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GATE 2022 ME (ME1) – Question 28

Additive Manufacturing · Additive manufacturing processes · 1 mark · Multiple select

Which of the following additive manufacturing technique(s) can use a wire as a feedstock material?

  1. Stereolithography
  2. Fused deposition modeling
  3. Selective laser sintering
  4. Directed energy deposition processes

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Correct answer: (B) Fused deposition modeling; (D) Directed energy deposition processes

Explanation

Fused deposition modelling extrudes a thermoplastic filament (a wire), and directed energy deposition can feed metal wire into the melt pool. Stereolithography uses liquid resin and selective laser sintering uses a powder bed.