The main purpose of heat treatment services is to reduce brittleness, improve machinability, and also to increase corrosion and wear resistance. It is used in automobiles, aerospace, and construction industries.
FREMONT, CA: A metal is heated or cooled in a tightly controlled environment to manipulate its physical properties, such as malleability, durability, fabricability, hardness, and strength. Aerospace, automotive, computer, and heavy equipment industries all require heat-treated metals. The versatility and applicability of metal parts can be improved by heat treating them, such as screws or engine brackets.
The heat treatment process consists of three steps. The metal must first be heated to the appropriate temperature to bring about the desired change. The temperature is then maintained until the metal is evenly heated. After the heat source has been removed, the metal is allowed to cool completely.
In addition to steel, other metals can be heat treated, such as
The aluminum alloy
The bronze medal
The cast iron
The copper element
The plastics industry
Problems associated with heat treatment are:
Frailty: Heat-treated metals can become brittle, making them more prone to breaking and splintering. When heat is applied too much or improperly, brittleness occurs. The metal is tempered for a shorter period of time or at a lower temperature to prevent brittleness.
The warping of heat treatment and other deformations may occur if temperatures are uneven or unregulated or if the metal is improperly prepared. Verifying the metal's quality before starting the process and maintaining and lowering the metal's temperature during heat treatment can prevent warping.
Fractures cooling: In most cases, cooling fractures are caused by rapid cooling of the metal. In addition, all tools are warmed before contact with the metal being treated.
Heat treatment types: Some of the heat treatment types are as follows
Tempering/Quenching: It involves the gradual heating and rapid cooling of brittle metals, such as steel, to change their strength, hardness, and ductility, often increasing hardness to 600 BHN or more. In tempering and quenching, metals are heated in a furnace or other apparatus and cooled with oil or water. Among the applications of quenched and tempered metals are tractor buckets, trailers, storage tanks, and more.
Relieving stress: Metals form internal stresses during machining and cutting processes, which can be minimized or removed through stress relieving. Normally applied after rough machining, stress relieving involves heating metal in a furnace with protective gas to prevent oxidation, soaking it for two hours, and then slowly air cooling it. Among the applications of stress-relieved metals are cutlery, gears, tools, crankshafts, etc.