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Discussion

Cold working of steel is defined as working

  • A.At its recrystallisation temperature
  • B.Above its recrystallisation temperature
  • C.Below its recrystallisation temperature
  • D.At two thirds of the melting temperature of the metal

Answer: C

Cold forming or cold working can be defined as the plastic deforming of metals and alloys under conditions of temperature and strain rate. Theoretically, the working temperature for cold working is below the recrystallisation temperature of the metal/alloy (which is about one-half the absolute melting temperature).

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