Welding is an industry in which professionals make various things involving metal. It’s also an industry that artists are involved in. Home projects aren’t only about woodshop.
Welding has become pretty useful for these individuals for handling fixtures around the house or just for making artistic pieces through welding.
However, if you do want to become a professional welder, then you’ll definitely need to know the different types of welding and what they are used for.
Each type has a significant role in society, and going through deep research and training will become handy for you.
9 Different Types of Welding Processes – What Are They Used for?
Below we’ll be discussing 9 different types of welding processes. These are some of the most popular kinds of welding types. Their descriptions, how they work, and what they are used for is given below:
1. Stick Welding
Stick welding is also known as Shielded Metal Arc Welding (SMAW) sometimes. This is the most basic type of welding process. It is also the easiest, cheapest, and most popular type in terms of usage rate and availability of the equipment.
Moreover, stick welding is so common that you will find it being done by all types of people in all types of places. It doesn’t have to be done only on construction sites. Garages, institutions, farms, etc., are some places stick welding is easily done.
When you’re dealing with stick welding, you’ll see that there are electrodes, a power source, clamps, etc., among the various equipment for stick. The electrodes are commonly known as rods.
These rods have a coating of flux on them, which releases a type of gas shield around the rod to protect it from contaminants. The core material the rods are made of is metal that will match the material they’ll be welding.
There’s a machine that is the power source for the welding tools. It pumps out electricity into the rods. There are clamps to hold the machine in place as the electricity surges through.
The rods will then heat up and melt the metal pieces they’re trying to weld together. Furthermore, stick is commonly used for welding steel plates, beams, stainless steel, iron, nickel, etc.
Since the stick process is very portable and has strong wind resistance, that means it’s an excellent welding type to use for welding exterior structures of buildings or architectural pieces.
2. MIG Welding
The MIG welding is an abbreviation for Metal Inert Gas. It’s also known as Gas Metal Arc Welding (GMAW) sometimes. This is also a pretty common and popular welding type.
It’s easy to catch up on how this kind of welding works, and it can also be used in various fields. You can do MIG welding manually with your hands as you hold out the welding tools and weld on the metal pieces.
Also, you can do it automatically with the help of robots. All you need to do is mount the welding equipment onto a robot. Automatic welding is much faster than manual, and it even gives consistent results with more precision.
The MIG equipment includes a welding gun. This gun has a wire fed through it and creates a gas shield around the wire. The shield gets released when the power source is activated.
The welding gun can easily be held in your hand and even has a trigger you can pull when you want to weld. Once you pull the trigger, the power source gets activated immediately. The wire releases the gas shield, and all you need to do is point this gun in the place you want to weld.
Moreover, this gun is pretty light and easy to hold onto when welding. You could probably keep going for hours if the wire spool wasn’t so short-lived.
The wire spool is limited and will run out after a while of welding. Another problem is when the gas tank providing power for the welding gun will empty out.
3. TIG Welding
The TIG welding is an abbreviation for Tungsten Inert Gas. It’s also sometimes known as the Gas Tungsten Arc Welding (GTAW). The TIG process is a very neat and clean type of welding technique.
It can be versatile and used in many fields and projects. This type of welding is quite difficult to master. The welding tool here consists of a tungsten electrode that produces the melt pool.
Electricity needs to be provided to this tungsten electrode, and then an inanimate gas will be produced and will surround the electrode. Then you can use the electrode for welding.
TIG welders are more suitable for metals like stainless steel, titanium, aluminum, etc. Some common fields the TIG welding type is used is in areas involving piping systems, vehicle repairs, aeronautical, etc.
4. Resistance Seam
The resistance seam welding type includes the use of electrodes made of copper. These welders help make continuous welds without interruptions.
The electrodes don’t look like long rods, though. They actually resemble round wheels. These wheel-like structures will roll all across and around the material when you’re welding.
Heat and pressure are applied when the wheels run on the metal surface. The power source for the welders in resistance seam welding is electricity. This kind of welding type is useful for making ducts in the metal.
5. Atomic Hydrogen
Atomic hydrogen type used to be popular until the MIG welding techniques have been invented. There are still some specific areas that need atomic hydrogen welding techniques.
For example, it can weld metal material like tungsten. Here the electrodes themselves are made of tungsten metal. The electrodes are placed in a hydrogen atmosphere so that the hydrogen in the air can break up into a molecular level to create an explosion.
This explosion created enough heat to allow the welding tools to melt the material.
6. Submerged Arc
In the submerged arc welding technique, there is a tube that has a wire spool used as an electrode and filler material. Flux powder is placed on the welding area through the tube.
The submerged welding is done automatically with a machine after you make the adjustments. It’s useful to weld materials like shipping parts or metal pipes underwater.
7. Flux Cored Arc Welding (FCAW)
The FCAW is a bit like the MIG welding type. It needs a long-term supply of power fed to the electrodes. But here, instead of solid wires, there is a tube-shaped wire that is full of flux.
When the electrode has higher efficiency, then it can produce less waste when welding. You don’t even need a shielding gas to protect the electrodes here, yet it’s still great for exterior projects or tasks.
However, the welders create a big mess with debris, slag, and dusty smoke. The equipment required for the flux-cored arc welding is very expensive too. It can only be used to weld hard metal materials. But the welding techniques for this type is easy to learn.
8. Plasma Arc
The plasma arc type is similar to the TIG welding type. This technique uses electricity as a power source. The electricity surges through a small nozzle that works like a thin torch.
A gas shield is then produced so that you can have accuracy when welding. It’s a very handy process when you’re dealing with a base metal that’ll only melt at high temperatures.
The plasma arc tools can produce heat very quickly and can reach temperatures up to 50,000 degrees Fahrenheit. Aircraft manufacturing is a place where plasma arc welding is used a lot.
9. Electron Beam
Electron beam is a welding technique where you have to fire a ray of electrons on the material you’ll weld. These electrons have high velocity when they’re shot.
To prepare the welders, energy is transformed from these electrons and turned into sheets so that they can mix and then melt the material. What distinguishes this type from others is that it allows metals of different properties to weld together.
Different temperatures and weights don’t disrupt the welding. Fields like aircraft engine manufacturing, aerospace parts manufacturing, etc., use this sort of welding.