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What are the Difference Between Mig and Tig Welding

Mig and Tig Welding are two standard welding techniques used for welding metal? However, there is a significant difference between mig and tig welding methods. This blog will break down the features of each welding process, highlight the benefits and drawbacks of each and clarify which one would be best for your specific project.

What is MIG welding?

Mig welding is a type of welding that uses direct current (DC) to interact with the steel. It means the welds created are much stronger than those made using other welding processes. DC Welding also has a lower heat requirement, making it ideal for welding in confined spaces such as on vessels and tanks. What is tig welding? Tig welding uses arc welders and ultraviolet light (UV) to weld steel. The advantage of UV radiation is that it helps prevent deformation or warping of the metal during the welding process; this makes tig Welding more tolerant to environmental conditions, such as rain or snow.

What are the benefits of MIG welding?

Mig welding is a fast, affordable, and easy process ideal for close quarters and small areas. Mig welders can work quickly and efficiently to create a seam in less time than other welders. The process also has the least potential for heat distortion, making it an optimal choice for delicate or sensitive materials. Mig welding is less likely to cause heat distortion than other types of welding because Mig rods are self-heating. 

It means that when you initiate the Weld arc, the energy from your torch melts the rod automatically at just the right moment, so there’s no need to adjust your torch’s temperature constantly. Another reason mig welding tends to be less prone to distortion is that Mig rods can withstand higher temperatures before emitting sparks, which cause instability in the molten metal.

What is needed for MIG welding

You will need an oxy-acetylene torch with a filler rod for MIG welding. It is the same type of tool used for oxyfuel welding. You will also need shielding MIG welding gas and a flux core welding MIG wire. You will need the torch and flux core wire for the miller MIG welder. The steel to be welded must be prepped with a slag coating to prevent corrosion during Welding.

What is tig welding?

Tig welding is a type of welding that uses a lower temp than MIG welding. Tig means “tiger” in Spanish, and this welders technique derives its name from the fact that tig welds are very hot. Mig Welding is a type of welding that uses a higher temp than tig welding. Mig means “migratory bird” in Spanish, and this welders technique derives its name from the fact that Migs can achieve great penetration depths with their welder Tig wire by using high temperatures. 

Miller tig welder is the most common type because it can quickly join two pieces of metal at different angles without warping them or creating gaps in the joint. When you use mig or tig Welding to attach pieces of steel, heat both sides of the rail until they reach a liquid-like state (known as flux) where they will stick together permanently due to strong hydrogen bonding between iron atoms.

What are the benefits of Tig welding?

Tig welding is a type that uses higher heat levels and is better for more challenging welds. Tig welders often use more giant torches and aggressive techniques to create stronger connections between pieces of metal. The benefits of Tig welding include

  1. Increased Strength: Tig welders can create stronger connections between pieces of metal due to the increased heat level and aggressive technique used in welding tig. It increases the strength of the joint, making it perfect for more challenging projects where extra durability is required.
  1. Quicker Welding Time: Tig welded joints are typically completed faster than those created using a welder mig because less filler material is needed; this reduces downtime and allows you to move on to another task more quickly.
  1. Better Bonding Properties: Tig welding has been shown to produce a better bond between metals due to its intense heat and pressure, which leads to a more complex surface resulting in less corrosion over time.

What needs for tig welding

It's common practice to connect metals using the tig welding technique to learn how to tig weld. A wide variety of industries rely on it since the welds are sturdy and resistant to corrosion. Tig welding may be used for various purposes, including those listed below.

  • Welding is used to uniting otherwise difficult-to-put-together metals with tig welding wire
  • Putting together substantial metal sections
  • Achieving complicated forms with a bit of welding
  • Fixing or replacing major components on huge items
  • Creating elaborate designs by weaving metals
  • Drawing parallels between several topics

Why use either type of welding?

There are two primary forms of welding: resistance and arc. Most welders are familiar with resistance welding, in which metal components are welded together by applying heat. Fixing little things like pipelines and tanks is an everyday use of this method. Arrow-shaped electrodes are fed into the joint to weld, and a current is passed between the electrodes and the metal. As a result, the metal's atoms can split apart and create a new link. The metal will be welded together if this procedure is performed enough times.

Compared to resistance welding, arc welding is more complex, but it has more applications. More vital junctions may be made by melting dissimilar metals together using a greater voltage and temperature than resistance welding. The use of arc welding is not limited to smaller items; it may be used for structures as big as automobiles.

Differences between mig and tig welding

The electric arc in MIG welding creates a molten pool. This welding technique is the most used in the industrial sector. Since it employs a unique electrode, tig welding generates more heat and produces stronger welds than MIG welding. Tig welds are also more flexible since they may attach parts significantly dissimilar in size and form to one another.

To connect two pieces of metal, MIG welders employ an electric arc. Tig welders don't need an electric arc since the electrode melts the metals together. The greater flexibility of tig weldings makes them ideal for joining parts of varying shapes and sizes.

The pros and cons of each type of welding

Many industries rely heavily on welding, and there are many techniques from which to select. In this post, we'll compare and contrast two typical types of welding: MIG and tig.

Since it can be used on various materials with little training, Mig welding has gained widespread popularity. Even so, MIG welds are sturdy than tig welds. Thus they should be used in something other than demanding situations. The connections created by tig welding are stronger than those created by how MIG welds, but tig welding is more complex. Both approaches have benefits and drawbacks, so choose the one that best fits your requirements.

Which one to choose for your project

There are a few factors to consider while deciding which welder to use. You must identify the substrate type before proceeding. Which is superior, aluminum, brass, or stainless steel? Copper? The next step is to settle on a welding technique, such as arc, MIG/TIG, or resistance welding. Finally, it's important to choose the right welder for the project.

All these things matter if you want your welding to turn out smoothly and reliably every time. Whether you're just starting or upgrading your welding equipment, it's important to consider the considerations above.

What needs to consider in selecting the perfect welding

Before settling on a particular welding technique for your project, several factors should be considered. You should first check that the welding method you choose is appropriate for the material you want to weld. The second step is to choose a welder capable of performing the necessary weld type (arc or gas). Third, think about the limitations of both your welder and the specifications of your project (dimensions, shapes, etc.). Last but not least, test your selected welding method on a large scale to guarantee accuracy and dependability before using it on a smaller scale. If you keep these considerations in mind, choosing the best welding method will be a breeze.


After reading this article, I hope you've better understood mig vs tig welding. If not, be sure to check out our glossary for more information. As you can see, these processes have a lot of similarities, but some essential differences should be considered before deciding which is suitable for your project. Thanks for reading.

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