In order to weld in TFC, you need to have a few things. First, you need an inert gas, such as argon. Second, you need a power source that can provide enough heat to weld the metal. Third, you need a welding rod that is made of the same material as the metal you are welding. Fourth, you need a welder's mask to protect your eyes from the bright light created by the welding process. Finally, you need gloves and a fireproof blanket to protect yourself from the heat and sparks generated by welding.
When you have all of these things, set up your work area so that it is well ventilated and free of any flammable materials. Then, connect your power source to your welding rod and turn it on. Hold the rod close to the area you want to weld and wait for it to get hot enough to melt the metal. Once it is hot enough, touch the tip of the rod to the metal and then move it along in a smooth motion until you have completed your weld.