What must be done to the joint before making plug welds?

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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

What must be done to the joint before making plug welds?

Explanation:
When making plug welds, the pieces being joined must be held tightly together so they sit flush during welding. Clamping keeps the sheets from shifting and eliminates gaps, which helps the weld fuse into both pieces instead of just the surface and minimizes heat distortion. Welding before clamping can let the panels move or warp, resulting in misalignment and a weak weld. Leaving a gap defeats fusion, and while removing coatings or paint is good prep for better weld quality, the essential step to secure the joint is clamping it tightly.

When making plug welds, the pieces being joined must be held tightly together so they sit flush during welding. Clamping keeps the sheets from shifting and eliminates gaps, which helps the weld fuse into both pieces instead of just the surface and minimizes heat distortion.

Welding before clamping can let the panels move or warp, resulting in misalignment and a weak weld. Leaving a gap defeats fusion, and while removing coatings or paint is good prep for better weld quality, the essential step to secure the joint is clamping it tightly.

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