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Which outcome occurs when a CNC lathe consistently exceeds positional tolerances during high-speed aluminium machining?

A)Resonance induces tool chatter
B)Thermal runaway of coolant occurs
C)Workpiece experiences excessive strain
D)Lubricant viscosity significantly increases

💡 Explanation

Resonance results in tool chatter because the lathe's structure and cutting tool vibrate at a coinciding frequency, exceeding positional tolerances. Therefore, the surface finish degrades, rather than thermal issues or material strain predominating under these dynamic conditions.

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