Why do we use nitrogen and argon during laser welding?
First of all, nitrogen and argon protection can isolate oxygen, nitrogen, hydrogen, etc. in the air to prevent oxidation of the weld and the generation of pores; Another function of using shielding gas is to protect the focusing lens from spatter damage generated during welding. However, now welding machines are equipped with protective lenses in …
Why do we use nitrogen and argon during laser welding? Read More »