GMAW Equipment

3. Continuously supplies the electrode wire at a controlled speed to help maintain a stable arc.
7. Transfers the electrical current to the welding wire while it guides the wire to the weld pool.
10. Evenly distributes the shielding gas around the contact tip and nozzle.
11. Allows for good arc stability and low spatter.
13. Completes the circuit once attached to clean metal.
15. Separates the conductive parts to prevent electrical shorts.
16. Plastic part where the welder grips the gun.
17. Initiates the electrical arc and controls the flow of wire.

1. Delivers the welding wire to the gun & must be the same size at the welding wire.
2. Function is to deliver shielding gas, wire, and welding current to the weld pool.
4. Low-cost gas with deep penetration.
5. Provides a constant voltage or constant current needed for welding.
6. Allows for a constant flow of shielding gas but is not as accurate as a flow meter.
8. Known as "gold gas" that has less spatter and a deep weld pool penetration.
9. Carries the electrical current from the power source to the wire while also connecting the handle to the front end components.
12. Directs the shielding gas over the weld pool.
14. More accurate than the flow gauge to allow for a constant flow of shielding gas.