What Is Flux Welding Used For? 

Flux welding is used for a variety of applications due to its ability to create strong, permanent welded joints in any environment. Flux welding is used across a broad spectrum of industries, from high-rise and pipeline construction, to automotive manufacturing, to repair and maintenance. In construction, flux welding is used to weld structural members together. In automotive manufacturing, flux welding is used for joining chassis and other assemblies. Flux welding is also used to repair damaged components in industries ranging from automotive and construction to infrastructure and power generation.

When To Use Flux Welding?

All arc welding techniques must provide protection against atmospheric contamination of the molten weld pool, whether by using shielding gasses or flux welding methods. Flux welding is particularly useful in windy, outdoor environments or confined spaces with little ventilation.

How Does Flux Welding Work?

Flux welding methods form a  subset of the arc welding processes. Like other arc welding methods, such as MIG (metal inert gas) or TIG (tungsten inert gas), flux welding involves generating an electric arc between a workpiece and an electrode. The electrode is either coated with flux, cored with flux, or the flux is applied directly to the weld area. The electric arc generated between the workpiece and electrode melts  the two materials by heating them to temperatures as high as 7000 °F. As the electrode and the workpiece melt together, the flux also melts, forming a liquid layer on top of the weld pool which protects the joint from interacting with elements in the air. 

How Does Flux Welding Differ From Gas Welding?

Flux welding differs from gas welding in that gas is not necessary for flux welding.  Flux welding is a collection of arc welding processes that uses the heat generated from an electric arc to weld parts together. Gas welding uses the heat generated from combustible fuel to melt and fuse materials together.