In gas metal arc welding (GMAW), which combination of process parameter adjustments is most effective in shifting the transfer mode from globular to spray, thereby enhancing weld bead uniformity and deposition rates?
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BDecrease voltage while increasing wire feed speed
CIncrease voltage while decreasing wire feed speed
DDecrease both voltage and wire feed speed
✓ Correct answer: A. Increase both voltage and wire feed speedSpray transfer in GMAW requires both higher voltage and an increased wire feed speed. Increasing voltage expands the arc and supports a rapid droplet transfer, while an increased wire feed speed maintains a consistent droplet supply, collectively stabilizing the spray mode and improving weld quality.
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