Key Features:

• Heat Treatment: The metal is taken to a temperature range where the internal structure can possibly transform to an extremely high strength phase of structure: making it stronger overall.
• Quenching: A rapid cooling of a previously-hot item by water, oil, or air to "quench" the transformed microstructure to make it extremely hard and resistant to deformation.
• Increased Strength: This process usually has good effects on increasing hardness, strength, existing structures, and resistance to wear/the penetration of the metal in highly stressed applications.

Hardening is generally used for cars, airplanes, and manufacturing industries for gear components, shafts, and cutting tools. It is used to increase the durability and performance of very highly stressed and worn metal parts. Advances in hardening technology continue to result in greater precision and efficiency in metalworking.