Tips And Tricks For Strong Mig Welding

By Author: William Hauselberg
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Metal Inert Gas Welding, better known as MIG welding, is considered a revolutionary welding method because it provides for a strong weld in a much shorter timeframe. However, learning to make a strong and stable MIG weld takes time and practice. Below are some tips and tricks for strong MIG welding.

Read the Owner's Manual

Many MIG welders completely ignore their owner's manual, which is often the best place to begin learning the best tips and tricks for MIG welding. In addition to offering numerous safety precautions, the manual also talks of how welders can adjust various settings to make a strong and stable weld.

Electrode Extensions

One aspect of MIG welding training involves electrode extensions. This is generally considered the most important aspect of having a strong MIG weld, and is the area that beginning welders need to practice most often to understand its intricacies. Most experienced MIG welders agree it's best to maintain one-fourth to three-eights inch of electrode sticking out of the welding gun. Electrodes that are either too short or too long can result in welds that are of poor ...
... visual quality and possibly poor integrity of the metal.

Wire Size and Material

Using the correct size of wire can also lead to strong MIG welds. Smaller diameter wires are used for thin metals, while larger ones are good for thicker metals. Owner's manuals usually have a wire chart that shows what type of wire is best used for particular kinds of metals. It's very important to use a style of wire that matches the metal being welded. For example, using an aluminum wire to weld aluminum works best.

Shielding Gas

Knowing how to use the right concentration of shielding gas is critical for strong MIG welding. Most experts agree that CO2 is the best gas to penetrate welds done on steel, but it's also known that it's high temperatures may melt thinner metal. For best results, thinner metals will weld stronger with a mix of 75% CO2 and 25% argon. When welding aluminum, argon should be the only shielding gas used. Stainless steel works best with a mixture of CO2, helium and argon to produce the strongest weld.

Holding the Gun

Many beginning welders fail to realize during MIG welding training that how they hold the welding gun will go far in determining the quality of their MIG weld. Both hands should be used to hold the gun during the weld, with a clean nozzle, gun liners and drive rolls also needed for a professional-quality weld. Since welding often involves working in tight or awkward positions, it's advisable to keep a small weld pool to help maintain bead control. Using the smallest possible wire will also lead to a better weld, because how the wire is directed at the edge of the weld pool will determine the consistency and strength of the weld.

By following these tips and tricks of the trade during MIG welding training, MIG welding should become not only easier, but also be of much improved quality. With lots of practice, MIG welding can become an area of specialization that all welders should be able to master quite well.

The author has an immense knowledge on MIG welding training. Know more about welding training related info in his website http://www.weldingschool.com/articles/migwelding/