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Should you use MIG or TIG welding aluminum is one of the most common questions among welders.
It’s a topic that can cause a lot of confusion because the processes of MIG welding and TIG welding aluminum are very different.
There are considerable differences between the two techniques, and these differences cause most of the confusion. While there are many similarities, the differences are the ones that cause most of the confusion in the welding community.
Take a look at the following table to highlight the differences between the two processes.
MIG Welding TIG Welding Costs less expensive more expensive Ideal for use when welding thin material Requires a large amount of shielding gas Burns back efficiently Can be applied to thick material Can burn through metal More forgiving of mistakes More difficult
Types of welding include MIG welding and TIG welding. MIG (Metal Inert Gas) welding is used when welding mild steel, stainless steel, and similar metals.
TIG (Tungsten Inert Gas) welding is used for this process and other non-ferrous metals.
Comparison of TIG welding vs. MIG welding
As a welder, you will make many decisions, the best of which is what welding process to use for each of the many different types of metals and applications you will encounter.
The differences between TIG welding vs. MIG welding aluminum are vast, and if you don’t choose the right process for the job, many things can go wrong.
We are here to give you a thorough breakdown of the differences between TIG welding vs. MIG welding aluminum, so you can make the best decision possible.
There is no doubt about the benefits of Mig welding for aluminum. It is faster, cleaner, and more forgiving.
However, there are situations where MIG welding aluminum is not the best option. If you build a project that requires welding more than a few aluminum sheets together, then MIG welding aluminum may not be the best option.
If you are trying to join aluminum with another metal, then TIG welding is the best option. The key to Mig welding this metal is to match the amperage with the thickness of the material being welded.
The thicker the metal, the higher the amp setting you should use. You should not weld aluminum on anything less than 25 amps.
TIG Welding Aluminium
Aluminum welding is a specific kind of welding, which should be done only by experts. You can do it with the help of TIG welding or with the service of MIG.
Of course, both methods are entirely different, and they don’t have anything in common. If you think that you can use a regular welding machine, you are wrong.
To weld aluminum, you need to pay attention to several aspects; otherwise, you can damage the material or cause a severe fire.
Aluminum welding is done either by a TIG weld or by using a MIG weld. A MIG weld is the more straightforward and cheaper of the two welding methods.
The desired thickness of the metal and the joint required are the two main factors determining which of the two welding methods to apply.
The thickness of the metal to be welded, the type of joint to be made, and any reinforcement (e.g., pipes, wires, tubes, etc.) are the main factors that affect the choice of welding technique.
For making joints between aluminum parts, the following techniques are used.
MIG Welding Aluminium
For MIG welding, the process is similar to joining steel, but there are some differences.
First, the settings are the same, except that the wire speed is reduced to around 3 to 5 inches per second for aluminum.
The electrode also needs to be changed for a more reactive type.
You can weld some aluminum with a mild steel wire, but this is not always suitable.
Welding aluminum with mild steel wire will increase the chance of porosity and a higher chance of cracking.
The electrode size should be at least 2% more than the parent metal thickness, and the wire feed speed needs to be set to between 3 and 5 inches per second.
MIG Welding aluminum is relatively simple, but there are specific techniques you need to follow to ensure your welds have good penetration and are stable.
Keep these in mind, and you’ll have no trouble getting good welds.
In addition to these techniques, remember that MIG welding aluminum requires a slightly different set-up.
The main difference is that your aluminum wire should be slightly shorter than the wire you would use when welding steel.
This is because the wire is cooler and will not melt as quickly as steel wire, so it needs to be closer to the electrode.
If your wire is too far away from the electrode, it can’t melt well.
Key differences between a TIG weld and a MIG weld
MIG welding and TIG welding are both used to join metal pieces together, and both are relatively easy and cost-effective.
The most significant difference between the two is that in MIG welding, a continuous wire electrode is used to create the arc, and when using a TIG weld, a non-consumable tungsten electrode is used.
In MIG welding, you will never have to worry about gas and shielding gas because MIG welding uses a wire that contains all the necessary ingredients needed for the weld.
TIG welding the wire is separate from the shielding gas, and you have to use a different gas cylinder.
TIG or Tungsten Inert Gas welding is one of the most revolutionary metal joining techniques used to join different metals.
It was mainly used in precision sheet metal work and instrumentation projects.
The welds that it produces are characterized by high tensile strength, low heat affected zone, and minimal heat-affected zone.
What is better for welding aluminum? TIG or MIG
With so many welding processes on the market, most of us have no idea what to use when tasked with welding aluminum.
For instance, you have MIG, TIG, stick, and flux core. Then you have all the different types of aluminum, and they all need slightly different types of welding to be done to them. (For instance, you don’t want to use MIG, stick, or flux core to weld aluminum.)
The best way to get the job done is to have the right equipment for the job.
If you are using a MIG welder, you’ll want to use an aluminum shielding gas. If you are using TIG, you’ll want to use aluminum wire.
TIG and MIG welding’s difference is that TIG welding uses a non-consumable electrode and MIG welding uses a consumable electrode.
The consumable electrode in MIG welding melts and provides the filler metal for the weld, while the non-consumable electrode in TIG welding doesn’t melt.
The TIG welding process is more accurate than the MIG welding process. If you are welding thinner metals, you should use TIG welding.
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