Die casting is the process of casting molten metal into […]
Die casting is the process of casting molten metal into the cavity at high pressure. The metal is hardened to obtain the desired shape. Recently, plastic molded parts replace die casting because they are cheaper and lighter than die castings. Can be used for cold or hot chamber process for die casting.
Die casting is a wide range of non-expendable technologies in which metals are forced into the mold cavity under high pressure. Die molds called molds can be reused to produce castings of various sizes, shapes and wall thicknesses. The cavity design has a complex design that produces complex shapes with precision, surface finish and attraction.
In the early stages of casting, only low pressure injection was used, but today's high pressure casting techniques such as extrusion casting and semi-solid die casting were used for casting more than 4500 psi. Initially, only tin lead is death caste, but now magnesium, copper and other alloys are also used this very popular casting process.
In this process, the molten metal or other material is forced into the cavity of the steel mold under high pressure. The mold is made of alloy tool steel made of two parts - the fuser half mold and the ejector half mold. The mold or mold is made to have the impression of the part to be cast. There are four types of molds: single chamber produces a component, multiple cavities produce multiple identical parts, and unit molds produce different parts at a time, and the combination mold can produce several different components.
The molten metal is injected into the mold at high pressure and high speed, which helps to produce as smooth and accurate castings as the original mold. Keep the pressure on the mold until the molten iron solidifies. When the metal is hardened, open the mold to remove the castings.
There are several changes to the basic process that can be used to produce castings for a particular application. These include: Squeeze Casting - Melt alloys are cast under high pressure without turbulence and gas entrainment to produce high quality, dense, heat treatable parts.
In modern times, the use of precision die-casting machine to ensure the consistency of quality. Each of the machined die castings has a different method of pouring the molten powder into the mold. Automated for lubrication of the mold, the metal into the room and so on. Two processes, called hot and cold chamber methods, are used for die casting.
Die casting is best suited for casting medium parts with complex details. Die casting is used to manufacture automobile, toy, sink faucet parts, connector shell, gear and other consumer goods, industrial products, the largest casting technology. Most die castings are made of nonferrous metals such as aluminum, magnesium and so on