溶融池内の電磁対流に関する実証実験

• 横谷 真一郎

  日本工業大学

• 岡田 恒雄

  日本工業大学

• 浅古 豊

  東京都立大学

• 松縄 朗

  大阪大学溶接工学研究所

書誌事項

タイトル別名

• Experimental Verification of Electro-magnetically Driven Flow in the Weld Pool.

抄録

The authors have developed a mathematical model of heat and mass transfer in the stationary TIG arc weld pool considering four possible forces which induce streaming. They are two kinds of body forces, i.e., Electro-magnetic and buoyancy forces, and two shear stresses, i.e., surface tension and aerodynamic drag force. However, every mathematical modeling is always made under the appropri ate assumption and boundary conditions as well as some simplification. Also, one encounters problems on the lack of physical properties of material, especially at elevated temperature. Therefore, it is essentially necessary to verify the model by experiments.<BR>The present authors have conducted various model experiments for the effects of electro-magnetic force and aerodynamic drag force to verify the validity of developed model. In this paper, it was revealed the experimental results of the individual effect of electromagnetic force on the convection using a mercury pool contained in a basin with current flow and velocity distribution of liquid was measured.<BR>Also, another model experiment was performed using a wood's metal surface and electric current was flown from the soldering iron to wood's metal and the resultant penetration shape was obserbed. In both model experiments, the coincidence of calculated and experimental model was experimentally verified.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 12 (1), 89-93, 1994

  一般社団法人 溶接学会

キーワード

• Arc welding
• Penetration
• Convection
• Electro-magnetic force
• Pressure

詳細情報

• CRID: 1390282679700697088
• NII論文ID: 130003764403
• DOI: 10.2207/qjjws.12.89
• ISSN: 24348252
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可