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← TechnologyWhich outcome acutely risks failure to maintain part tolerance during closed-die forging operations within a high-throughput manufacturing process?
A)Thermal expansion mismatch occurs✓
B)Grain boundary sliding dominates
C)Alloying element segregation increases
D)Strain rate sensitivity reduces
💡 Explanation
Thermal expansion mismatch between the die and the forging billet leads to dimensional inaccuracies because non-uniform cooling causes warpage, therefore tolerance is lost, rather than changes in grain boundaries or strain rate having this immediate effect.
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