Difference between Hot Working and Cold Working:
Hot Working:
- When the work is done above the re-crystallization then this is called hot work.
- In this working conditions surface finish is low.
- This is no need of an Intermediate annealing at this working conditions.
- Hot working can improves mechanical properties.
- Hot working does not develop residual stress.
- Hot working helps to join the cracks.
- Hot working may leads to formation of scaling.
- It has more impurities constituent problems.
- Oxidation occurs in this process.
- Material under hot working is uniform.
Also Read:
Advantages and disadvantages of hot working and cold working.
Difference between hot working and cold working.
Cold Working:
- When the work is done below the re-crystallization then it is known as cold working.
- This work can make high surface finish.
- Mechanical properties may losses in cold working metals.
- This process required Intermediate annealing.
- Cold working has no impurities problems.
- Cold working may leads to crack formation.
- Scaling does not occurs at cold working.
- This work can develop Residual stress.
- Oxidation does not occur in these working conditions.
- Material under cold working is not uniform.
