Incorrect use of shielding gas causes adverse effects on welding

Incorrect use of shielding gas will cause bad effects on Laser Welding Machine:

1) Improper blowing of shielding gas may lead to poor welds:

①Selecting the wrong type of gas may cause cracks in the weld, and may also reduce the mechanical properties of the weld;

②Selecting the wrong gas injection flow rate may lead to more serious oxidation of the weld (whether the flow rate is too large or too small), and may also cause the weld pool metal to be seriously disturbed by external forces, causing the weld to collapse or form unevenly;

③Selecting the wrong gas blowing method will cause the weld to fail to achieve the protective effect or even have no protective effect or have a negative impact on the weld formation;

2) Blowing into the shielding gas will have a certain effect on the weld penetration, especially when thin plates are welded, it will reduce the weld penetration.