In this article you can check it out the difference between two manufacturing process annealing and tempering. First of all you should know about both of this process.
What is annealing ?
Annealing is a hardening process, in which material is heated above the re-crystallization temperature and then is cooled in furnace / oil /water.
What is tempering ?
Tempering is a stress removal process, in which material is heated below the re-crystallization temperature and then is cooled in air.
Now we can check the difference between both the two process :
What is annealing ?
Annealing is a hardening process, in which material is heated above the re-crystallization temperature and then is cooled in furnace / oil /water.
What is tempering ?
Tempering is a stress removal process, in which material is heated below the re-crystallization temperature and then is cooled in air.
Annealing is used for :
- Soften a metal for cold working
- Improve machinability
- Enhance electrical conductivity
Tempering is used for:
- Hardness
- Ductility
- Toughness
- Strength
- Structural stability
Now we can check the difference between both the two process :
- Annealing is softening the metal after work hardening while tempering is reducing brittleness after quench hardening.
- Annealing increase ductility and toughness, stress relieving while tempering is the process of introducing toughness.