Last Updated on January 8, 2022 by Luis Ferency
Have you ever welded any two metals together? Do you have a welding machine? Does it seem easy to you? Well, if you have no idea about MIG Welding guide, you can read this guide; for sure, it will deliver you detailed information so you can weld conveniently and straightforwardly.
Actually, it is a process of using the wires and heat to adhere to the gap of two metals; MIG welding is the most famous welding form due to its safe, easier, and appropriate procedures; you can create many useful things by using MIG.
To enjoy the real benefits of MIG Welding you need to know its procedure, setting, and strips; due to this reason, you will be able to save you labor cost, perform your work more reliably, and even complete faster.
So, read our MIG Welding guide to biome welding master. ready?
Let’s proceed on!
Table of Contents
MIG Welding guide
What is MIG Welding?
MIG (Metal Inert Gas) is also known as GMAW (Gas Metal Arc Welding) is a very known type of welding that is used to weld alloy steel and is best suited for home repair projects and welding auto body parts. To create a short circuit between a cathode, and a continuously fed anode (+ the wire-feed welding torch) MIG welding uses an arc of electricity. This process was developed in the early 1940s and general principles today are still the same.
Our MIG welding guide will help you to know what this process actually is.
What is the MIG Process?
This is actually an arc welding process that joins metals together. The metal joined with each other when heated via an electric arc created between the workpiece, and a wire electrode. A MIG gun is used to feed the wire electrode. The gun is connected to a welder and is consumed in the molten weld pool. MIG gun also releases a shielding gas which protects the arc and welds puddles from the external environment.
Read it: What’s the Best Gas for MIG Welding
How does the MIG Welder Work?
In this MIG welding guide, we are now going to discuss how the MIG welder works.
You will see a spool of wires and a series of rollers inside the welder that pushes the wire from the welding torch. There is nothing much to know about this part, just have a quick look. If the wire feds jam up for any certain reason, then you have to thoroughly check this part of the machine. A welder which has an internal feed assy is known as a compact MIG welder. Use a tension nut to handle the large spool of wire. Keep the nut tight, so the spool is away from unraveling like a bird’s nest, but not so tight that rollers are unable to pull the wire from the spool.
The Gas Supply
You have to use welding gas so the weld pool will remain safe from the atmosphere. Mostly there is a gas cylinder behind the MIG welder. The gas may be a mixture of CO2, and Argon, or 100% Argon. This gas provides a shield to the weld as without gas the welds look splattered, brown, and the welds will not be nice.
Open the main valve, and check if there is any gas in the cylinder. The regulator should be working between 15, and 125 PSI and gauges should be between 0 to 2500PSIin the tank, depending on the type of welding torch you are using. When you are going to do welding in areas having a drought, always run more gas pressure to stay safe from porosity in the weld.
Keep in Mind: Porosity means getting holes in the weld, it makes the weld weeks, and not be strong enough to hold metal tightly. so, try to avoid it as much as you can.
The Welding Torch
The welding torch consists of a trigger that controls the flow of electricity and the wire feed. A wire is guided by the replaceable copper tip which is used for each specific welder. tips are available in different sizes, now it is up to your welding task which decides which diameter of wire you need. Mostly this part of a welder is set up all ready for you. Metal should be there to cover the metal tip and protect the electrode and direct the flow of gas out the tip of the torch.
The Earth Clamp
This is basically the cathode (-) in the circuit and it completes the welding torch, circuit, and the project. It should be clipped together onto a metal welding table, or directly to the piece of metal being welded. The piece you are going to weld should have good contact with the Earth clamp. so make sure to clean it from any rust, or paint which prevents it from making a great connection with the welding work.
What are MIG Welding Techniques?
Now the machine is fully organized to start the MIG welding process, but before starting the work, get to know that there are many variables including the type of joint, position of the joint, thickness of metal, the movement of the MIG gun, and gravity also plays a part. In this part of our MIG welding guide, we are going to cover torch movements.
Why are Torch Movements Essential?
MIG welding is not simply pushing welders in a straight line, you will experience different movements which suit best with the type of metal being used, and joints.
This is the commonly used technique in which we push our welder in a forehand position. To be at the right position, hold the at an angle of 10 degrees with the electrode pointing towards the direction in which you are going to weld. Decreasing the angle will change the shape of the weld bead.
Once you set the position, now push the trigger, and move the gun slowly towards the direction of the weld. You will get a clear view of the weld joint through this position. Keep in mind that the electrode is pointing forward at the leading edge of the weld when using this position.
You use a backhand position When you pull the weld backward towards your body. again use the same angle of 10 degrees, and keep the electrode at the edge of the weld puddle. You will get more penetration with this position than when you’re pushing as the weld bead builds up. We suggest using the pus technique whenever possible.
The Bottom Line
If you have no idea how to use a MIG welding machine or how it can help you, you can read our MIG welding guide; yes, this guide will prove very beneficial for you.
In addition, it will save you from mishaps, poor results, and risks; so undergo the article and have safe welding results.
Go and create what you like, you have a lot of ways to show your creativity by making doors, chairs, tables, and anything you want.
Terje Chuck from Dallas, TX has welding experience of 30+ years. He believes in providing quality metal products while keeping the work environment safe and clean. He is one of our biggest resources that is skilled at interpreting blueprints to assemble them in a structure as per specifications.