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← TechnologyWhich outcome occurs when excessive material removal during creep-feed grinding significantly reduces workpiece rigidity?
A)Chatter and surface waviness form✓
B)Phase transformations increase hardness
C)Thermal expansion reduces stresses
D)Residual compressive force diminishes
💡 Explanation
Surface waviness forms because regenerative chatter is induced by the resonant frequency during metal cutting grinding; therefore, the tool bit vibrates considerably, rather than maintaining consistent contact required for stable abrasive machining, thermal processes impact surface properties.
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