Annealing:
Annealing involves heating the material to a predetermined temperature and hold the material at the temperature and cool the material to the room temperature slowly. The process involves:
Annealing involves heating the material to a predetermined temperature and hold the material at the temperature and cool the material to the room temperature slowly. The process involves:
- Heating of the material at the elevated or predetermined temperature.
- Holding the material (soaking) at the temperature for longer time.
- Very slowly cooling the material to the room temperature.
The various purpose of annealing process as follows:
- Relieve internal stresses developed during solidification, machining, forging, rolling or welding
- Improve or restore ductility or toughness
- Enhance Machinability
- Eliminate chemical non-uniformity
- Refrain grain size
- Reduce the gaseous contents in steel
Types of Annealing:
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