sheet metal processing is the core technology that sheet metal technicians must master, and it is also the main process flow of sheet metal product forming. Sheet metal processing involves traditional laser cutting, cold stamping production and processing, bending and pressing forming and other methods and technical main parameters. It also includes various cold stamping die structures and technical main parameters, various machine equipment principles and control methods, and also involves new stamping processing technology and new technologies and new processes. The manufacturing and processing of metal sheet parts is known as sheet metal fabrication. Proper selection of welding parameters is particularly critical for CO2‑shielded arc welding in the sheet metal fabrication of safety tool cabinets. It can not only directly harm the welding quality, and harm the size of the metal material spilled. Follow the high-precision sheet metal processing enterprises to see how to choose the main parameters of CO2 gas shielded welding for sheet metal processing of safety tool cabinet.

Positive and negative

Arc operating voltage

The arc operating voltage is the main factor that endangers the connection of molten droplets, splashing of metallic materials, short circuit fault frequency, arc ignition time and total welding width. In high current welding, the arc operating voltage is typically thirty to fifty volts.

Welding current

The size of the welding current should be selected according to the thickness of the welding part, the raw material of the welding wire, the diameter of the welding wire, the welding area and the required droplet migration method.

Welding Rate

With the increase (or decrease) of the welding rate, the total width of the weld, the remaining relative height and the melting depth are correspondingly decreased (or increased).

Cable Widening Length

The length of the deep part of the welding wire refers to the length of the welding wire extending from the conductive nozzle during the whole welding process. General tungsten wire CO2 gas shielded welding, wire widening length of 8 to 14mm; coarse wire CO2 gas shielded welding, wire widening length of 10 to 20mm