How A Mig Welder Works
- Date: 2009-05-02 - Word Count: 268
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One of the most common welders is the MIG welder. These welders work by feeding an electrode wire through a welding gun with a continuous flow of inert gas, called the shield gas.
The most common gas used is carbon dioxide, as it is cheap and also creates a good weld. Sometimes, Argon and Carbon dioxide are mixed together to create a welding arc with less spatter, which results in a cleaner weld.
The GMAW process has a number of advantages over the more common welding processes. The welding gun is equipped with a trigger which is connected to the electrode. This allows you to position the electrode properly first, before you pull the trigger, creating the welding arc.
With a MIG welder, you can adjust the voltage, ampere and the speed of the wire being fed through the welder. Then tension on the welding wire can also be varied. It even has a valve to control the flow of gas.
You can also use a welder without shielding gas. This requires a flux core wire, which is a hollow welding wire filled with flux. This process is called Flux Cored Arc Welding, or FCAW. Most welders have the option of switching the polarity of the arc, which is used for flux cored wire.
MIG welders can be used to weld a variety of metals, including aluminum, tin, copper, zinc, brass and steel. There are dozens of compositions of welding wires to choose from, for all types of situations. For a beginner, the MIG welder is the ideal choice, as it can weld many types of metal, is versatile and easy to use.
The most common gas used is carbon dioxide, as it is cheap and also creates a good weld. Sometimes, Argon and Carbon dioxide are mixed together to create a welding arc with less spatter, which results in a cleaner weld.
The GMAW process has a number of advantages over the more common welding processes. The welding gun is equipped with a trigger which is connected to the electrode. This allows you to position the electrode properly first, before you pull the trigger, creating the welding arc.
With a MIG welder, you can adjust the voltage, ampere and the speed of the wire being fed through the welder. Then tension on the welding wire can also be varied. It even has a valve to control the flow of gas.
You can also use a welder without shielding gas. This requires a flux core wire, which is a hollow welding wire filled with flux. This process is called Flux Cored Arc Welding, or FCAW. Most welders have the option of switching the polarity of the arc, which is used for flux cored wire.
MIG welders can be used to weld a variety of metals, including aluminum, tin, copper, zinc, brass and steel. There are dozens of compositions of welding wires to choose from, for all types of situations. For a beginner, the MIG welder is the ideal choice, as it can weld many types of metal, is versatile and easy to use.
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