Resistance spot welding of advanced steels in automotive industry

Today, the Resistance Spot Welding process is one of the most important stages in the construction of cars. Increasing the safety and lightness of cars to reduce fuel consumption has become one of the major challenges for car companies. The development of new steels with the idea of improving the mechanical properties and reducing various human and economic damages of cars has always been a point of interest for researchers due to the welding process. Accordingly, in this study, the resistance spot welding of steels used in the automotive industry is investigated. Similar and dissimilar connection of steels used in car body and chassis has been investigated. After introducing the welding process and different steels, the effect of resistance spot welding parameters (welding current, welding time and electrode force) on the microstructure of the welding area has been studied. In the following, the failuremechanics of resistance spot welding joints are investigated.

کلیدواژه ها:

Safety ، Lightness ، Fuel ، RSW.