As an important means to realize intelligent manufacturing, a digital twin is expression of physical entities, which realizes virtual–real interaction and the iterative optimization product design manufacturing by constructing bridge information mapping between world virtual world. Resistance spot welding technology widely used in automotive aerospace other fields as linking process for manufac...

Resistance spot welding (RSW) aluminum alloys has a major problem of inconsistent quality from weld to weld, because the problems non-uniform oxide layer. The high resistivity causes strong heat released which influence significantly on electrode lifetime and quality. Much effort been devoted experimentally study sheet surface characteristics for as-received pretreatment by pickling in NaOH gla...

Resistance spot welding is an important manufacturing process in the automotive industry for assembling bodies. The quality and strength of the welds and, by extension, the body is mainly defined by the quality of the weld nuggets. The most effective parameters in this process are sheet material, geometry of electrodes, electrode force, current intensity, welding time and sheet thickness. The p...

In the current work we construct a nonlocal mathematical model describing the phase transition occurs during the resistance spot welding process in the industry of metallurgy. We then consider a time discretization scheme for solving the resulting nonlocal moving boundary problem. The scheme consists of solving at each time step a linear elliptic partial differential equation and then making a ...