Gun Deals
Advertise on Northwest Firearms
Southwest Firearms
Defensive Arts
Sporting Systems
Buster Beaver Cerakote
J&B Firearm Sales
Simply Triggers
Low Price Guns
HighLine Firearms
DSG Arms
Oregon Rifleworks
Annealing, in metallurgy and materials science, is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable. It involves heating a material above its recrystallization temperature, maintaining a suitable temperature for a suitable amount of time, and then cooling.
In annealing, atoms migrate in the crystal lattice and the number of dislocations decreases, leading to a change in ductility and hardness. As the material cools it recrystallizes. For many alloys, including carbon steel, the crystal grain size and phase composition, which ultimately determine the material properties, are dependent on the heating, and cooling rate. Hot working or cold working after the annealing process alter the metal structure, so further heat treatments may be used to achieve the properties required. With knowledge of the composition and phase diagram, heat treatment can be used to adjust between harder and more brittle, to softer and more ductile.
In the cases of copper, steel, silver, and brass, this process is performed by heating the material (generally until glowing) for a while and then slowly letting it cool to room temperature in still air. Copper, silver and brass can be cooled slowly in air, or quickly by quenching in water, unlike ferrous metals, such as steel, which must be cooled slowly to anneal. In this fashion, the metal is softened and prepared for further work—such as shaping, stamping, or forming.

View More On Wikipedia.org
  1. C

    Case Annealing

    Looking for someone who offers annealing services. if you do this work, or know someone who does, please let me know. Thanks.
Sporting Systems
Cerberus Training Group
Southwest Firearms Forum
DSG Arms
NW Custom Firearms
Project Appleseed
Copeland Custom Gunworks
Advertise on Northwest Firearms
Top