The role of protective gas in laser welding machine

In Laser Welding Machine, shielding gas will affect the weld formation, weld quality, weld penetration depth and width. In most cases, blowing shielding gas will have a positive effect on the weld, but There may also be adverse effects.

Positive effects:

1) Correctly blowing shielding gas will effectively protect the weld pool from reducing or even avoiding oxidation;

2) Correctly blowing in the shielding gas can effectively reduce the spatter generated during the welding process;

3) The correct blowing of the protective gas can promote the uniform spreading of the weld pool when it solidifies, so that the weld is formed uniformly and beautifully;

4) Correctly blowing in the protective gas can effectively reduce the shielding effect of the metal vapor plume or plasma cloud on the laser, and increase the effective utilization of the laser;

5) Properly blowing shielding gas can effectively reduce weld pores.

As long as the gas type, gas flow rate and blowing method are selected correctly, the ideal effect can be obtained.