衝撃圧着時のメタルジェット放出および接合界面形態に関する数値解析ならびに実験的検討

• 柿崎 正悟

  東京工業大学大学院総合理工学研究科 大学院生

• 渡邉 満洋

  東京工業大学大学院理工学研究科材料工学専攻

• 熊井 真次

  東京工業大学大学院総合理工学研究科材料物理科学専攻

書誌事項

タイトル別名

• Simulation and experimental analysis of metal jet emission and weld interface morphology in impact welding

抄録

Metal jet emission and weld interface formation in impact welding were investigated for similar- and dissimilar-metal lap joints. Numerical simulation of oblique collision between metal plates was performed using smoothed particle hydrodynamics (SPH) method for various plate thicknesses, collision velocities, and collision angles. Metal jet emission and formation of the characteristic wavy weld interface in impact welding were reproduced successfully. The composition of the metal jet was governed by the degree of relative density difference between two metals. When the density difference was large, such as Al/Cu and Al/Ni lap joints, the metal jet was mainly composed of the metal component with lower density, Al. On the other hand, when the density difference was small or zero, such as for Cu/Ni and Al/Al lap joints, the metal jet was composed of both metal components. Several types of lap joints were fabricated by magnetic pulse welding (MPW). Metal jets emitted from Al/Cu and Cu/Al lap joints were collected, and their components were analyzed by X-ray diffraction. The microstructure of the weld interface was also examined. The experimental results were in good agreement with the simulation results.

収録刊行物

• 軽金属

  軽金属 61 (7), 328-333, 2011

  一般社団法人 軽金属学会

キーワード

• impact welding
• interface morphology
• metal jet
• magnetic pulse welding
• smoothed particle hydrodynamics

詳細情報

• CRID: 1390001206340016640
• NII論文ID: 130004482063
• DOI: 10.2464/jilm.61.328
• ISSN: 18808018
• ISSN: 04515994
• 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