Actual case: After Volkswagen adopted laser-MIG hybrid welding technology, the efficiency of the body production line was significantly improved by 40%, while the weight of the body was reduced by 15%. This not only speeds up the production rhythm and reduces production costs, but also helps the energy conservation and emission reduction goals of automobiles, fully demonstrating the huge advantages and application value of laser hybrid welding technology in the field of automobile manufacturing.

From the manufacture of energy storage battery cells to the assembly of battery PACKs, welding is a very important manufacturing process. The conductivity, strength, air tightness, metal fatigue and corrosion resistance of lithium batteries are typical battery welding quality evaluation standards. The selection of welding methods and welding processes will directly affect the cost, quality, safety and consistency of the battery.

Application background Laser oscillating welding technology was born out of the urgent need for welding quality and efficiency in modern manufacturing. Traditional welding technology has deficiencies in precision, strength and complex structure, which has prompted the rapid application of laser welding in various fields. However, it still has defects such as pores and cracks, and has limitations in welding dissimilar materials and complex-shaped parts. It is difficult to meet the stringent requirements of high-end fields such as aerospace and automobile manufacturing, affecting product quality, safety, production efficiency, etc., and increasing the manufacturing cost of enterprises. Against this background, laser oscillating welding technology came into being.

For laser wire-filling welding of butt joints of commonly used materials, in order to improve weld formation, it is generally recommended that the laser source and fiber core diameters, and the welding head configuration should ensure that the focused spot diameter is between 0.4mm and 0.6mm, and the welding wire should be of appropriate grade.