What is the voltage range for globular transfer?

What is the voltage range for globular transfer?

• A. 22-26 volts
• B. 26-35 volts
• C. 18-22 volts
• D. 30-40 volts

Answer: (A)

Globular transfer happens when the arc length is medium—not too short and not too long—so metal forms and drops to the weld pool in large globules. This requires a moderate voltage: enough to lengthen the arc and grow droplets, but not so high that the droplets break into many fine particles (spray transfer). In practice, that moderate range is around twenty-two to twenty-six volts. Choosing a voltage in this window supports the formation of larger droplets that “globe” and fall into the weld, which is why this range best fits globular transfer. If you drop below that, you’d be in short-circuit transfer with smaller droplets; if you push above it, you’d move toward spray transfer with mist-like droplets.

Globular transfer happens when the arc length is medium—not too short and not too long—so metal forms and drops to the weld pool in large globules. This requires a moderate voltage: enough to lengthen the arc and grow droplets, but not so high that the droplets break into many fine particles (spray transfer). In practice, that moderate range is around twenty-two to twenty-six volts.

Choosing a voltage in this window supports the formation of larger droplets that “globe” and fall into the weld, which is why this range best fits globular transfer. If you drop below that, you’d be in short-circuit transfer with smaller droplets; if you push above it, you’d move toward spray transfer with mist-like droplets.