When performing GMAW with short-circuit transfer mode, what is the typical characteristic of the metal transfer?

Question: When performing GMAW with short-circuit transfer mode, what is the typical characteristic of the metal transfer?

Answer options: ✅ The molten electrode wire periodically touches the weld puddle, creating a short circuit.

• Molten metal droplets are projected across the arc in a fine stream.
• Large, irregular molten droplets fall across the arc to the weld puddle.
• The arc extinguishes and reignites continuously at a high frequency.

Correct answer: The molten electrode wire periodically touches the weld puddle, creating a short circuit.

Explanation: In short-circuit transfer, the electrode wire makes direct contact with the weld puddle, causing a momentary short circuit, which then melts and detaches the molten droplet. This process happens many times per second and is characteristic of this transfer mode. Spray transfer involves fine droplets and globular transfer involves large, irregular droplets. The arc always exists and is not extinguished in true short-circuit transfer.