It is a known fact that aluminum is used for a variety of purposes and therefore the need for aluminum welding is quite steady and regular. However, to ensure that the safest and most efficient methods of welding are used, it is important to have a good knowledge about the various ways and means of welding aluminum. While experienced people will not have any problem when it comes to welding of aluminum it is only with fresh hands that a lot of information and knowledge would be necessary. Practical knowledge and having a look at the different welding techniques could also help a lot. Let us over the next few lines try and find out some useful tips which could be very valuable even for experienced welders.
First and foremost it is important to understand the importance of pre-heating when it comes to aluminum welding. Directly welding on a cold aluminum sheet could distort and damage the entire welding process. Hence it is always preferable to go in for slight heating before going in for such welding. This is call treating the metal before welding is done. Such pre-heating may not remove distortion totally, but will help it to remain within manageable limits. The next important thing that should be kept in mind is the need to move quickly when you are welding aluminum. You have to bear in mind that aluminum melts at much lower temperature and hence keeping the welding torch at one place for long period of time could over-weld the spot which could become problematic.
Another important point when it comes to aluminum welding is the need to ensure that the joining process is done properly. We have to bear in mind that unlike steel and other metals, where bits of pieces could be inserted in the joints and then welded, the same is not possible as far as welding aluminum is concerned. Unless the pieces are fitted together as tightly as possible, you could end up having gaps between the joints.
The next important thing is to choose the right type of aluminum welding depending on your specific needs and requirements. For example, TIG welding is extremely useful if you are keen on ensuring smoother surface finishes. On the other hand it is common to use MIG welding when you are looking at welding thicker pieces of aluminum. Hence all these requirements have to be kept in mind when going in for welding of aluminum.