Structural Design Requirements for Precision Electronic Stamping Parts
Release time:
2022-08-08
Precision electronic stamping parts are produced by fine blanking process. The fine blanking process is a material processing method developed on the basis of ordinary stamping process. It is to improve the guiding accuracy, reduce the convex gap of the female die, increase the reverse pressure and V-shaped ring edge and other process measures, resulting in strong pressure under three-way compressive stress state. Precision stamping or precision stamping combined with other forming processes to obtain precision stamping parts.
Precision electronic stamping partsIt is to use fine blanking process to produce workpieces. Fine blanking process is a material processing method developed on the basis of ordinary stamping process. It is to improve the guiding accuracy, reduce the convex gap of the female die, increase the reverse pressure and V-shaped ring edge and other process measures, resulting in strong pressure under the three-way compressive stress state. Precision stamping or precision stamping is combined with other forming processes to obtain precision stamping parts.
Precision stamping and ordinary stamping is not the same, precision stamping parts of the aperture and hole edge distance of the small value will be less than ordinary stamping parts, so in the design of precision stamping parts, the structural design is a certain requirement.
When designing the structure of precision stamping parts, the shape of the workpiece and the inner hole should be rounded, and sharp corners are not allowed. The allowable fillet radius depends on the thickness of the material. The punch diameter, groove width and margin of the workpiece should not be too small. In precision stamping gears, the pitch and tooth width of the gear cannot be less than 0.6T, and the top and root of the tooth profile should be rounded, not acute. The contour shape of the outer edge of precision stamping parts should be as smooth as possible without sudden changes. When the design symbol or mark is pressed on the surface of the workpiece, the depth of cut shall not exceed 0.25T.
The production of precision electronic stamping parts is generally based on precision blanking with strong blanking force. The geometric shape, dimensional tolerance, shape position tolerance and shear surface quality of fine blanking workpieces are much higher than those of ordinary blanking workpieces. Precision stamping technology can be used to process precision stamping parts of various sizes, with complex shapes and high precision, and can be used in automotive, electronics, medical and other industries. In these industries, precision electronic stamping parts are an important part of product assembly. In the production process of precision stamping parts, inaccurate precision will affect the use of products, so what factors will affect the accuracy of precision electronic stamping parts?
1, material, material is the main factor affecting the accuracy of precision stamping parts. If the raw materials of precision stamping parts are poor, it will not be able to meet the needs of high-precision products, and the problem of unqualified precision will occur in production.
2. Mold, mold is a tool to ensure the shape and dimensional accuracy of precision stamping parts. Its design and manufacturing level is closely related to the precision of precision stamping parts. If the accuracy and installation of the mold are unqualified, the requirements of the mold cannot be met during the processing, which brings a lot of trouble to the staff and leads to unqualified product accuracy.
3. Process. In the production process of precision stamping parts, if the correct position or frequency is not fed, it will also cause product accuracy problems and cause product quality to decline.
Die is an important equipment for stamping parts processing, and the size and accuracy of the die determine the size and accuracy of the stamping parts. Stamping parts surface quality, dimensional tolerance, stamping parts processing factory production efficiency and economic benefits are closely related to the structure and design of the mold;
Stamping parts processing equipment mainly includes mechanical presses and hydraulic presses. In the production of a large number of stamping parts, should try to use high-speed press or multi-station automatic press. In small batch production, especially in the production of large plate stamping parts, hydraulic presses are mostly used.
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