By adjusting the laser power and speed, if the cooling speed of laser welding is too fast, cracks and blowholes will easily occur. Slow down the welding speed and let the air holes have time to escape, and your so-called pinholes will be less. Cracks are related to the material itself, and some materials are crack-sensitive materials, which are easy to produce cracks during welding.

The method of laser arc recombination can also be used.