What are the characteristics of mold processing

1. High machining accuracy requirements. A mold usually consists of a concave mold, a convex mold, and a mold base, and some may also be a multi piece assembly module. Therefore, the combination of upper and lower molds, the combination of inserts and cavities, and the assembly between modules all require high machining accuracy. The dimensional accuracy of precision molds often reaches μ M-level.
2. Some products, such as automotive panels, aircraft parts, toys, and household appliances, have complex surface shapes that are composed of multiple curved surfaces. Therefore, the mold cavity surface is very complex. Some surfaces must be processed using mathematical calculations.
Mold processing
3. The production of small molds in bulk is not mass production, and in many cases, only one batch is produced.
4. In multi process mold processing, various processes such as milling, boring, drilling, reaming, and threading are always used.
The use of repetitive production molds has a lifespan. When a mold exceeds its lifespan, it needs to be replaced with a new mold, so the production of the mold often has repeatability.
6. In the production of profiling processing molds, there are sometimes no drawings or data, and profiling processing needs to be carried out based on the actual object. This requires high imitation accuracy and no deformation.
7. The die material is excellent. The main material of the die with high hardness is mostly made of high-quality alloy steel, especially the die with long life, which is often made of Ledeburite steel such as Crl2 and CrWMn. This type of steel has strict requirements from rough forging, processing to heat treatment. Therefore, the compilation of processing technology cannot be ignored, and heat treatment deformation is also a problem that needs to be taken seriously in processing. Based on the above many characteristics, it is necessary to meet the processing requirements as much as possible when selecting machine tools. For example, CNC systems need to have strong functionality, high machine tool accuracy, good rigidity, good thermal stability, and have profiling functions.