Gas metal arc welding

Gas metal arc welding, also known as MIG welding, is a way to stick pieces of metal together using a special tool called a welder. Think of it like a glue gun, but for metal instead of glue.

The welder works by using an electric current to make a little spark between a wire that comes out of the tool and the metal that you're trying to join together. This spark melts the wire and the metal, which then cools and sticks together to form a bond.

To make sure that the metal stays strong and doesn't break apart, you need to use a gas to protect it from the air. This gas is called shielding gas, and it comes out of the welder along with the wire.

MIG welding is a popular way to join metal because it's easy to learn and use. It's used for all sorts of things, from building cars and trucks to making sculptures and artwork.