If you are asking "how do you tig weld" then I have a great answer for you.
How to TIG Weld
Step 1: Get Ready First, put on your safety gear: gloves, helmet, and long sleeve shirt and safety glasses. Safety first!
Step 2: Set Up Your Welder... Turn on the TIG welder and adjust the settings. consult the instruction manual if you're not sure of exact settings.
Some tig welding machines are fairly simple with only a few settings.
Others have hidden menus with all kinds of bells and whistles.
But the basics dont change.
Set to AC for aluminum and DC for carbon steels, stainless steels, and practically everything else.
Step 3: Prepare Your Metal... Clean the metal you're going to weld. For hot rolled steel, this means using a grinding wheel or flap disc. For stainless and aluminum that is new and clean, a simple wipe down with acetone might be enough. It needs to be shiny and free from rust or dirt.
Step 4: Get Your Tungsten sharp. Put on your safety glasses and grind the tungsten electrode to a point. I grind tungsten pretty much the same for both AC and DC welding. Here is a great video on cutting and sharpening tungsten electrodes
Step 5: Check the argon gas tank to make sure it's full. leak check all fittings to make sure they are tight and leak free.
Step 6: Start Welding! Hold the welding torch like a fat pencil. Press the pedal to start the arc, then slowly move the torch along the joint.
Step 7: Keep it Smooth Move the torch smoothly along the joint, keeping the arc close but not too close. Step 8: Finish Strong... When you're almost done, slowly release the pedal to stop the arc. Let the weld cool down, then check it for any defects or imperfections.
Step 9: Clean Up Turn off the welder and put away your gear. Wait several minutes and check the area for any evidence of a smoldering fire before leaving.