- Die casting is a metal casting process

Time:

2023-04-20

Die casting is a metal casting process characterized by the application of high pressure to molten metal using the cavity of a mold. Molds are usually machined from stronger alloys, a process somewhat similar to injection molding . Most die castings are ferrous, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, a cold chamber die casting machine or a hot chamber die casting machine is used.

The cost of casting equipment and molds is high, so the die casting process is generally only used for mass production of a large number of products. Manufacturing die-cast parts is relatively easy, generally requiring only four major steps with low incremental cost per item. Die casting is especially suitable for manufacturing a large number of small and medium-sized castings, so die casting is the most widely used of various casting processes. Compared with other casting technologies, die casting has a flatter surface and higher dimensional consistency.

On the basis of the traditional die-casting process, several improved processes have been born, including the non-porous die-casting process that reduces casting defects and eliminates pores. It is mainly used for zinc processing, which can reduce waste and increase yield by direct injection process. There are also new die-casting processes such as precision-speed precision die-casting technology invented by General Dynamics and semi-solid die-casting.

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- Relation between die casting manufacturing and die casting machine and die casting release agent