Topic: Manufacturing Processes
In ultrasonic machining process, the material removal rate would
- A. Increase
- B. Decrease
- C. Increase and then decrease
- D. Decrease and then increase
Answer: A. Increase
Explanation: In the Ultrasonic Machining (USM) process, the rate of work material removal is proportional to both the frequency and the amplitude of vibration. As the frequency or amplitude of vibration is increased, the material removal rate (MRR) increases linearly.