Main features and common problems of automobile hardware stamping parts
Release time:
2022-01-12
In daily life, many of the products we see are automotive hardware stamping parts, from airplanes, cars to pins. Automotive hardware stamping parts are widely used in all areas of our lives.
In daily life, many of the products we see are automotive hardware stamping parts, from airplanes, cars to pins. Automotive hardware stamping parts are widely used in all areas of our lives. What are the characteristics and common problems of metal stamping parts? Xiaobian will take you to have a look!
The main features of automotive hardware stamping parts are as follows:1Metal stamping parts are stamped under the premise of low material consumption, and their parts are light in weight and good in rigidity. After the plastic deformation of the sheet metal, the internal structure of the metal is improved, so that the strength of the stamping parts is improved.2The size of the metal stamping parts is uniform with the module, the size accuracy is high, and the interchangeability is good. General assembly and use requirements can be met without further processing.3In the stamping process, because the surface of the material is not damaged, the appearance is bright and beautiful, and the surface quality is good, which provides convenient conditions for surface painting, electroplating, phosphating and other surface treatments.
Common problems and causes of automobile hardware stamping parts processing:13. Burr: incomplete surplus material is left during punching or corner cutting, and burrs are generated at the lower part of the cut surface of the steel plate. When the burr height is greater0.2Millimeters, the resulting iron powder will damage the mold, resulting in convex and concave.2Scratches: The main reason for scratches on parts is sharp scratches on the mold or metal dust falling into the mold. Preventive measures are to polish the scratches on the mold and remove metal dust.32. Bottom cracking: The main reason for the bottom cracking of the part is that the material has poor plasticity or the mold crimping ring is too tight. The preventive measure is to replace the material with better plasticity or loosen the crimping ring.4Side wall wrinkling: The main reason for the side wall wrinkling of parts is that the material thickness is not enough(Thinner than small allowable thickness)Or eccentricity occurs when the upper and lower dies are installed, resulting in a large gap on one side and a small gap on the other side. Preventive measures are to immediately replace the material, re-adjust the mold.
Automotive hardware stamping parts design principles: the design of stamping parts need to meet the product use and technical performance, easy to assemble and repair.TheThe designed stamping parts need to help improve the utilization rate of metal materials, reduce the variety and specifications of materials, and reduce the consumption of materials as much as possible. If allowed, use low-cost materials so that the parts can be stamped out with as little or no waste as possible. Stamping parts must be designed with reasonable structure and simple appearance, which is conducive to simplifying the mold structure and the number of processes, that is, to complete the processing of the entire part with fewer and simple stamping processes, to reduce the use of other methods of processing, to facilitate stamping operations, to facilitate the realization of mechanization, automated production, improve labor productivity. The design of the stamping parts should minimize the dimensional accuracy level and surface roughness level, which is conducive to product exchange, reduce waste, and ensure stable product quality. The design of the stamping parts should be as far as possible to facilitate the use of existing equipment, process equipment and process for processing, is conducive to extending the service life of the stamping die.
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