If the drive-roll pressure against the wire is too high, what happens to the wire?

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Study for the GMA Welding for Collision Repair. Prepare with multiple-choice questions, flashcards, hints, and detailed explanations. Enhance your skills and confidently tackle your exam!

Multiple Choice

If the drive-roll pressure against the wire is too high, what happens to the wire?

Explanation:
Excess drive-roll pressure crimps and deforms the wire as it is pushed through the feed system. That extra squeezing causes the wire to bend and buckle inside the liner, so it winds up in a spiral and locks up—the wire binds. When the tension is too high, feeding becomes jammed rather than faster, and the arc stability and weld quality don’t improve; they usually suffer from irregular wire delivery.

Excess drive-roll pressure crimps and deforms the wire as it is pushed through the feed system. That extra squeezing causes the wire to bend and buckle inside the liner, so it winds up in a spiral and locks up—the wire binds. When the tension is too high, feeding becomes jammed rather than faster, and the arc stability and weld quality don’t improve; they usually suffer from irregular wire delivery.

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