The GATE Grind

GATE 2017 ME (ME2) – Question 35

Casting, Forming and Joining Processes · Casting: patterns, moulds, cores, solidification, riser and gating design, defects · 1 mark · Multiple choice

A T-shaped cross section is to be made from a rectangular aluminium block. Which process is expected to give the highest strength?

  1. Welding
  2. Casting
  3. Metal forming
  4. Machining

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Show answer and explanation

Correct answer: (C) Metal forming

Explanation

Metal forming can align grain flow with the component shape and improve strength through plastic working without creating a welded joint or solidification defects. Under the comparison intended in the question, **metal forming, C** is expected to provide the highest strength. The exact strength still depends on alloy, heat treatment and processing conditions.