In fact, the quality of molds has a very important relationship with the processing of molds. The so-called precision molds generally refer to high-precision molds and molding molds with complex structures and processes. What should be paid attention to in the processing of precision molds? Let's follow Xiaobian to have a look.

Precision die processing

1. High processing accuracy requirements: a pair of molds is generally composed of concave mold, punch and mold base, and some may also be multi piece modules. Therefore, the combination of upper and lower dies, the combination of insert and cavity and the combination between modules all require high machining accuracy. The dimensional accuracy of precision molds often reaches μ Class M.

2. Complex shape and surface: the surface of some products, such as automobile panels, aircraft parts, toys and household appliances, is composed of a variety of curved surfaces. Therefore, the mold cavity surface is very complex. Some surfaces must be treated mathematically.

3. Small batch: the production of molds is not mass production. In many cases, only one pair is produced.

4. Multiple processes: milling, boring, drilling, reaming, tapping and other processes are always used in die processing.

5. Repetitive production molds have a service life: when the service life of a pair of molds exceeds its service life, it is necessary to replace new molds, so the production of molds is often repetitive.

6. There are neither drawings nor data in the production of profiling processing mold, and profiling processing shall be carried out according to the real object. This requires high imitation accuracy and no deformation.

7. The mold material is excellent and has high hardness. The main materials of the mold are mostly made of high-quality alloy steel, especially the high-life mold, which is often made of ledeburite steel such as Crl2 and CrWMn.

The above is about the seven aspects that need to be paid attention to in the process of precision mold processing, so that we can produce and manufacture high-quality molds. At the same time, the selection of machine tools should meet the processing requirements as much as possible, such as strong function of NC system, high precision of machine tools, good rigidity, good thermal stability, profiling function, etc.