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← TechnologyWhich risk increases when a metal forging blank exceeds drawing tolerance?
A)Work hardening during forging
B)Increased flash formation and trimming
C)Die failure due to overload✓
D)Alloying element diffusion during heatup
💡 Explanation
Die failure will happen if excess material is forced through a restricted space because the high forming load is more than expected during 'coining'; hence overload leads to fracturing, rather rather than merely leading to excess flash needing removal.
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