Compared with steel, aluminium poses certain challenges to a welder. First of all aluminium is a lot better as a conductor than steel and a lower melting point. This might result in burn troughs if you familiar with working with the metal or if you are so used to steel. The fact that feeder wired for aluminium welding is also a lot softer than the on used in steel welding also poses another problem since there is a chance that it can get tangled in the feeder. There are many types of welders that can be used for working on aluminium and picking the right one depends on the skill of the welder and the kind of job that is to be performed.
What type of welder for aluminium is best used? There is no single answer here, as I have mentioned, it depends. To help you in deciding, here are some of the welder types that can be used for aluminium:
TIG Welding- TIG or tungsten inert gas welding is the most common form of welder used for working on aluminium. This uses an inert gas in order to shield the area that is being worked on. One of the most useful qualities of this type of welder is the precise control that ensures that the metal piece is not going to overheat.
MIG Welding- This form of welding can also be used for working on aluminium. Argon is the best shielding gas to be used when working with a metal like aluminium.
Torch Welding- Torch welding has been known to be utilized for welding aluminium but it is a very difficult procedure that requires a high level of skill to be successful. Overheating and burning through the material is quite common in this method which offers very low levels of control.
No matter what type of welder it is that you use, the most important thing when working with aluminium is that the piece should be absolutely clean and free from any dirt or debris that might cause some problems. You can use a chemical method in cleaning aluminium or you can use a wire brush to clean it mechanically. You have to make sure that you remove pieces of aluminium oxide on the surface or that might get included in the weld which can weaken it considerably.
These are just the things that you need to know when looking for what type of welder for aluminum should be used.