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GATE 2016 ME (ME1) – Question 33

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

The non-traditional machining process that essentially requires vacuum is

  1. electron beam machining
  2. electro chemical machining
  3. electro chemical discharge machining
  4. electro discharge machining

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Show answer and explanation

Correct answer: (A) electron beam machining

Explanation

Electron-beam machining accelerates and focuses electrons onto the workpiece. A vacuum prevents substantial beam scattering by gas molecules and supports electron-gun operation. Therefore **electron beam machining, A**. The listed electrochemical and discharge processes operate with an electrolyte or dielectric rather than requiring this beam vacuum.