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← TechnologyWhich risk increases when exceeding tolerance limits in forging?
A)Work hardening initiates fracturing✓
B)Grain boundary area decreases sharply
C)Increased part surface smoothness
D)Uniform material property improvement
💡 Explanation
Exceeding tolerance in forging leads to inconsistent plastic deformation causing uneven stress distribution; excessive strain levels promote work hardening; therefore, work hardening creates areas susceptible to crack initiation and eventual fraction, rather than the part becoming uniformly strengthened.
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