Vacuum in the machining zone is an essential requirement for
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- Electric Discharge Machining
- Chemical Machining
- Electro Chemical Machining
- Electron Beam Machining
The Correct Option is D
Solution and Explanation
- Other options such as Electric Discharge Machining (EDM), Chemical Machining, and Electrochemical Machining do not require a vacuum in the machining zone.
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