Laser welding has the advantages of high accuracy, clean environmental protection, diverse processing materials and high efficiency, and is widely used in high-end precision manufacturing fields such as the automotive industry. Today we will introduce the process application of laser welding in the automotive industry.

The application of laser welding in the automotive industry manufacturing process mainly includes three types: laser welding of body assembly and sub-assembly, laser welding of plates of varying thickness, laser welding of automotive parts.

Body laser welding is mainly divided into assembly welding, side wall and top cover welding, follow-up welding, the use of laser welding in the automotive industry on the one hand can reduce the weight of the car, improve the motor performance of the car, while reducing fuel consumption; On the other hand, improve the quality of products and technical advancement.

In the design and manufacture of the body, according to the different design and performance requirements of the body, the plates with different thickness, different materials, different or the same performance are connected into a whole through laser cutting and assembly technology, and then formed into a certain part of the body by stamping. At present, the laser welded plate has been widely used in various parts of the car body, such as the trunk reinforcing plate, the luggage box board, the shock absorber support, the rear wheel cover, the side wall inner plate, the door inner plate, the front floor, the front longitudinal beam, the bumper, the beam, the wheel cover, the B-pillar connector, the column and so on.

Laser welding of auto parts has the advantages of almost no deformation of welding parts, fast welding speed, and no post-welding heat treatment. At present, laser welding is widely used in the manufacture of automotive components such as transmission gears, valve tappets, door hinges, drive shafts, steering shafts, engine exhaust pipes, clutches, supercharger axles and chassis.