The GATE Grind

GATE 2020 ME (ME2) – Question 19

Machining and Machine Tool Operations · Abrasive and non-traditional machining processes · 1 mark · Multiple choice

Which process uses a tapered horn to amplify and focus mechanical energy for machining glass?

  1. electrochemical machining
  2. electrical discharge machining
  3. ultrasonic machining
  4. abrasive jet machining

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Show answer and explanation

Correct answer: (C) ultrasonic machining

Explanation

Ultrasonic machining uses a transducer and shaped horn to transmit/amplify high-frequency mechanical vibration to the tool, with abrasive slurry removing brittle material. It suits nonconductive glass. **Answer: C.**