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Bead formation and wire temperature distribution during ULTRA-HIGH-SPEED GTA WELDING using pulse-heated hot-wire

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Abstract

The melting of filler wire is investigated in detail to obtain the precise temperature distribution of the filler wire during ultra-high-speed gas tungsten arc (GTA) welding and develop ultra-high-speed GTA welding with a pulse-heated hot-wire system for three kinds of materials. The melting phenomena of the filler wire were observed using a high-speed camera, and temperature distributions of the filler wire were measured using a radiation thermometer. The results show that ultra-high-speed GTA welding can be achieved with suitable welding conditions for each material. Ultra-high-speed GTA welding requires suitable wire current to obtain a suitable temperature distribution and melting position of the filler wire. Moreover, the temperature distributions of three kinds of filler wire could be estimated using a proposed simple estimation method.

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Authors and Affiliations

  1. Department of Mechanical System Engineering, Graduate School of Engineering, Hiroshima University, Bab-Hitachi Industrial Co., Higashi-Hiroshima, Japan

    Kenji Shinozaki (Prof.) & Motomichi Yamamoto (Prof.)

  2. Bab-Hitachi Industrial Co. Babcock-Hitachi K.K, Hiroshima-ken, Japan

    Koichi Mitsuhata

  3. Bab-Hitachi Industrial Co., Hiroshima-ken, Japan

    Toshiharu Nagashima,  Tatsunori Kanazawa &  Hitoshi Arashin

Authors
  1. Kenji Shinozaki
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  2. Motomichi Yamamoto
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  3. Koichi Mitsuhata
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  4. Toshiharu Nagashima
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  5. Tatsunori Kanazawa
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  6. Hitoshi Arashin
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Corresponding author

Correspondence to Kenji Shinozaki.

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Shinozaki, K., Yamamoto, M., Mitsuhata, K. et al. Bead formation and wire temperature distribution during ULTRA-HIGH-SPEED GTA WELDING using pulse-heated hot-wire. Weld World 55, 12–18 (2011). https://doi.org/10.1007/BF03321281

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  • DOI: https://doi.org/10.1007/BF03321281

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