The MIG welding is a semi-automatic arc welding process that is performed with gas. In MIG, an inert gas is used when welding metallic materials such as aluminium or galvanized steels.
It is characterized by the various possibilities of use depending on the material, degree of mechanization and welding position. Keep in mind that this type of assembly is a clean and environmentally friendly method.
MIG welding is much more productive than MMA welding; where productivity is lost, it must stop changing the consumed electrode. Furthermore, this type of welding machine, due to solid wires and tubular wires, has increased its efficiency from 80 to 95%. In this way, carrying out welding work with this equipment is very versatile since it deposits the metal quickly and in different positions.
Also, it is commonly used in thin and medium thicknesses, steel fabrications and aluminium fusion structures.
This procedure is the most used in auto body shops to fix vehicle components that require welding as a fixing system.
What Are The Advantages Of The MIG Welding:
This type of welding machine has more advantages than disadvantages. Take a look below:
- Positions when welding: as with TIG welders, these will not give any problem when doing an assembly job in any position.
- Expected results: carefully observing the work after finishing it will help you realize the finish quality. You can get a lot with so little.
- High Productivity: Its high deposition rate increases productivity.
- Different degrees of thicknesses: tasks can be carried out in thicknesses between 0.7 and 6mm, without the need to prepare the edges.
- It does not emit pollution agents: it achieves a reduced emission of polluting or toxic gases into the atmosphere.
- Work comfort: this depends on the welder’s skills, as the process can become automatic or semi-automatic, achieving good results without applying much effort.
- Excellent production and quality: degradation of quantities of metal can be achieved (even up to 3 times than with other procedures).
- Create No Slag: It does not generate slag, which makes the welds look good.
- Projections: Fewer projections in the weld, except in the case of some cored wires.
What Are The Disadvantages Of MIG Welding:
Not everything could be good; it also has disadvantages to consider before selecting this welding equipment; check them:
- High cost: Besides its way of operating, it is simple, the price of the equipment can be pretty high. This means that it will be difficult for you to acquire it if you manage a limited budget.
- Cooling: its cooling system is faster than other working methods.
- The difficulty of use in delicate places: most welders do not always recommend it for working in places that are difficult to access.
- Require Gas: Need to have a gas supply contract. Specific portable equipment does not have the possibility of gas welding.
It is essential before starting to work with the MIG welder, carefully read all the instructions so that you know in advance the precautions, the appropriate gas, type of wire, among other relevant information; all this, to avoid any problems.