Multiple choice

An expendable pattern is used in

  1. slush casting

  2. squeeze casting

  3. centrifugal casting

  4. investment casting
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Investment casting uses an expandable pattern, which is made of wax or of a plastic by molding or rapid prototyping techniques. This pattern is made by injecting molten wax or plastic into a metal die in the shape of the pattern.

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