TSince TIG(GTAW) welding can be difficult there is all kinds of information that will help you understand it better and how to do it more effectively. There are a few things that need to be in place before you start to weld using the TIG method.
What to prepare
The first thing you want to do is prepare the area where you are going to do your welding because you want it to be kept free of contamination. This means that you will have to really clean the area to make sure you have no grease, moisture or dust. You will also want to make sure there are no air drafts in this area because this could bring more problems.
The next thing to prepare is the metal that you are going to use for TIG Welding . Using a stainless steel wire brush you can brush your joints so they are as clean as possible as to get the best weld possible. Many welders will dedicate one brush to whatever metal they have so they don't have to worry about cross contamination.
If have slag on any of the metal you can remove it with a file. Next, you will want to clean the base metal. The reason you want everything to be so clean is that if contaminated, the metal can either break down or make a bad connection. Of course, it depends on the metal which it will do, so cleaning everything can stop this from happening.
Beginning to weld
Everyone knows that their weld can potentially get contaminated by just about anything so you really want to make sure you have a shield gar so you can prevent this as much as possible. Most welders will use Argon because it seems to work best with Welding . By using this gas, you are protecting the area from oxygen which can contaminate what you are doing.
If you are using thicker aluminum, you can also add helium to the Argon because it ionizes hotter than Argon and you will need the hotter temperature in these types of welds. If you need helium you can get these already premixed, this is available with your gas supplier.
A note about suppliers: they are not the same so you will want to make sure you use someone who is reputable. Before you go ahead and buy, you want to check for leaks at all of the sealing points.
When you are checking for TIG Welding leaks as you weld the best way is to use water and soap and a small acid type brush. These together will produce bubbles if there are any gas leaks. All you do is apply this solution of water and soap on the joint to and if you see air bubbles, you know you have a leak.
You will want to check all your supply hoses and gas connections to make sure there are no leaks before you get started. Make sure the torch insulators and your o-rights are fitting properly and that the seals are intact.
Its important to be able to see as easy as possible so as to avoid problems and be more precise and a tool that will help you do this is a gas lens that hooks onto your torch.
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