TIG (Tungsten inert gas) welding is the most preferred form of welding there is now. It delivers neat and clean weld results. The equipment for TIG welding is considered expensive and it is not as easy to learn as other forms of welding. This one requires a lot of control, technique and practice in order to become good at.
TIG welding is done by an electric arc and long welding rods that you gently feed to the weld puddle. This form of welding is used mostly for thinner types of metal. With TIG welding you can produce items like tool boxes and kitchen sinks. it can also be used to weld things like fine jewellery etc.
The process of TIG welding is a means which combines tungsten electrodes and inert gas to weld. The gas is used as a shield to protect the atmosphere from pollution. When welding, you should sit at a table. Also it is important to ensure your work and tools are nice and clean in orders to avoid any contaminations. Also wear gloves to protect the skin. The TIG welding machine has several settings: the AC setting is used to weld aluminum, while the DC setting is used for any other kind of metal.
While welding it is important for you to know that not less than 1 amp is used for every 1/1000 inch of iron thickness.
The heat used to do this welding is controlled by a control switch or dial on the body of the torch, or a foot pedal
Applying pressure on the pedal with your foot increases the heat and releasing the pressure on the pedal will cool it.
Also setting the flow of the argon shielding gas is essential. 12-14 cfh is advised for welding steel, and sixteen to eighteen cfh for welding aluminum.
Hold the torch in one hand and also hold the filler rod in the other hand
The electrode that the torch holds, directs the arc which works by creating a weld puddle
Sharpen the tungsten electrode to a point that should look like a pencil.
Hold your torch in your work hands and make sure it is in a comfortable position then, put your feet on top of the pedal which is used to control the heat temperature.
When getting an arc, position the welding torch at 1/8 inch from the table and apply pressure on the pedal.
Ensure to hold the welding torch at 70 – 80 degrees and hold the rod at about 15 degrees. Keep practicing with the pedal and ensure that your welding torch is kept at at least 1/8 inch from the work surface. Keep applying pressure on the pedal and when you see a puddle insert a dab of the filler rod into the puddle and remove it then release the pressure on the pedal to freeze the metal. Keep repeating this procedure until you notice a design that looks like a row of several rings lying together to create a domino effect.