I. The use of copper nozzles

The classification of copper nozzles is mainly distinguished: whether to feed wire, the size of the welding wire, the welding angle, as shown in the figure above, for an example, the inner corner wire feeding welding 1.0 welding wire uses AS-12 cooper nozzle.

II. Selection of welding wire

Depending on the differences of the welding plate, we need to use different welding wires (gas-protected solid cored welding wires)

Stainless steel = stainless steel welding wiree.g. ER304

Carbon steel / galvanized sheet = iron wire

Aluminum = aluminum wire(As for aluminum welding wires, we recommend using more than 5 series of series of alloy aluminum. Because its hardness is high and not easy to get stuck.)

III. Gas selection

①There are two kinds of easily seen nitrogen or argon. As for welded stainless steel, we recommend using nitrogen because that welding effect is better. But be sure do not use mixed gas or nitrogen dioxide gas.

②Air pressure requirements: the flow meter is not less than 15, and the pressure gauge is not less than 3

IV. focus

Usually, 0 joule welding is used (0 of the scale tube does not mean that the focus is 0, which is affected by the laser. So we’d better be subject to the actual situation)

Note: The positive focal length is the position where the laser flame is the largest and the sound is the clearest
General process control of continuous penetration welding: if you can see slight discoloration traces on the back at a single point, then you can achieve better penetration welding during continuous welding; if you see obvious traces on the back, you can even feel it If it has been penetrated, then it will spatter during continuous welding, and even a deep pit will appear. Specifically, the focal length, energy and waveform should be adjusted according to the actual sample.
The thinner the material, the smaller the required spot, otherwise there will be welding through.