Aluminium Die Casting Companies In India
Aluminum die-castings differ from other types of aluminum castings because of the difference in the type of mold used and the process by which the molten metal is delivered to the die. Whereas casting molds may be made of many different materials—including sand, plaster, iron, steel, and polystyrene—dies are made only of metal, most frequently steel. In die-casting, the die is filled with molten metal that is forced into it under pressure, unlike other casting processes where liquid metal is poured by gravity. Die-casting techniques are used to produce greater volumes of cast products than other types of casting.
As the die-casting industry entered the 1990s, aluminum remained in the top position. Its chemical and physical properties offered many advantages to industrial users. For example, aluminum die-castings weighed about 60 percent less than identical iron products, resisted corrosion, and were stronger than permanent mold or sand castings. Automated production methods produced high quantities at low per-unit costs. By the late 1990s, the automotive industry had discovered the benefits of aluminum and consequently became the largest market for aluminum castings, buying 25 percent of all aluminum produced and nearly one-half of all aluminum diecastings produced.