How to distinguish the difference between special-shaped parts and castings?

A kind of material made by punching the plates, strips or pipes and other profiles is called profiled parts, while castings are metal pieces with certain shape, size and performance obtained by pouring molten metal into the casting mold and solidification. What are the differences between the two?
1. There is a difference between hot and cold shaped parts, and cold shaped parts formed by production do not need to be re cut or micro processed; However, for the accuracy and surface state of hot stamping parts or stamping parts with high specifications, the cutting amount of the machinist is relatively small.
2. The classification of special-shaped parts is carried out according to the production process. Most of them can be divided into separation or forming. The separation process here refers to blanking. The main reason for this processing process is to ensure that the special-shaped parts have the corresponding contour for the corresponding separation, and also to ensure the quality of the separation section.
3. The special-shaped parts are produced in an efficient way, so their own advantages are beyond the reach of castings.
VI The production efficiency of special-shaped parts is usually high, and the cost for production is also low. The advantages mentioned in this are also important use advantages of special-shaped parts.
4. Compared with castings, the advantages of profiled parts are thin, light, strong and even. The outstanding feature of profiled parts is that no castings can achieve the effect. This feature of profiled parts can improve their own rigidity.
5. In terms of accuracy, there are differences between special-shaped parts and castings: special-shaped parts belong to a kind of relatively precise mold making, and the accuracy achieved can reach micrometers. If it is some repetitive special-shaped parts with relatively high accuracy, we can process holes and sockets or bosses.