مقاله جوشکاری با عنوان : The effects of the welding current on heat input, nugget geometry, and the mechanical and fractural properties of resistance spot welding on Mg/Al dissimilar materials Fatih Hayat چکیده : Investigating the joining capability of magnesium AZ31 alloy sheets and aluminium 1350 alloy sheetswith the application of resistance spot welding was the objective of this study. The weld current valuesused in the welding process of Al–Mg sheets were 22, 23, 25, 27, 29, 31, and 33 kA. The studies examinedthe nugget geometries of joined specimens, recorded the scanning electron microscopy (SEM) images ofthe welded zone and the fracture surface, and recorded the energy-dispersive spectroscopy (EDS, semiquantitative)analyses. The results of the experiment confirmed that nugget geometry was different forthe Al and Mg sides. Tensile shear tests carried out on the welded joints determined their strength andfailure mode. The increase in the weld current and duration resulted in an increase in the nugget sizeand the weld strength. According to observations, the tensile load bearing capacity (TLBC) increasedup to 29 kA of the weld current value. It was also found that tearing during fracture occurred in two differentways.
مقاله جوشکاری با عنوان : The effects of the welding current on heat input, nugget geometry, and the mechanical and fractural properties of resistance spot welding on Mg/Al dissimilar materials Fatih Hayat چکیده : Investigating the joining capability of magnesium AZ31 alloy sheets and aluminium 1350 alloy sheetswith the application of resistance spot welding was the objective of this study. The weld current valuesused in the welding process of Al–Mg sheets were 22, 23, 25, 27, 29, 31, and 33 kA. The studies examinedthe nugget geometries of joined specimens, recorded the scanning electron microscopy (SEM) images ofthe welded zone and the fracture surface, and recorded the energy-dispersive spectroscopy (EDS, semiquantitative)analyses. The results of the experiment confirmed that nugget geometry was different forthe Al and Mg sides. Tensile shear tests carried out on the welded joints determined their strength andfailure mode. The increase in the weld current and duration resulted in an increase in the nugget sizeand the weld strength. According to observations, the tensile load bearing capacity (TLBC) increasedup to 29 kA of the weld current value. It was also found that tearing during fracture occurred in two differentways.