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Ultrasonic machining (USM): principal metal removal mechanism In ultrasonic machining of hard/brittle materials, how is material removed from the work surface? Choose the correct mechanism.

Difficulty: Easy

Abrasive slurry between tool and work driven by ultrasonic vibration
Direct continuous contact cutting by the hard tool edge
Electrolytic dissolution in a small gap (electrochemical process)
Erosion by spark discharges across a gap (EDM)

Correct Answer: Abrasive slurry between tool and work driven by ultrasonic vibration

Explanation:

ConceptUSM uses a vibrating tool to hammer abrasive grains (in a slurry) against the work, causing micro-chipping. It is mechanical erosion via abrasives, not direct cutting, electrolysis, or spark erosion.

Final AnswerAbrasive slurry between tool and work driven by ultrasonic vibration

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Ultrasonic machining (USM): principal metal removal mechanism In ultrasonic machining of hard/brittle materials, how is material removed from the work surface? Choose the correct mechanism.

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