To soften & relieve strains in any solid material, such as metal or glass, by heating to just below its melting point & then slowly cooling it. Annealing generally lowers the tensile strength of the material, while improving its flex life & flexibility.
To reduce the brittleness and increase the ductility of metal by heating to, a certain temperature, then cooling slowly in air or oil.
To heat a metal until it is soft for working, followed by gradual cooling to strengthen or temper the metal.
To heat metal in order to lower its hardness. The term anneal refers to the heat treatment given to 300 series stainless and most 400 series stainless by the steel mill after the raw material has been completed, but before fittings are manufactured. Anneal also refers to the heat treatment given 400 series stainless fittings after their manufacture (also called hardening and tempering) to lower hardness and increase toughness. For example, fittings of 410 stainless may score over 200,000 psi after manufacture and be too brittle. By annealing at 1000 degrees F., tensile strength would reduce to 125,000-150,000 psi, while annealing the same material to 500 degrees F. would bring tensile to 160,000-190,000 psi.
The controlled cooling of hot glass to remove stress.
To heat a material to some elevated temperature to reorder the crystal structure and remove stresses. The subsequent cooling schedule affects the final level of stresses.
To anneal is simply to heat in an oven at a certain rate and then cool again. The polymer films in this study were annealed at 523 K (300 degrees F, a typical temperature for a kitchen oven) heated at 5 K/minute and cooled at 2 K/min.
To soften metal via controlled heating and cooling.
Alternate spelling - anueal. The process of softening metal. For ferrous metals containing iron, the process involves heating the steel up to its critical temperature and then slowly cooling it. For non-ferrous metals such as brass, bronze, silver, gold, and aluminum, the process is modified. The metal is heated to its critical temperature and then quickly quenched in water, snow, urine, or oil. What annealing actually does on a molecular level is to allow the metal crystals to realign, moving them into their more relaxed state. When the metal is worked, the crystals are moved out of alignment, contributing to both hardness and brittleness. When producing arms and armour the metal must be annealed as it is worked; if not, the metal can become stressed to the point where it will break.
Allowing the glass to gradually cool from the inside out to prevent fractures.
Heat treatment to metals and glass that alters the crystal structure of the material. The effect is to softens metal (before working) and to toughen glass (to finish a pendant for instance).
Metal is annealed by heating to make it workable. In the making of jewelry, precious metals become work hardened or stressed when they are hammered, forged, rolled or bent (as in fold forming) making it brittle. Jewelers sometime purchase metals in their annealed state which may be referred to as soft or half hard.
To subject metal to a process of heating and slow cooling in order to reduce brittleness or hardness. To soften metal alloys.
To heat a metal and cool slowly to relieve hardness or brittleness that may have occurred naturally or have been induced by pressure or bending.
A heating enhancement process used with color gemstones. The term originated with the Independent Gemological Laboratories (IGL), an industry leader in diamond grading specializing in larger stones. Also, a heating process to soften precious metals.
toughen (steel or glass) by a process of gradually heating and cooling; "temper glass"
To heat metal, glass or other materials above the critical or recrystallisation temperature, then cool it to eliminate the effects of colour working, relieve internal stresses or improve electrical, magnetic or other properties.
A high-temperature heat treatment designed to reduce stress.
The process of using heat to relieve stresses within a metal. At a heat usually near 2/3rds of the metals melting point recrystallization occurs, creating a more flexable alignment among the crystals.
The process of heating and slowly cooling a metal to relieve stresses and eliminate hard spots.
To subject to heat with subsequent cooling. When annealing copper; the act of softening the metal by means of heat to render it less brittle.
The controlled process for making glass stronger and less brittle in which the glass is heated and then cooled.
The process of alternately heating and then cooling glass or metal to make it more durable.
To subject glass to a process of heating and slow cooling in order to strengthen it and reduce brittleness.
heating and holding at a certain critical temperature then cooling at a certain rate to soften, improving workability, and relieving internal stresses
A treatment process of heating and slow cooling of colored gemstones and metals.
a way of strengthening jewelry. The metal is heated, then cooled, which makes it more flexible and less brittle.
The process of reducing the hardness and increasing the ductility of metal parts by heat treatment. Steel, stainless steel and brass blind threaded inserts are typically annealed to reduce the upset or installation load required and to reduce the risk of fracture at the outer perimeter of the bulb.
Heating and cooling of metal or glass to toughen it.
Final stage in manufacture of glass. Cooling process that gives glass its temper. Greatly influences the cuttability of glass.
The process of heating, then cooling slowly, for the purpose of making metals less brittle.
To soften a metal by controlled heating and cooling. Normally done before bending or swaging.
Relief of mechanical stress through head and gradual cooling. Annealing copper renders it less brittle.
Heat treatment to soften the temper of metal
The process of heating and cooling slowly to prevent brittleness.
A vacuum heat treatment process in which a material is relaxed and uneven or heterogeneous regions of a substrate, which result from the application of internal stress, are homogenized.
A process used to cool formed glass at controlled temperature rates to prevent thermal stresses.
A process that prevents or removes strain by heating glass above a certain temperature and then cooling slowly in a very controlled manner. Used in glass manufacturing.
to prevent the formation of or remove stresses in plastics by cooling from a suitable temperature.
to heat aluminium and alloys at a temperature which is sufficient either to fully or to partially soften the metal in readiness for rolling. Annealing helps to strengthen the metal.
To cool glass by reintroducing a completed object into an auxiliary part of the glass furnace and slowly cooling the object so that any strain created in the glass during the forming process may be released. The critical area for cooling is 1000-800 degrees.
A heat-treating process in which the steel is heated to some elevated temperature, usually at or near the critical range and held at this temperature for a period of time, then cooled, usually at a slow rate. Annealing is employed (1) to soften steel for secondary machining or forming processes; (2) to alter ductility, toughness, electrical or magnetic characteristics or other physical properties; (3) to refine the crystal structure; (4) to produce grain reorientation; or (5) to relieve stresses and hardness resulting from weaving (cold working).
A heating and cooling of steel in the solid state, usually requiring gradual cooling. To heat aluminum to 640°F (338°C) and then cool it to 450°F (232°C) to soften it to make it ductile.
The process of hardening glass, pottery, or metal by alternately heating and pounding it.
a heating and cooling process designed to reduce stress.
Process which improves the machineability of metals by heating and allowing them to cool slowly, which removes stress and softens the material.
A process, consisting of heating to and holding at a suitable temperature followed by cooling at a suitable rate, used primarily to soften metallic materials, such as steel. This process also simultaneously produces desired changes in microstructure, as in other properties, such as improvement of mechanical or electrical properties, increase in stability in dimensions, facilitation of cold work, and more. See batch anneal.