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Main Features and Common Problems of Precision Metal Stamping Parts
Release time:2023-01-03Views:963

In daily life, many of the products we see are precision metal stamping parts, which are found on airplanes and cars. Precision metal stamping parts are widely used in various platforms of our lives. What are the features and common problems of metal stamping parts?



The following are the main features of precision metal stamping parts:


1. Metal stamping parts are made by stamping on the assumption that material consumption is less, and the parts are light in weight and with good rigid. After plastic deformation of sheet metal, the internal layout of metal is improved and the strength of stamping parts is improved.


2. The size and module of metal stamping parts are uniform, with high dimensional accuracy and good exchange performance. It meets the requirements of common equipment and applications without further processing.


3. In the stamping process, since the material surface is not damaged, the surface is bright and beautiful, and the surface quality is good, which is a kind of surface painting.



Common questions and reasons for precision metal stamping parts processing:


1. Burr: incomplete residual materials are left during punching or chamfering, and burrs will appear at the lower part of the steel plate cutting surface. When the burr height exceeds 0.2mm, the iron powder will damage the mold, causing concave convex.

2. Scratches: The main reason for scratches is that sharp scratches or metal dust on the mold fall into the die. The solution is to polish the scratches on the mold and remove metal dust.

3. Bottom crack: The main reason for the bottom crack of the part is the poor plasticity of the material or the die blank holder is too tight. The solution is to replace the material with good plasticity or loosen the blank holder.

4. Side wall wrinkling: The main reason for the side wall wrinkling of parts is that the material thickness is not enough (thinner than the allowable thickness) or the placement preference of high and low molds, resulting in a large gap on one side and a small gap on the other side. This means that the material needs to be replaced and the die needs to be readjusted in time.



Design standard for precision metal stamping parts:

The designed stampings shall meet the application and technical performance of the product, so as to facilitate equipment and maintenance. The design of stamping parts shall help to improve the operation rate of metal materials, reduce the types and specifications of materials, and reduce the consumption of materials as much as possible. If conditions permit, use low-cost materials, so that the parts can be punched out with cost saving. The designed stamping parts must have reasonable layout and simple modeling, which is conducive to simplifying the mold layout and the number of processes. That is, all parts are processed by simple stamping process, which reduces the application of other technologies, facilitates stamping operations and mechanization. Although the designed stamping parts should reduce the dimension accuracy level and surface roughness level, it is conducive to product exchange, reduce the generation of garbage, and ensure the stability of product quality. The designed stamping parts shall be as conducive to the use of existing equipment, processing equipment and process flow as possible, and be conducive to extending the service life of the stamping die.


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