What is Annealing in Metal?
Annealing is a heat treatment process used in metallurgy to change a material’s physical and sometimes chemical properties, especially a metal. The annealing process involves heating the metal to a specific temperature, maintaining it for some time, and then slowly cooling it. The primary purposes of annealing are to eliminate internal stresses, increase flexibility, improve toughness, refine the grain structure, and restore elasticity to the material after cold working.