If a mural works as a painting, the screen of dots, lines, faces, black, white, gray and even color processing can be achieved through the welding method. Various types of wire, a variety of materials, the application of different welding technology will be on the screen in different forms.

Figure 3 shows the works using the manual plasma cutting method, using the heat of the cutting current, so that the edge of the cutting to produce heat-affected areas, so that the bright white stainless steel "dye" on a lap slightly gradient color. At the same time, through the adjustment of welding specifications, the strong air flow from the cutting of the gun will melt in the cut plate at the cutting edge of the moment of "blowing" a circle of randomly formed texture, after the completion of metal cooling, curing for a beautiful cut marks, and the middle of the flat bright stainless steel plate formed a texture contrast. The formation process of this stochastic effect has some contingency, but it is a phenomenon which must be produced under certain welding norm.

From the perspective of size, the larger size of the welding art mural can be semi-automatic CO2 gas shielded welding, small can be used by hand tungsten argon arc welding.