Between FCAW passes, what is the proper slag handling procedure?

Study for the Gas Metal Arc Welding Exam, including GMAW, FCAW, and MCAW methods. Use flashcards and multiple choice questions with hints and explanations for effective learning. Get ready for your welding certification!

Multiple Choice

Between FCAW passes, what is the proper slag handling procedure?

Interpass cleanliness matters because slag forms as a protective layer during FCAW, but it also sits on the weld surface. To ensure proper fusion when you lay the next pass, you must chip away the slag and brush the area clean before starting the next bead. If you leave slag in place, the next pass may not fuse correctly to the previous weld, leading to lack of fusion or slag inclusions that weaken the weld. Removing slag between passes exposes clean metal so the next pass can fuse properly. After the final pass, you typically remove any remaining slag to inspect the finished weld surface.

Interpass cleanliness matters because slag forms as a protective layer during FCAW, but it also sits on the weld surface. To ensure proper fusion when you lay the next pass, you must chip away the slag and brush the area clean before starting the next bead. If you leave slag in place, the next pass may not fuse correctly to the previous weld, leading to lack of fusion or slag inclusions that weaken the weld. Removing slag between passes exposes clean metal so the next pass can fuse properly. After the final pass, you typically remove any remaining slag to inspect the finished weld surface.

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