MIG VS TIG Welding: Which Offers Better Precision?

Introduction: MIG VS TIG Welding

We all have some memories of the past that we cherish forever. Some memories make us depressed, while others open up a series of events that make us euphoric for a while. Fortunately, I am a human, and like all humans, I have my share of memories. 

Let me take you through one of my memories. When I was in 7th grade, differences between two processes, substances, or discoveries used to frighten me the most. I remember when my science teacher told me to sort out the differences between plant and animal cells for the first time, I had severe stomach cramps and trouble sleeping that night. After that, whenever I was asked to make a difference between processes A and B, I felt tickled and overwhelmed. 

I know it is weird, but this is how I function. I don’t know if I was born like this or if I have conditioned my mind like this; it happens to me ALWAYS. 

And the same is happening to me right at this moment. This is because, in the next couple of paragraphs, I am expected to make a difference between the two most popular welding processes; TIG and MIG. I have recoupled my strength so that you will get something worthwhile about MIG VS TIG Welding! 

Make sure you fasten your seatbelts because I don’t want you to lose your balance as you fly in the sky of knowledge! Let’s kick start our air journey with the basic definitions of the two! 

MIG VS TIG Welding – Definition

MIG is a shorthand for Metal Inert Gas Welding. Since the process involves metals, it is also known as Gas Metal Arc Welding (GMAW). 

MIG welding encompasses automatic or semi-automatic arcs to generate welds. These welds utilize wire electrodes as the filler component and shielding gas to camouflage the welds from the attacks of atmospheric contamination, diminish weld bead porosity and boost weld penetration. 

Torches or welding guns are used in MIG welding to feed the shielding gas and electrodes. The shielding gas used in MIG welding comprises a mixture that contains 25 percent carbon dioxide and 75 percent inert argon gas. 

Let’s head toward the definition of TIG welding

TIG is a shorthand for Tungsten Inert Gas Welding. Since this welding mechanism utilizes electrodes made of non-consumable tungsten, it is also known as Gas Tungsten Arc Welding (GTAW). 

In TIG welding, welders use both hands simultaneously – one to take care of tungsten electrodes and the other one for taking care of the filler rod. Interestingly, this process involves shielding gas but not in a mixture form. It consumes 100 percent argon as a shielding gas. 

The major reason for not incorporating CO2 in the process is that tungsten and carbon dioxide will react to form tungsten oxides which lead to contamination of the weld and wearing of the electrode.

The foot pedal is one of the main components of TIG welding. It enables the welders to adjust amperage and heat during the process and permits them to take control of the heat brought up to the targeted metal. 

To this point, I have only mentioned the basic definitions of the two. Still, most of you have found out the differences between the two processes. 

It doesn’t matter if you can’t sort out the difference. We have sorted out those for you in the next couple of lines. Let’s first state the differences you have learned above in bullet form so that everyone would understand them easily! 

1 Shielding Gas 

MIG welding uses a mixture of 75 percent argon and 25 percent carbon dioxide as a shielding gas, whereas TIG welding uses 100 percent pure argon as a shielding gas. Got the basic difference? Let’s run to the next! 

2 Electrodes 

MIG welding uses consumable wire electrodes with a filler material in them, whereas TIG welding uses a non-consumable tungsten electrode and a separate filler material. 

3 Foot Pedal 

MIG welding doesn’t involve the direct use of a foot pedal, whereas a foot pedal is one of the main components of TIG welding. 

Now that we have comprehended the fundamental differences between the two. Let’s quickly run through some minor differences so that we could do some justice to this topic – MIG vs. TIG Welding! 

Other Minor Differences Between TIG and MIG Welding

In the upcoming text, I will enlist some minor differences between the two so that you could decide which welding process will suit your requirements! 

1 Rate of the Process 

MIG welding is faster in comparison to TIG welding. In lesser time, MIG welding can manufacture a variety for consumers. Production time for TIG welding is greater than the former. This is why MIG welding costs you less than TIG welding. 

2 Training Period 

TIG welding is harder to comprehend in comparison to MIG welding. Beginners are expected to devote more time to learn the basics of TIG welding. Years of devotion and focus are needed to become an expert in TIG welding. 

Comparatively, MIG welding is simple and can be learned within a few months, especially when you devote proper time to the process. 

3 Quality of Products 

Manufacturers and leading brands always prioritize quality over quantity. While MIG welding delivers you a faster production rate, lesser time, and cheap rates, the quality is not up to the mark. 

TIG welding is hard to learn, has a slower production rate, and is pricey, but the quality is seamless, precise, aesthetic, and reliable. TIG welds look pleasing to the eyes. 

4 Working Range 

MIG welds are prioritized where the aesthetics of welds matter less. MIG welding mostly combines thick metals like aluminum, stainless steel, and mild steel. 

Since TIG welding provides more precision and accuracy, it is used to combine thinner substances like titanium, copper, steel, etc. TIG welds are used in crucial industries like motorsport, aerospace, etc. 

Final Statement 

Welding has more than 50 different types. All kinds have different requirements, production rates, production times, and applications. Despite having strong opposition to sorting out differences, I have made an effort to give you a comprehensive outlook of MIG VS TIG welding.  Join us for more updates and the latest developments in the welding world! 

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