Process application of laser welding in automobile industry

Laser welding has the advantages of high accuracy, clean and environmentally friendly, various types of processing materials, and high efficiency. It is widely used in high-end precision manufacturing fields such as the automotive industry. Today we will introduce the application of laser welding in the automotive industry.

The application of laser welding in the manufacturing process of the automobile industry mainly includes three types: laser welding of body assemblies and sub-assemblies, laser tailored welding of unequal thickness plates, and laser welding of auto parts.

Body laser welding is mainly divided into assembly welding, side wall and roof welding, and subsequent welding. The use of laser welding in the automotive industry can reduce the weight of the car on the one hand, improve the mobility of the car, and reduce fuel consumption; on the other hand, it can improve the quality of the product. And technological advancement.

Laser tailor welding is in the design and manufacturing of the car body. According to the different design and performance requirements of the car body, the plates of different thicknesses, different materials, different or the same performance are connected into a whole through laser cutting and assembling technology, and then stamped into a body. part. At present, laser tailor-welded blanks have been widely used in various parts of the car body, such as trunk reinforcement, trunk inner panel, shock absorber support, rear wheel cover, side wall inner panel, door inner panel, front floor, Front longitudinal beams, bumpers, cross beams, wheel covers, B-pillar connectors, center pillars, etc.

Laser welding of auto parts has the advantages of almost no deformation at the welding part, fast welding speed, and no need for post-weld heat treatment. At present, laser welding is widely used in the manufacture of automobile parts such as transmission gears, valve lifters, door hinges, drive shafts, steering shafts, engine exhaust pipes, clutches, turbocharger axles and chassis.