Many welding projects that you do may call for different kinds of metals or even plastics, depending on the job that you are doing. Any type of metal can be welded together with the right kind of welder and the proper level of experience so that the job is done right. No matter what kind of welding that you do, however, some metals require more knowledge than others, and usually because of the kind of welder that you have to use. Aluminium welders are typically used by professionals or other tradesmen (or women) that have the experience that it requires to ensure that they are being used properly. Most welders that are used for aluminium are those that require the additional experience that welding other materials may not. Although aluminium welding can be done at home, it is important that you learn the proper techniques beforehand and practice careful safety precautions to prevent serious injury no matter what kind of welder that you use.
The easiest types of aluminium to weld are commercial grade aluminium and non-heat treatable alloy. Heat treatable alloy can be welded but is a little bit harder of a task. The most common types of aluminium welders are those that use alternating current, such as TIG welders and MIG welders for those individuals that are aware of what they are doing when it comes to welding other kinds of metal. MIG welding often requires a little touch up work after the weld is finished and the actual welding process is considered to be a messy job. In most cases, using a MIG welder should be left to professionals or those that are more experienced because of the high heat and the low melting point of aluminium. In order to not melt holes in the aluminium it is important to be quick about the welding and this is not always possible when you are a beginner. Quick work can be made of aluminium welding when the aluminium welder that is used is a TIG welder, which makes clean up and polishing not necessary, but this option is best suited to joints where the weld does not need extra filler metal in order to work. Using a TIG welder gives you greater control over the process no matter how proficient you are, but may take longer than other aluminium welders.
One of the most important things to remember when using any kind of welder is that safety comes first. Before, during and after a welding job there are important steps that should not be skipped. Protective gear should be put on before you start and you should be sure that the work environment is clear of debris or other hazards that could lead to accidents, including the aluminium itself. Making sure that it is free of oils and loose debris will ensure that the welder does not slip or throw the debris during the welding process. Before you start using aluminium welders it is important to get rid of the aluminium oxide that forms on the top of the aluminium when it is exposed to air. This layer can make the welding harder to accomplish due to the high heat resistance that it offers. Any of the aluminium welders that you might use for welding will have a difficult time getting through the layer of aluminium oxide in order to complete the weld. After you have finished the weld, it is important to clear the work area so that future accidents are less likely to occur. If the work area is clean before you begin welding (or after you are finished) the next time you need a "quick" welding job done you will not have to worry about accidents that could have been prevented.
As with many kinds of welders, aluminium welders require a certain amount of training and skill, and always proper safety equipment. If you think that you are ready for aluminium welding, the easiest way to check is to try it out. Practicing on scrap aluminium so that you are not wasting good material or ruining a job is the best way to make sure that you know exactly what you are doing when you need to. The task of using any kind of welder is difficult mostly because of the quickness with which aluminium melts and the fact that there is no warning unless you are aware of what you are looking for. An experienced aluminium welder knows what to look for when the telltale redness of heat is not present. So even though aluminium welding is easier than steel welding for some, using aluminium welders still requires caution and preparation.