Formation Technology of Special Stamping
Special stamping technology is a technology used to shape metal parts or components with complex shapes and configurations, including formation technology such as bending, drawing, necking and flanging. It is due to the development of the automobile industry, aerospace industry, aircraft industry and other highly mechanical parts industries that this technology is widely used. In general, special stamping technology generally includes the following aspects:
1. Material selection: According to the characteristics of workpiece materials and the requirements of processing accuracy, select special steels and other materials with good stretch properties such as stainless steel, spring steel, aluminum alloy, etc. All materials must meet the surface hardness requirements and the machinability requirements of the workpiece materials.
2. Tool selection: According to the shapes, size, and features of stamping parts, it is necessary to select different forming dies and draw dies to ensure its surface quality, precision and forming effect.
3. Process design: According to the material characteristics, forming process and customer requirements, the stamping process optimization route is determined. It is necessary to calculate the size and position accuracy of the die gap and part size, choose the reasonable stroke sequence, select the reasonable lubrication technology and forming equipment, and analyze the stability of the forming process.
4. Forming production: According to the requirements of customer drawings, adjust the forming equipments and tools reasonably, and make forming experiments to ensure the dimensional accuracy and surface quality of the parts meet the requirements of customer drawings.
5. Quality inspection: Perform 100% quality inspection and statistical quality inspection on all parts produced, check and record the size and surface quality of stamped parts according to customer drawings, and non-conforming parts should be detected and reworked.
In the application of special stamping technology, the forming accuracy of stamped parts directly affects the dimensional accuracy and assembly quality of parts. Therefore, more attention should be paid to the selection of forming materials and the design and production of the forming process. In addition, in the quality inspection process of special stamping, dimensional and surface quality inspection should be carried out in strict accordance with the requirements of customer drawings, and any non-compliant parts tested should be reworked or replaced.
The application of special stamping technology is broad, which can meet the needs of many industries such as automobiles, chain bicycles, electronic communications, aerospace and defense. In short, the application of special stamping technology plays an important role in the realization of miniaturization of parts, improvement of accuracy and the enhancement of wear resistance and fatigue resistance.
