What conducts the welding wire, shielding gas, and welding current to the welding gun?

What conducts the welding wire, shielding gas, and welding current to the welding gun?

• A. Power supply
• B. Ground cable
• C. Welding gun
• D. Shielding nozzle

Answer: (C)

Delivering all three elements to the arc is the job of the welding gun. The electrode wire is fed through the gun and passes through the contact tip, which conducts the welding current from the power supply into the wire and across the arc. Shielding gas flows through the gun’s nozzle around the tip to shield the molten weld from the atmosphere. The ground cable provides the return path to the power supply and does not carry the wire or shielding gas to the gun. So the gun is the component that brings the wire, gas, and current together at the weld.

Delivering all three elements to the arc is the job of the welding gun. The electrode wire is fed through the gun and passes through the contact tip, which conducts the welding current from the power supply into the wire and across the arc. Shielding gas flows through the gun’s nozzle around the tip to shield the molten weld from the atmosphere. The ground cable provides the return path to the power supply and does not carry the wire or shielding gas to the gun. So the gun is the component that brings the wire, gas, and current together at the weld.