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← TechnologyWhich imperfection risk increases significantly in automated bearing grinding?
A)Chatter marks due to resonance✓
B)Surface oxidation from coolant breakdown
C)Cracking due to excessive force
D)Geometric deviation due to thermal drift
💡 Explanation
Resonance-induced chatter emerges because dynamic grinding processes amplify minor vibrations via the **regenerative effect**. This causes surface defects rather than oxidation, cracking, or drifting. Therefore, increased automation without adequate damping monitoring heightens chatter risk rather than alternative failure modes.
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