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Die casting is a manufacturing process that can produce geometrically complex metal parts through the use of reusable molds, called dies.

The die casting process involves the use of a furnace, metal, die casting machine, and die. The metal, typically a non-ferrous alloy such as sluminum or zinc, is melted in the furnace and then injected into the dies in the die casting machine. There are two main types of die casting machines --- hot chamber machines (which is used for alloys with low melting temperature, such as zinc) and cold chamber machines (which is used for alloys with high melting temperatures, such as aluminum). However, in both machines, after the molten metal is injected into the dies, it rapidly cools and solidifies into the final part, called the casting.

The casting that are created in this process can vary greatly in size and weight, ranging from a couple ounces to 100 punds. One common application of die cast parts are housings --- thin-walled enclosures, often requiring many ribs and bosses on the interior.  metal housings fro a variety of appliances and equipment are often die cast. Several automobile components are also manufactured using die casting, including pistons, cylinder heads, and engine blocks. Other common die cast parts include propellers, gears, bushings, pumps, and valves.