What is annealing, a type of heat treatment?

Annealing is a type of heat treatment process that involves heating a material, typically a metal or glass, to a specific temperature and then slowly cooling it to relieve internal stresses, increase ductility, and improve the material's overall structure and properties. Annealing is often used to soften metals, improve their machinability, and reduce hardness.

Annealing is a type of heat treatment that involves heating a metal or alloy to a high temperature, holding it there for a period of time, and then cooling it slowly. This process softens the metal and makes it more ductile and malleable. Annealing is often used to relieve internal stresses in a metal or alloy, to improve its machinability, or to prepare it for further processing.