Characteristics of the die casting process
The molds used in die casting processes are usually made of alloy materials that are stronger than the processed parts. This process is somewhat similar to injection molding. The cost of casting equipment and molds is generally relatively high, so it is not suitable for processing small batch parts. However, due to the relatively simple use of die casting methods for processing components, generally only four main steps are required, and the individual cost increment is very low, so it is very suitable for the manufacture of large quantities of components. In addition, die-casting is more flat than other casting techniques and has a higher dimensional consistency. Therefore, die-casting is widely used in all casting techniques.
General characteristics of die parts design
In the die design output, 3D modeling is used to describe the mold structure and as the basis for NC machining, and 2D drawings are the basis for the part processing process design. Therefore, the design of the mold parts, the output is required to be a two-dimensional drawing of the mold parts. The process design of the mould parts not only conforms to the general characteristics of the mechanical process design, but also must make flexible adjustment according to its own special requirements. Its common features include the following aspects:
Identification and determination of baselines
The design benchmark of die parts includes two aspects: parts Benchmark and machining Benchmark. The part benchmark describes the assembly surface of the part, and the processing benchmark should generally coincide with the part Benchmark.