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How To Choose Between TIG Welding or MIG Welding for Welding Process?

Metal inert gas (MIG) and tungsten inert gas (TIG) welding have their advantages and disadvantages, but how do you pick the process that’s right for your next manufacturing or repair project?

MIG welding and TIG welding are the most popular methods known for their welding quality, production efficiency, and other advantages.

To effectively choose the better welding process for your project, you must understand the MIG vs TIG welding comparison. This article introduces the difference between MIG and TIG welding, their advantages, disadvantages, applications, and how you can choose the right method.

Difference Between MIG and TIG Welding

To effectively choose the better methods for your project, you need to know the TIG VS MIG welding difference. Here are the standard criteria for the MIG vs TIG comparison.

Differences MIG Welding TIG Welding
Power Source DC AC/DC
Metal Selection Work for all metals Suitable for all metals
Electrode Consumable electrodes Non-consumable electrodes
Gas Shielding CO2 Argon
Torch Water-cooled /Air-cooled Water-cooled/Air-cooled
Welding Quality Good Excellent
Speed Fast Slow
Cost Costly Costlier
Choosing between MIG welding and TIG welding can be a challenge. 
Advantages of TIG Welding Disadvantages of TIG Welding
TIG welding is precise and accurate
It delivers in terms of aesthetics
TIG welding is more environmentally friendly
It has better operational control
It uses non-consumable electrodes leading to lower maintenance and operational cost
TIG welding is costlier due to the slow process and filler materials.
It needs a clean surface
There is a need for an experienced operator
The welding process takes a longer time
Advantages and Disadvantages of TIG Welding
Advantages of MIG Welding Disadvantages of MIG Welding
The welding process takes a short time
It is less expensive than TIG welding
It is also accurate
It is automatic
Equipment is more accessible
It produces a clean weld
The welded joint is weaker
It is less reliable than TIG welding due to issues with electric arc stability
It is not environmentally friendly as it produces smoke and fumes
It can lead to the formation of rust
MIG welding can burn thin materials due to lesser operational control
Shielding gases requires the process to be indoor
There is a requirement for every metal to be welded.
Advantages and Disadvantages of MIG Welding

Applications of TIG Welding vs MIG Welding

MIG Welding Applications

Because MIG welding is easy to learn, relatively simple to perform and able to join materials such as aluminium, mild steel and stainless steel, it is suitable for a range of applications.

MIG is particularly effective for thicker metals and typically used where weld aesthetics are not a priority.

TIG Welding Applications

TIG welding is more difficult to learn, but offers more precise results than MIG welding. TIG is also better for joining thinner materials and can be used to weld aluminium, copper, steel, titanium and more.

As such, TIG welding is widely used jobs where precision is required, such as for aerospace, motorsport, industrial structures, production line manufacture, and more. 

Why MIG Welding Is Better than TIG Welding?

Many sheet metal fabricators assume that MIG welding is better than TIG welding. The reasons are not far-fetched. Below are a few you should know about it:

· Diversity

MIG welding is more diverse than TIG welding based on material compatibility and more on the use of consumable electrodes. The consumables function in producing the electric arc and act as a filler, making it ideal for combining two different metals.

· Speed

MIG welding is faster than TIG welding because the machine is automatic or semi-automatic. The MIG gun runs continuously, making it more efficient and productive than TIG welding, which focuses more on details.

· Ease

MIG welding does not require much technical expertise before handling when compared to TIG welding, which many welders consider as the epitome of welding. MIG welders can weld sheet metal parts with only one hand, while a TIG welder will require the hand and one foot to function well.

MIG Welding Machine Gun
What is the Difference Between Mig Welding and TIG Welding?

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