Laser welding has been widely used in the electronics industry, especially in the microelectronics industry. Due to the small heat affected zone, rapid heating concentration, and low thermal stress of laser welding, it has shown unique advantages in the packaging of integrated circuits and semiconductor device shells. In the development of vacuum devices, laser welding has also been applied, such as molybdenum focusing electrodes and stainless steel support rings, fast heating cathode filament components, etc. The thickness of elastic thin-walled corrugated sheets in sensors or temperature controllers ranges from 0.05 to 0.1mm, which is difficult to solve using traditional welding methods. TIG welding is easy to weld through, has poor plasma stability, and has many influencing factors. However, laser welding has a good effect and has been widely used.