Understanding How A MIG Welder Works 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. The gases are used to protect the weld as it cools. It is the carbon dioxide gas that is commonly used for general welding. It is this gas that is used usually because it is cheap and it also gives you a good weld. Argon can also be mixed so that the arc will have less spatter which can give you a cleaner weld. It is when you are welding aluminum that it is a must that you will be using pure argon gas. It is when you will be using the GMAW that there will be a number of benefits that you can get compared to all others. It is by using the welding gun that you can position the electrode properly without striking any arc. The moment that you have it in the right position, then all you have to do is to pull the trigger.
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Due to the inert shielding gases that you can create seams that are clean and smooth. There is no slag that needs to be chipped off in this process. You can also find it to be a great device when you are working with sheet and thin metals. It is because it is this one that you can weld using lower amperage. It is a MIG welder that also use DC in order to strike the 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. The MIG welder that you have can also be used without the use of any gas. It is this one that is called as an FCAW or flux cored arc welding. The FCAW uses a wire that is hollow and filled with flux. It is also the FCAW that can be done outside since there is no shielding gas that will be blown away. If you are working with thick metals, then the FCAW is also great as the flux core wire is much hotter. But the downfall is that there are slags that you need to remove after the weld similar to his those of an ordinary welder. Thinner and light sheet metals can also be weld by an FCAW.