Jet composition in magnetic pulse welding: Al-Al and Al-Mg couples Academic Article uri icon

abstract

  • Magnetic pulse welding (MPW) produces a mechanically induced essentially solid state but partially fusion-type weld, with an extremely small fusion zone and extremely high cooling rates. Composition of material jet emission in MPW was investigated for similar and dissimilar metal lap joints. The jet residues emitted from Al/Al and Al/Mg lap joints were collected and characterized, and their composition was microanalyzed by scanning electron microscopy with energy-dispersive spectometry (SEM-EDS). The composition of the jet remains was governed by the degree of relative density difference between the two metal components. The metal jet emitted during Al/Mg welding was mainly composed of Mg, the metal component with lower density. The approximate thickness of the layers, peeled during the MPW process, was calculated; an average thickness of 15 μm was found for the Al-Al …

publication date

  • August 1, 2015

published in