Aluminum Welding Wire is used to create a high quality weld on aluminum. Welding Aluminum is very different from welding steels and requires a little more skill. However, following a few rules of thumb and having a good welding machine will help the aluminum welder to produce quality welds. This article will offer some tips and recommendations for selecting the correct aluminum wire, preparing the base material, and applying proper welding technique to achieve high-quality gas metal arc welds.
A good rule of thumb for choosing the correct aluminum welding wire is to consider the thickness of the material you are working with. Thicker materials require a larger wire diameter to ensure proper penetration and weld fusion.
It is also important to select the correct wire type based on the joint design and required weld strength. There are several types of aluminum welding wires available, each designed for specific types of joints and weld strengths. Some aluminum welding wires are also better suited for certain welding applications, such as butt or fillet welds.
Because of the softness of aluminum it is difficult to push through a standard MIG welding gun (some people use a longer cable but it is still challenging). For this reason many fabricators, trailer and boat builders, maintenance professionals and DIY'ers choose to buy a Spool Gun for their aluminum welding needs. The spool gun holds the aluminum wire in a spool and eliminates birdnesting (the process where the welding wire jams inside of your welding torch). The spool gun also allows you to use longer cables (15 ft to 50 ft) which helps reduce the amount of time you have to spend changing out spools.
The first step in welding aluminum is to clean the area where you will be working. This will remove any dirt, grease, and oxides that may contaminate the weld. It is also important to not wet the surface of the metal before welding. Water will distort the weld and can cause weak spots in the weld.
Before you start welding aluminum, it is a good idea to preheat the base material. This will increase the strength of the weld and help avoid cracking at the ends of the weld. For this reason it is recommended to preheat the material from five hundred degrees Fahrenheit to seven hundred degrees Fahrenheit.
When you are ready to begin welding, it is important to maintain a consistent travel speed and torch angle. This will ensure that you are creating a molten pool of weld and not just burning holes into the metal. When you are done welding make sure to fill in any craters that have formed at the end of your weld. This will reduce the chances of a crater cracking at the end of your weld.
If you are looking for an aluminum welding wire that is compatible with your MIG welding machine and is a good fit for your application, check out the Hangzhou Kunli welding materials Co., Ltd brand ER5356 Aluminum Welding Wire. It has a 0.030 or 0.035 inch diameter and is great for welding 5000 series aluminum base metals as well as 5086 lower strength alloys.
ER5087 MAGNESIUM ALUMINUM WELDING WIRE