Aluminum Welding Techniques
If your project requires aluminum welding, then the following post is just for you. This is less energy-intensive and easier than working with steel; however, there is some difficulty in using the equipment that is calibrated for steel when working with aluminum, so make sure you consult the documentation for your welding apparatus before you try to weld aluminum. Several primary methods can be used to join aluminum via welding, which includes mig, tig, or using a stick electrode.
Mig Welding Aluminum
Mig welding, or gas metal arc welding as it is also referred to, is a process that requires some post-weld touchups in order to achieve a more presentable finish. Mig welding will use an electrode of continually fed wire to form the base of the welds, which are also shielded by an inert gas or gas mixture. When used to weld aluminum, this method is considered somewhat messy as you will need to use the spray transfer method which the arc creates a spray of tiny metal beads. With practice, this method can become more controllable.
Tig Welding Aluminum
This is also known as gas tungsten arc welding and is a process that does not require as much post-weld clean-up and finishing, which makes it ideal for quick and easy weldings of aluminum. Rather than using the aforementioned fed-wire electrode, this method uses a permanent tungsten electrode that will not be consumed by the welding process. You will need to add filler metal manually, making this process best suited to joints that are created without needing any additional metal. As with mig welding, inert gas will be used to shield the arc.
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