In SMAW welding, an irregular bead with excessive reinforcement typically indicates which condition of the welding current?

• A. Travel speed is too fast
• B. Current/amperage is too high
• C. Electrode angle is incorrect
• D. Current/amperage is too low

Answer: (D)

Bead shape is a direct sign of heat input. When the welding current is higher than the process requires, the arc delivers more heat, melting more base metal and filler and causing deeper penetration and a larger, more convex bead that rises above the surrounding surface. That excessive reinforcement often shows up as an irregular, bulky weld bead because the molten metal is deposited too aggressively and solidifies unevenly. So, an irregular bead with excessive reinforcement points to too much current (amperage) being used. If the current were too low, you’d see insufficient fusion and a flatter, weaker bead rather than an oversized one.