MIG Welding

GMAW stands for 

• Gas Metal Arc Welding
• Gas Metal Argon Welding
• Gas Metal Acetylene Welding
• Gas Meeting Arc Welding 

The large MIG welders in this shop use what size wire?

• .35
• .045
• .035
• .030

The small MIG welders in this shop use what size wire?

• .30
• .035
• .045
• .030

What is this?

• Nozzle
• Wire
• Contact Tip
• Liner

What is this?

• Nozzle
• Liner
• Contact Tip
• Wire

What is this

• Contact Tip
• Nozzle
• Wire
• Liner

All of our MIG welders use what welding gas?

• 75% Carbon Dioxide / 25% Argon
• 100% Carbon Dioxide
• 100% Argon
• 75% Argon / 25% Carbon Dioxide

What is the recommended stick out for solid wire?

• ~ 3/8'
• ~ 3/8"
• ~ 7/8"
• ~ 5/8'

What does the MIG nozzle do?

• Funnels the gas away from the weld
• Funnels the gas over the weld
• Stabilizes the wire
• Helps feed the wire

Which is NOT a benefit of using 75/25 gas?

• Less splatter
• Good bead appearance
• Wont burn through thinner material as easy
• Cost less than CO2