Annealing is a heat treatment process used to modify the microstructure of a metal to reduce hardness, increase ductility and help eliminate internal stresses. This process is used to make material more easily shaped without cracking and useful for steels, which can be too hard or brittle for forming processes.
Annealing process involves heating metal up to a high temperature, and then cooling it very slowly to room temperature, so that the resulting microstructure will possess high ductility and toughness, but low hardness. Annealing is performed by heating a component to the appropriate temperature, soaking it at that temperature, and then shutting off the furnace while the piece is in it. Steel is annealed before being processed by cold forming, to reduce the requirements of load and energy, and to enable the metal to undergo large strains without failure.
Annealing heat treatment is a combination of heating to an appropriate temperature for a certain period of time and slowly cooling operations applied to an alloy or metal for obtaining the desired properties. Annealing is indeed one of the most important heat treatment processes for materials like many types of steel , cast iron, aluminum, copper, brass, and other materials.Get Quote