Precision hardware mold processing process:

1. Preparation of mould embryo: Most of the embryo is metal. From the perspective of forging processing, the raw materials used are usually bar, plate and pipe. The operator has more rough shape and set size for selection.

2, rough processing: take milling as an example for parts rough processing, as long as the outline of the parts and the island can be generated processing path. It can automatically add arc at the sharp corners of tool path to ensure the smoothness of tool path and meet the requirements of high-speed machining. It is mainly used for milling planes and grooves. You can choose multi-contour, multi-island treatment.

3. Semi-finishing: Finish the processing of the secondary surface and prepare for the processing of the main surface.

4, heat treatment: the material in the medium heating, heat preservation, cooling, by changing the structure of the material, these processes are connected with each other, uninterruptible.

5, finish: finish the work allowance is less than rough processing, choose good tools, control the speed and speed, pay attention to the size of the material and the appearance of gloss.

6, cavity surface treatment: mold design of different surface treatment methods, you can change the chemical composition of the surface of the mold, organization, performance, greatly improve and enhance the surface performance of the mold. For example, hardness, wear resistance, friction performance, demoulding performance, heat insulation performance, high temperature resistance and corrosion resistance.

7. Mold assembly: There are two forms of assembly, fixed assembly and mobile assembly. Different methods of assembly are selected for different mass production.

Factors affecting the service life of precision die processing:

First, the main factor is corrosion failure. When the mold hardness is high, the corrosion resistance is good, if the mold hardness is not good, the corrosion resistance is not good.

Two, thermal fatigue crack damage failure, injection molding, mold under the action of cold and heat repeatedly formed, the formation of surface and internal deformation, involving repeated cyclic thermal stress, tissue damage and loss of toughness, resulting in microcracks, and continue to expand, once the crack expansion, metal melting, repeated mechanical stress accelerated crack expansion. Therefore, on the one hand, the mold should be preheated. In addition, in the production process, the mold should be kept in the corresponding working temperature range to avoid early cracking failure. At the same time, the precision mold processing before production and internal reasons do not appear problems. Due to the actual production, the mold failure is mainly thermal fatigue cracking failure.

Three, fracture structure failure, under the action of pressure, the mold will be in the development of weak crack initiation, precision mold processing forming surface marking traces or electrical processing traces have not been polished, or a molding at the clear Angle will appear some fine cracks, when there is a brittle phase or grain boundary coarse, it is very easy to fracture. Therefore, all the scratches and electrical machining marks on the working surface of the mold should be polished, even if it is in the main part of the whole pouring operation, it should also be polished.