Arc welding processes vary with the workpieces they produce, and choosing the right one is critical to the success of the project. Although both MIG and TIG welding use arcs to form welds, the techniques are very different, and choosing the wrong welding technique can cause more than one headache. Read on to see why you might want to choose between MIG or TIG welding. (Click here to learn why TIG is better than MIG.)
MIG and TIG: MIG welding flow chart
Both MIG and TIG welding use arc welding. The difference between the two is the way arcs are used. MIG (Metal Inert Gas) welding uses a wire feed that continuously passes through the welding torch to generate sparks and then melts to form a weld. TIG (Tungsten Inert Gas) welding uses long electrodes to fuse two metals directly together.
Diversification
Many reasons make MIG welding the best choice for your job. First, it is more diverse. TIG welding can be used on more types of metals, but its effectiveness is limited in thicker jobs. MIG welding can be used for aluminum, stainless steel and steel, as well as a variety of thicknesses from sheet metal 26 to heavy structural plates.
MIG welding has a greater advantage than TIG because the wire feed not only acts as an electrode, but also as a filler. As a result, thicker parts can be fused together without having to fully heat them. And because it uses fillers instead of fusing agents, MIG welding can be used to weld two different materials together.
speed
Another reason to choose MIG and TIG is speed. MIG spray guns are designed to run continuously for long periods of time, making them more efficient and effective than comparable MIG spray guns. For large industrial operations that require high productivity, MIG is the first choice. (It's also great for automation). In contrast, TIG welding is much slower because it focuses on details.
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cost
As with any manufacturing job, time equals money. And, because the MIG welding process is very fast, it is more cost effective. MIG parts are also easier to obtain and cheaper than TIG.
ease
Finally, MIG welding is easier to learn and can be perfected in just a few weeks of training. In fact, it is even called a "hot glue gun" for welding, and you can start or stop welding just by pulling the trigger. MIG welders can only hold and operate the spray gun with one hand, so it is a better choice to start a welder. On the other hand, TIG welding is a specialized technique that requires two hands and one foot to do-everything is done separately.
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