MIG Gun Guide
Use these simple diagrams to inform the way you use your MIG gun
Selecting a Cooling System
When deciding between a water- or air-cooled MIG gun, there are a few factors you should consider. Specifically, you should focus on the application and amperage requirements, welding operator’s preference and cost considerations. Read more on Airgas Thinks.
GMAW Variables
- Stick Out
- Electrode Extension
- Arc Length
- Nozzle-to-Work Distance
- Contact Tip to Work Distance
- Contact Tip Setback
Gun Position
Gun angles and positions
- Stick Out
- Electrode Extension
- Arc Length
Travel Angles
Electrode Extension-Amperage
Travel Speed
- Incorrect travel speeds can cause discontinuities and rejectable welds
- Travel speeds affects penetration and weld bead shape
Gun angles and positions
- Help shape the weld bead
- Help determine the penetration
