What effect does increasing stickout have on weld penetration?

What effect does increasing stickout have on weld penetration?

• A. Penetration Increases.
• B. Penetration Is Not Affected.
• C. Penetration Decreases.
• D. Only Penetration On Groove Welds Is Affected.

Answer: (C)

Increasing stickout lengthens the arc and reduces heat input delivered to the base metal. With less heat concentrated at the joint, the weld pool tends to fuse less deeply, so penetration decreases as stickout grows. This effect occurs across different welds in wire feed welding, not just groove welds. So the option that best fits is that penetration decreases.

Increasing stickout lengthens the arc and reduces heat input delivered to the base metal. With less heat concentrated at the joint, the weld pool tends to fuse less deeply, so penetration decreases as stickout grows. This effect occurs across different welds in wire feed welding, not just groove welds. So the option that best fits is that penetration decreases.