correspondence to Koutarou Inose.

Additional information

Doc. IIW-2382, recommended for publication by Commission XV “Design, Analysis, and Fabrication of Welded Structures.”

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Inose, K., Kanbayashi, J., Abe, D. et al. Design and welding method for high-strength steel structure using laser-arc hybrid welding. Weld World 57, 657–664 (2013). https://doi.org/10.1007/s40194-013-0064-0

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  • DOI: https://doi.org/10.1007/s40194-013-0064-0

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