Welding is the process by which metal is joined together. There are a lot of different welding techniques, each with its own pros and cons. The fusion of materials with heat, melted metal, and pressure can be incredibly destructive and can only be done by a trained professional.
Two of the most common welding techniques are MIG (metal inert gas) and TIG (tungsten inert gas) welding. This blog post compares the two main types of welding, outlining what they entail, their benefits and drawbacks, the materials used, and typical industrial applications.
Types of Welding Methods
Different techniques and technologies have been developed to optimize the welding process for various materials and products. This includes:
- Arc welding is the process of melting metal by heating it with the arc, or electric arc, of an electric arc welding (EAW) machine. This electric arc produces a current that runs through electrodes to create an electric arc within a thin metal wire. The wire is then pushed through a welding torch, where it is melted and fused to a workpiece. The color of the weld depends on the type of metal being welded and the process used. The metal’s color depends on the type of metal, the welding process, and the temperature of the weld. Different types of arc welding contain metal inert gas (MIG) welding and tungsten inert gas (TIG) welding, among others. Check out the cost of welding gas.
- Electron beam welding is an efficient, flexible and precise welding process. It is particularly useful in joining materials that can not be welded by conventional methods. Electron beam welding offers significant opportunities for new applications, where conventional welding methods fail. Electron beam welding is currently used as a filler process in welding dissimilar metals, such as welding steel to aluminium. Welding metals together by electron beam welding is relatively simple. The welding process takes place in a vacuum, where only cold electrons from the source are used to generate high kinetic energy electrons. These high energy electrons, with a mass much less than the electron mass, are accelerated to very high velocities within a controlled magnetic field. The electron beam, therefore, generates heat, which melts the metals, and this produces continuous welds.
- Laser welding is a streamlined welding process that uses focused light to form weld joints. This process works by using a focused beam of light to weld materials together. The laser heats the material to a temperature that melts it, which is then joined to another material.
- Resistance welding is a very simple welding process that requires a simple machine. The metal being welded is placed in a welding position, and a welding gun with an electric arc is used to weld it. But there’s so much more to resistance welding than meets the eye, including the fact that there are different types of resistance welding, and that different types of metal can be used for welding.
MIG vs. TIG: Which One Is the Best for Your Application?
The acronym MIG stands for Metal Inert Gas Welding, and TIG stands for Tungsten Inert Gas Welding. Though both processes use welding guns, their basic function and purpose are entirely different. MIG welding uses a thin wire, and TIG welding uses an electrode. MIG welding needs only heat and pressure to melt the material, while TIG welding needs heat, pressure, and electric current to complete the weld.
TIG Welding: Benefits and Applications
Compared to other types of welding, TIG welding often requires less heat, which results in fewer burns and burns to the welder. TIG welding is also more versatile than other types of welding because it can be used for aluminum, mild steel, stainless steel, and carbon steel.
TIG welding (or stick welding) is a form of gas tungsten arc welding (GTAW), which is the most common welding process in use today. The arc, created by an electrode and a tungsten electrode, provides the heat that melts metal.
TIG welding is often used in welding thin sheets of metal, where a torch and filler rod cannot be used, or for welding stainless steel or aluminum. TIG welding has been used for brazing, a technique for joining metals that don’t require extensive heat input. Check out the best Miller’s TIG Welders.
MIG Welding: Benefits and Applications
MIG welding (or metal inert gas) is a type of fusion welding that uses a filler metal and inert gas to produce the weld. MIG welding is mostly used in manufacturing, especially for thin metals, and its versatility makes it an ideal process. Its drawbacks include lower heat output, longer weld time, and higher gas consumption. That said, it is still a widely used welding process for a wide range of applications.
Typical Materials Used in MIG and TIG Welding Operations
Welding is a manufacturing technique that uses high heat to join two metal pieces together. This process can be used to repair existing metal structures, such as in-car manufacturing or building construction. It can also be used to create or repair sheet metal parts.
Welding is one of the most common manufacturing techniques, and there are many different types of welding, including MIG, TIG, gas metal arc, submerged arc, flux-cored arc, flux-cored wire, and orbital welding. MIG welding is used for thick materials and TIG is more suitable for thin materials.