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← TechnologyWhich dimensional outcome occurs if the die temperature is too low during closed-die forging of a titanium turbine blade?
A)Increased flow stress, incomplete die fill✓
B)Grain growth, excessive flash formation
C)Accelerated oxidation, surface roughness
D)Decreased ductility, internal cracking
💡 Explanation
Inadequate die temperature increases the metal's resistance to deformation. Therefore, the increased flow stress caused by chilling results in incomplete die fill, rather than excessive flash because the material requires more force to deform correctly into the die cavities.
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