ADVANCED SPOT WELDING TECHNOLOGIES OF THIN-WALLED PARTS

At the present stage, resistance spot welding is widely used in the field of mechanical engineering. Positive advantages of this welding process are the considerable level of welding mechanization and automation, versatility and flexibility of the process, relatively small residual deformations. However, the level of defective spot-welds in the mass production of welded structures reaches 5%. Currently, the quality of spot-welded joints is accompanied by increased reliability and durability requirements for welds, a minimum level of residual deformation and minimizing defects as lack of fusion and metal splashing. As a result, modern technologies of doublesided spot welding and general technique of spot-welded joints are considered.