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← TechnologyWhich outcome occurs when a lathe's hydraulic system leaks during high-speed machining?
A)Chatter and dimensional inaccuracy increase✓
B)Thermally-induced creep drastically declines
C)Cutting tool wear becomes self-arresting
D)Surface finish spontaneous improves anomalously
💡 Explanation
When hydraulic fluid leaks, the hydrostatic bearing pressure fluctuates due to decreased system rigidity; this introduces vibrations controlled by **negative damping**. Therefore, chatter and dimensional inaccuracy worsen, rather than thermal stability increasing or tool wear inherently improving, because consistent pressure is essential.
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