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Option 2 : Harden steel slightly
Concept:
- Annealing is a heat treatment process in which the material is taken to a high temp, kept there for some time, and then cooled in the furnace itself.
- Cooling is done slowly to avoid the distortion.
- Benefits of annealing are:
- Relieve stresses
- Increase softness, ductility, and toughness
- Produce a specific microstructure
- Improve machining characteristic
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