Q76
During cold working process
A.
Grain structure is distorted
B.
Strength and hardness of metal increases
C.
Close dimensional tolerance can be maintained
D.
All of the above
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Cold working is the plastic deformation of metals below the recrystallization temperature. In most cases, such cold forming is done at room temperature. The major cold-working operations can be classified basically as squeezing, bending, shearing and drawing.