Final answer:
The primary difference between MIG and TIG welding lies in the type of electrode used, with MIG welding using a consumable electrode wire and TIG welding using a non-consumable tungsten electrode. MIG welding is faster and is commonly used for thicker materials, while TIG welding is slower and is used for thinner materials and precision work. Additionally, MIG welding produces a higher heat input compared to TIG welding.
Step-by-step explanation:
The primary difference between MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding lies in the type of electrode used. MIG welding uses a consumable electrode wire, which is continuously fed into the weld pool. On the other hand, TIG welding uses a non-consumable tungsten electrode that creates the arc without melting.
Another difference is the speed of the two processes. MIG welding is generally faster than TIG welding because the consumable wire allows for continuous welding.
The thickness of the materials being welded also plays a role. MIG welding is ideal for thicker materials, such as structural steel, while TIG welding is often used for thinner materials, precision work, and intricate welds.
Additionally, there is a difference in heat input. MIG welding has a higher heat input compared to TIG welding, which can result in more distortion and larger heat-affected zones.