About Flux Wire MIG Welding

Types

• Flux cored wire is either gas-shielded or self-shielded. External shielding gas is required for gas-shielded flux cored wire. This type of wire works well in out-of-position locations, such as overhead or vertically. The flux coating solidifies quickly, and you can remove the slag easily. Self-shielding flux cored wire uses the gas generated by the flux from the burning wire to protect the weld pool. This makes the welder more portable because it does not require a gas tank.

Advantages

• Overall, MIG welders are known for producing attractive welds. Flux cored wire works well in windy environments and creates a strong weld quickly. It has a high deposition rate, meaning you can create a strong weld fast. You can also work on rusty or dirty materials because the flux wire traps the materials within the weld. Choosing the right type of MIG welding wire involves matching the right type of wire to the right materials. While flux cored wire does have its advantages, it is not ideal for every project.

Disadvantages

• The main drawback to flux cored wire is that it is one of the most expensive types of wire you can use. Other materials, such as solid wire, produce more aesthetically-pleasing beads and do not have slag to remove.

Tips

• Always use a drag technique when working with flux cored welding. You will also need a chipping hammer or wire brush to remove the thin layer of slag that forms on the weld. For best results, keep your wire clean and dry while working with it.