A discontinuity associated with metal overflow during forging is called

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Multiple Choice

A discontinuity associated with metal overflow during forging is called

Explanation:
When metal is forged, extra material can flow out as flash. If that overflow folds back onto the workpiece and forms an overlapping layer, it creates a surface discontinuity known as a lap. This overlapped metal may bond imperfectly and appear as a raised seam along the surface. The other terms describe different defects—seams are joint lines, flakes refer to flaky surface imperfections, and laminations are internal layer separations—so they don’t specifically describe overflow-induced overlap.

When metal is forged, extra material can flow out as flash. If that overflow folds back onto the workpiece and forms an overlapping layer, it creates a surface discontinuity known as a lap. This overlapped metal may bond imperfectly and appear as a raised seam along the surface. The other terms describe different defects—seams are joint lines, flakes refer to flaky surface imperfections, and laminations are internal layer separations—so they don’t specifically describe overflow-induced overlap.

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