Topic
Spot welding
About: Spot welding is a research topic. Over the lifetime, 12491 publications have been published within this topic receiving 89845 citations. The topic is also known as: Spot_welding.
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TL;DR: In this article, the microstructure of the fusion zone and the heat affected zone is investigated in resistance spot welding of AISI 430 ferritic stainless steels and the phase transformations which occur during weld thermal cycle were analyzed in details, based on the physical metallurgy of welding of the ferritic steels.
92 citations
SIDI1
TL;DR: In this paper, the authors focused the tests on the description of the significant parameters of process FSSW (friction stir spot welding) which will be at the origin of the realization of the weld bead.
92 citations
TL;DR: In this article, an approximate limit load analysis for spot welds is conducted to understand the failure loads under combinations of resultant forces and resultant moments with consideration of the global equilibrium conditions only.
92 citations
TL;DR: In this article, the interfacial characteristics of resistance spot welded steel-aluminum alloy joint were investigated using electron microscopy, and it was shown that reaction product FeAl3 is generated in the peripheral region of the weld while a reaction layer consisting of Fe2Al5 adjacent to steel and FeAl 3 adjacent to aluminum alloy forms in the central region.
92 citations
Journal Article•
TL;DR: In this paper, the weld nugget in resistance spot welding of Type 347 stainless steel was found, using finite element methods, to initiate in a ring shape at a distance from the electrode center.
Abstract: The weld nugget in resistance spot welding of Type 347 stainless steel was found, using f inite element methods, to initiate in a ring shape at a distance from the electrode center. The ring-like weld nugget expands inward and outward during the welding cycles. The welding current, electrode pressure and hold time affected the thermomechanical interactions of the welding process and changed the f inal nugget geometry. Also, when spot welding workpieces of unequal thicknesses, it was found that the weld nugget formed mostly in the thicker workpiece than in the thinner workpiece, and when spot welding dissimilar materials, the weld nugget formed more in the workpiece of lower thermal conductivity or higher electrical resistivity.
92 citations