MIG and TIG can join aluminum, but both undergo a unique process. While DC can be used for MIG, AC is required for the TIG process when working with this material.
AC TIG is the only option if you need a high-quality joint or need to weld metal frequently. The quality of MIG welded is, nevertheless, perfect enough for most uses.
The shorter learning curve of MIG is a significant selling point for the process, attracting novice welders. The ability to carry out AC TIG on aluminium is in high demand.
Difference Between TIG and MIG Aluminum Welding
TIG and MIG welding are both arc welding processes. The key differences between the two are the following:
Gas Tungsten Arc (GTAW)
It is the standard technique. Tungsten-inert-gas is a synonym for this technique. This method avoids the difficulties associated with mechanical wire feeding. The filler material is fed into the puddle by hand using this technique. The method’s innovative and clean weld is one of its main selling points. Additionally, this helps keep the air in the workplace clean.
TIG uses a tungsten electrode that is non-consumable, meaning it does not melt and become part of the weld. Instead, a separate metal filler is used to create the weld. This allows for very precise control of the weld, but it also requires a higher level of skill from the welder.
With this process of combining, the wire electrode is constantly fed from the bottom of the weld. This method is a gas combination that creates a barrier over the wire to stop it from absorbing hydrogen. Unfortunately, the spray transfer method typically leaves a mess in the form of tiny metal beads.
MIG uses a continuously fed wire as the welding electrode. The wire is melted and becomes part of the weld. This makes the process easier and faster than TIG welding, but it also results in less precise control of the weld.
TIG is commonly used for welding aluminum in the aerospace and automotive industries, as well as for welding aluminum frames and structures.
MIG on the other hand is generally considered to be better suited for thicker materials and higher welding speeds. It is commonly used for welding aluminum in the construction, manufacturing, and transportation industries.
Aluminum is chemically and mechanically different from typical materials like steel, making it difficult to weld.
Keeping a few things in mind is essential when playing with this material. There are many factors to think about, including:
- Selecting an appropriate substitute.
- Keeping it in storage.
- Purification of the underlying substance.
- Use of the proper methods is a must.
Whether TIG or MIG, it is important to consider all of these factors when welding aluminum in order to achieve the strongest and most reliable welds. The choice of which process to use will depend on the specific requirements of the welding project.