It is the MIG welder that is considered as neo of the most used welder of today. A process known as the GMAW or the gas metal arc welding is what this type of welder uses. It’s the welding gun that acts as the electrode which is the wire. The use of the continuous flow of inert gasses is also being used here. It is this one that the weld is protected while it cools.
A gas known as carbon dioxide is what is used for general welding. It is this gas that is used usually because it is cheap and it also gives you a good weld. You will have a cleaner weld the moment that you will mix argon gas and it also will create less spatter. It is when you are welding aluminum that it is a must that you will be using pure argon gas.
The moment that you will be using the GMAW process, then you will be able to get a number of different advantages compared to others. It is by using the welding gun that you can position the electrode properly without striking any arc. The moment that you have positioned the gun at the exact spot, then you can now pull the trigger.
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Due to the inert shielding gases that you can create seams that are clean and smooth. You will no longer be chipping off any slag. Whe y are working with sheet and thin metals, then a MIG welders are also perfect for it. The reason for this is that you can weld in lower amperage. It is also the MIG welder that uses DC to strike the welding arc. You will not be having a steady arc the moment that you will use AC.
The voltage, amperage and the speed can also be adjusted in a MIG welder. It is also possible to adjust the tensioner on the welding wire as it also has a valve to control the flow of gas.
You can also use a MIG welder without using any gas at all. When you do this, then you are doing a process known as the FCAW or flux cored arc welding. A hollow core that is filled with flux is what is being used in this one.
Since there is no shielding gas that is blown away, then you can do the FCAW outdoors. If you are working with thick metals, then the FCAW is also great as the flux core wire is much hotter. The moment that you will be using an FCAW, then you will be removing slags which are similar to an ordinary welder and that is the downside of it. The moment that you will use an FCAW process. Then you will be able to weld thinner and light sheet metals.