Mechanical Engineering > GATE 2017 SET-1 > Unconventional Machining
Match the processes with their characteristics.
| Process | Characteristics |
| P: Electrical Discharge Machining | 1. No residual stress |
| Q: Ultrasonic machining | 2. Machining of electrically conductive materials |
| R: Chemical machining | 3. Machining of glass |
| S: Ion Beam Machining | 4. Nano-machining |
Correct : a
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