Why can precision die forging achieve high precision?

Precision die forging refers to the process of forging metal materials using molds. Compared with the traditional forging process, it has the advantages of better precision and quality, and can manufacture metal parts with complex shape, high precision and smooth surface. The reason why this process can achieve high precision is mainly due to the following aspects:

First, the mold design precision is high

Precision die forging needs to be completed by the mold, so the design accuracy of the mold is an important factor affecting the accuracy of the forging. The die of precision forging is usually designed by the CAD/CAM system, and the design accuracy is high, which can ensure the dimensional accuracy, shape and position accuracy, surface quality and material utilization ratio of the forging. The mold design not only includes the design of geometric shapes, but also involves many factors such as materials, hardness, strength, heat treatment, etc. The designer needs to take into account various possible adverse situations, so as to design a mold with high accuracy, high efficiency and long life.

Second, the forging process is highly controllable

The forging process of precision die forging is affected by various factors, such as forging temperature, pressure, speed, etc. The control of these factors is very important to ensure the forging accuracy. In the forging process of precision die forging, the change of temperature will make the plasticity of the material change, the adjustment of pressure and speed can control the deformation and flow direction of the material, and the design of the mold can control the shape and position of the material. Through the real-time monitoring and adjustment of the factors in the process of precision die forging, the high controllability of the forging process can be ensured, so that the high-precision forging effect can be achieved.

Third, material selection science

The materials involved in precision forging are usually high-strength and high-hardness metal materials, such as titanium alloy, copper, aluminum alloy and so on. These materials not only have good physical and mechanical properties, but also the deformation characteristics in the forging process are very suitable for precision forging. In terms of material selection, it is necessary to scientifically select materials according to the design requirements and the characteristics of the forging process to ensure the accuracy, toughness and corrosion resistance of the forging.

4. Meticulous processing technology

Precision die forging need to go through a number of strict processing processes, such as preforming, rough forging, precision forging, annealing, polishing, etc., the details of each process will affect the accuracy of the forging. The preforming process is mainly to reduce the deformation of the material when forging, the rough forging process is mainly to process the raw edge and crack of the forging, the precision forging process is an important processing process, through the aid of the mold, the forging can get accurate shape and size, but also to improve the surface finish of the forging. The annealing process is to eliminate the internal stress in the forging process and to fine the crystalline structure, and the polishing process is to make the surface of the forging smooth and defect free.