8. What is the difference between hot working and cold working? a. Hot working i

Question

8. What is the difference between hot working and cold working?

a. Hot working is done at temps above the recrystallization temperature, clod working is below the recrystallization temperature

b. Hot working is done at temps higher than 100 °C (boiling point of water), cold work is done at temps at or below 100 °C

c. Hot working uses a flame to heat the material during processing, cold working uses a stream of cold water sprayed on the material during processing

d. Hot working is done above the solidus temperature of the alloy, cold work is done below the solidus

Explain your answer

Explanation / Answer

The difference between hot working and cold working is

a. Hot working is done at temps above the recrystallization temperature, clod working is below the recrystallization temperature.

this is because,

When the processing temperature of the mechanical deformation of steel is above the recrystallization temperature, the process is termed as hot working; otherwise, it is cold working. For hot working processes, large deformation can be successively repeated, as the metal remains soft and ductile.

Related Questions

Navigate

• Browse (All)
• Browse 8
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.