Characteristics of die casting process

The molds used in die casting are usually made of alloys that are stronger than the parts being machined, a process somewhat similar to injection molding. The cost of casting equipment and mold is generally relatively high, so it is not suitable for processing small batch parts. However, because the die casting method is relatively simple to process parts, generally only four major steps are required, and the single cost increment is very low, so it is very suitable for the manufacture of large quantities of parts. In addition, the surface of die casting is more flat than that of other casting technologies, and has higher dimensional consistency. Therefore, die casting is widely used among all casting processes.

Common features of die parts design

In the mold design output, three-dimensional modeling is used to describe the mold structure, and as the basis of CNC machining, and two-dimensional drawings are used for parts processing technology design basis. Therefore, the design of die parts requires the output of two-dimensional drawings of die parts. Die parts processing technology design, not only in line with the general characteristics of mechanical processing technology design, but also must according to their own special requirements, make flexible adjustment. Its common characteristics include the following aspects:

Identification and determination of benchmarks

The design datum of die parts includes two aspects: part datum and processing datum. Part datum describes the assembly surface of a part, and the processing datum should generally coincide with the part datum.