Differentials are widely used in both passenger and commercial vehicles. A differential consists of three main components: two housing parts and a gear assembly, which includes components such as a cross shaft and planetary gears.

The automated welding production line is mainly composed of an ultrasonic cleaning machine, loading and unloading robots, a Dacheng high-power laser cleaning machine, a servo pressing device, an end-jump testing device, a medium-frequency induction heating device, a laser welding device, a weld slag cleaning device, natural air cooling, ultrasonic flaw detection, drying, end-jump testing, a control and monitoring system, a product traceability system, a laser-specific fume purifier, and a cooling unit