There are three main methods of welding: MIG, TIG and Stick Welding.
Metal Inert Gas Welding (MIG) is a fairly basic welding processes. A machine feeds a spool of solid steel wire through a liner, then out of a thermal or electrically charged contact tip in the MIG gun.
Once the trigger is pulled, the wire is melted for the weld puddle.
You can weld all sorts of metal and alloys by MIG welding, making it ideal for mechanized welding. MIG welding is different because you don’t have to stop and change rods, chip, or brush this weld.
Stick welding is a manual arc welding process using a consumable electrode covered with a flux to lay the weld. Sometimes, this is referred to as shielded metal arc welding or flux-shielded arc welding. This is ideal for outdoor welding and is the most widespread method of welding.
Gas Tungsten Arc Welding or TIG welding, is more difficult to learn and improve at than MIG or Stick welding. It is the most versatile in regards to various metals and TIG welding is frequently used for critical weld joints, welding metals other than common steel, and where precise, small welds are needed. That’s why TIG welding is the most meticulous of the three, but the most valuable as well.