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Process application of laser welding in the automotive industry

Laser welding has the advantages of high precision, cleanliness, and environmental protection, various types of processed materials, and high efficiency. It 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 manufacturing process of the automobile industry mainly includes three major types: laser assembly welding of body assemblies and sub-assemblies, laser tailor welding of unequal-thickness plates, and laser welding of auto parts.

Laser welding of car bodies is mainly divided into assembly welding, welding of side panels and top covers, and follow-up welding. The use of laser welding in the automotive industry can, on the one hand, reduce the car’s weight, improve the car’s maneuverability, 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 car bodies. According to the design and performance requirements of the car body, plates of different thicknesses, different materials, and different or the same performance are connected into a whole through laser cutting and assembly technology and then stamped into a certain shape of the car body. part. At present, laser welded blanks have been widely used in various parts of automobile bodies, such as trunk reinforcement panels, trunk inner panels, shock absorber supports, rear wheel covers, side panel inner panels, door inner panels, front floors, Front longitudinal beams, bumpers, cross members, wheel covers, B-pillar connectors, center pillars, etc.

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

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