Numerical analyses of material flows and thermal processes during friction plug welding for AA2219 aluminum alloy
作者: Bo DuXinqi YangWenshen TangZhuanping Sun
作者单位: 1Tianjin Key Laboratory of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, People’s Republic of China
2Tianjin Long March Rocket Manufacture Co., Ltd., Tianjin, 300451, People’s Republic of China
刊名: Journal of Materials Processing Tech., 2020, Vol.278
来源数据库: Elsevier Journal
DOI: 10.1016/j.jmatprotec.2019.116466
关键词: AA2219 aluminum alloyFriction plug weldingFinite-element modelMaterial flowTemperature distribution
原始语种摘要: Abstract(#br)A coupled thermo-mechanical model is developed for friction plug welding (FPW) process of AA2219 aluminum alloy, which is validated by the experimental results of the torque and temperature history. Both the deformation of plug and base metal are considered in this model. It is concluded that weak-bonding and unbonding is caused by the poor interface normal force and material flow based on the simulational and experimental results. Significant inhomogeneity in distribution of temperature, effective strain and effective stress is observed along the thickness direction of FPW joint, resulting in the inhomogeneity of microstructure and mechanical property. The peak temperature of bonding interface can reach 508 °C, which is 79% of the melting point of base metal. Higher welding...
全文获取路径: Elsevier  (合作)
影响因子:1.953 (2012)

  • aluminum 
  • material 充填料
  • mechanical 机械的
  • during 在的期间
  • welding 熔结
  • alloy 合金
  • promote 助长
  • inhomogeneity 不均匀性
  • force 
  • reach 河区