What is the basis of classification of hot and cold working, Chemical Engineering

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What is the basis of classification of hot and cold working?

Cold and hot working:

Changing the shape of material by extrusion, forging, rolling, and drawing include plastic deformation of metals. When the deformation is carried out at temperature below the recrystallization temperature, it is known as cold working like cold rolling, drawing, pressing, spinning, impact extrusion. When the deformation is at temperature higher than the recrystallization temperature the process is called as hot working like forging, rolling, extrusion.

 


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