Arc welding is the fastest and most efficient way to combine two pieces of metal and make them into one. It is used in manufacturing, metal repair, and metal sculpting. The process requires a source of electricity, two pieces of metal, and a metal rod that usually is coated with a substance called flux. Others also might use a wire welder that produces its own inert gases instead of using a flux coating. Let's take a closer look at how the flux works.

How Flux Core Works

When heated, the flux neutralizes potential contaminating gases and oxidation that would affect the quality of the weld. According to the New England Institute of Technology, the most commonly used flux core in arc welding contains carbon dioxide or a blend of 75% argon and 35% carbon dioxide. Those gases neutralize others that would affect the weld and make it possible to combine the two pieces of metal into one with the metal rod.

The Benefit Flux Cores Provide

Arc welding produces a molten puddle of metal that penetrates the metal pieces. The rod directs where the molten puddle goes and enables a skilled welder to lay a perfect bead. The flux coating protects the molten puddle against contamination so that the weld is strong and clean. Without it, the welder would have a much harder time controlling the weld and its ability to properly penetrate the two pieces of metal that are being welded together.

How the Flux Is Applied

There are two ways in which the flux coating becomes part of the rod. The first is at the manufacturing facility that produces various types of rods and bonds the flux to the outside of the rod. Welders just choose which type of rod they will use and go to work. The rods also might lack a flux coating. Instead, the welder heats the rod and dips it into powdered flux. The heat causes the flux to bond to the rod so that the welder can get to work.

Are you in need of an expert welder? Reach out to Bulldog Metal Works today to get started with our team! We're happy to answer your questions regarding our quality services, our team's qualifications, and how we can meet your needs.