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| Q. |
In Micro-Ultrasonic Machining, which of the following component vibrates? |
| A. | tool |
| B. | work piece |
| C. | feed pipe |
| D. | all of the mentioned |
| Answer» B. work piece | |
| Explanation: unlike the normal ultrasonic machining, micro-usm utilizes the work piece’s vibration and the rotation of the tool. | |
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