Development of High-tensile Strength Steel Welding Method for Shipbuilding using Hot-wire Laser Welding Technology

• Project/Area Number: 22760637
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Naval and maritime engineering
• Research Institution: Hiroshima University
• Principal Investigator: YAMAMOTO Motomichi 広島大学, 大学院・工学研究院, 准教授 (30274111)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 建造 / 艤装 / 造船 / 溶接 / レーザ / ホットワイヤ / レーザ溶接 / 低入熱 / 粗粒化抑制 / 可視化 / 低希釈

Research Abstract

The novel technology of vertical welding for a heavy joint as a alternative technology of electro-gas welding by using the new-type hot-wire laser welding method were developed. The prospects of ultra-low heat input, ultra-low dilution ratio, high-efficiency and so on could be obtained by combining remote-laser or high-power diode laser and a hot-wire system.

Research Products

• [Journal Article] Development of High-efficiency/ High-quality Hot-wire Laser Fillet Welding Process (2011)
  • Author(s): Kota Kadoi, Kenji Shinozaki, Motomichi Yamamoto, Katsura Owaki, Koutarou Inose and Daisuke Takayanagi
  • Journal Title: 溶接学会論文集 Volume: 29-3 Pages: 62-65
  • NAID: 130004889420
  • Peer Reviewed
• [Journal Article] Development of High-efficiency/High-quality Hot-wire Laser Fillet Welding Process (2011)
  • Author(s): Kota Kadoi, et al
  • Journal Title: 溶接学会論文集 Volume: 29-3 Pages: 62-65
  • Peer Reviewed
• [Presentation] Development of High-Efficiency/High-Quality Fillet Welding Process Usine Hot-Wire Laser Welding Method (2011)
  • Author(s): Motomichi Yamamoto
  • Organizer: The 25^<th> Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures
  • Place of Presentation: 韓国,仁川
  • Year and Date: 2011-09-28
• [Presentation] ホットワイヤ・レーザ溶接法による極低変形すみ肉溶接技術の開発 (2011)
  • Author(s): 門井浩太
  • Organizer: 溶接学会平成23年度秋季全国大会
  • Place of Presentation: 三重県,伊勢市
  • Year and Date: 2011-09-07
• [Presentation] Development of High-efficiency/High-quality Fillet Welding Process using Hot-wire Laser Welding Method (2011)
  • Author(s): Motomichi Yamamoto
  • Organizer: 64th Annual Assembly & International Conference of the International Institute of Welding
  • Place of Presentation: インド,チェンナイ
  • Year and Date: 2011-07-18
• [Presentation] High-quality Fillet Welding Process using Hot-wire Laser Welding Method (2011)
  • Author(s): Motomichi Yamamoto
  • Organizer: The First East Asia Symposium on Technology of Welding & Joining
  • Place of Presentation: 中国,上海
  • Year and Date: 2011-05-31
• [Presentation] Development of High-Efficiency/ High-Quality Fillet Welding Process Using Hot-Wire Laser Welding Method (2011)
  • Author(s): Motomichi Yamamoto, Kenji Shinozaki, KotaKadoi, Katsura Oowaki, Koutarou Inose, and Akira Room Fujinaga
  • Organizer: The 25th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures
  • Place of Presentation: Incheon, KOREA
• [Presentation] ホットワイヤ・レーザ溶接法による極低変形すみ肉溶接技術の開発 (2011)
  • Author(s): 門井浩太, 篠崎賢二, 山本元道, 宝蔵雄一, 井上寛康, 大脇桂, 猪瀬幸太郎
  • Organizer: 溶接学会平成23年度秋季全国大会
  • Place of Presentation: 三重県
• [Presentation] Development of High-efficiency/ High-quality Fillet Welding Process using Hot-wire Laser Welding Method (2011)
  • Author(s): Motomichi Yamamoto, Kenji Shinozaki, KotaKadoi, Katsura Oowaki, Koutarou Inose
  • Organizer: 64th Annual Assembly & International Conference of the International Institute of Welding
  • Place of Presentation: Chennai, India
• [Presentation] Development of High-efficiency/ High-quality Fillet Welding Process using Hot-wire Laser Welding Method (2011)
  • Author(s): Motomichi Yamamoto, Kenji Shinozaki, KotaKadoi, Katsura Oowaki, Koutarou Inose
  • Organizer: The First East Asia Symposium on Technology of Welding & Joining
  • Place of Presentation: Shanghai, China
• [Patent(Industrial Property Rights)] ホットワイヤレーザ溶接法法と装置 (2011)
  • Inventor(s): 篠崎賢二,山本元道,門井浩太,金沢辰徳,永島利治
  • Industrial Property Rights Holder: バブ日立工業
  • Industrial Property Number: 2011-074315
  • Filing Date: 2011-03-30