Stamping parts are mainly formed by stamping metal or non-metallic sheets with the pressure of a press and through a stamping die. They are widely used, such as car body, chassis, fuel tank, radiator sheet, boiler drum, container shell, motor, electrical appliance iron core silicon steel sheet, etc. Instruments, household appliances, bicycles, office machinery, household utensils and other products also have a large number of stamping parts. Today’s guide will let you know more about stamping parts.
What are stampings?
Stamping parts are mainly products formed by stamping metal or non-metallic sheet metal through stamping die with the help of the pressure of the press. Due to the use of precision die, the precision of the workpiece can reach the micron level, and the repetition precision is high, the specification is consistent, and the holes and sockets, bosses, etc. can be punched.
What basic conditions should the designed stamping parts meet?
No matter where the stamping parts designed and produced are used, the stamping parts must be designed in strict accordance with the corresponding principles, so as to achieve energy conservation, high efficiency and other purposes on the premise of ensuring product quality. First of all, the designed stamping parts must be conducive to improving the utilization rate of metal materials, reducing the varieties and specifications of materials, and reducing the consumption of materials as much as possible. If allowed, the stamping parts can be made of cheap materials, so that the parts can be blanking without waste and with less waste as far as possible. Secondly, the designed stamping parts must be simple in shape and reasonable in structure, which is conducive to simplifying the mold structure and the number of processes. In this way, the processing of the whole part can be completed with the least and simplest stamping process, and other methods of processing can be reduced. It is also conducive to stamping operations, and it is convenient to organize and realize mechanized and automatic production, so as to improve labor productivity.
Of course, the designed stamping parts must also meet the product use and technical performance, and be easy to assemble and repair. At the same time, Yoah is conducive to the use of existing equipment, process equipment and process flow to process them as much as possible, and is conducive to extending the service life of the die. In addition, the designed stamping parts shall, under the condition that they can be used normally, lower the requirements for dimension accuracy grade and surface roughness grade as far as possible, which is conducive to product interchange, reducing waste products, ensuring stable product quality, reducing its cost and improving its value.
What technical measures must be met during metal stamping?
No matter in terms of operation technology or safety, the metal stamping process should meet the corresponding requirements, starting from its technical measures. You should know that the so-called metal stamping is a process of deforming or breaking iron, aluminum, copper and other plates and dissimilar materials to a certain shape and size by using a punch and a mold. It can be seen that there are some similarities between metal stamping and sheet metal forming, but there are slight differences, because sheet metal forming is carried out with sheet metal, thin-walled tube, thin profile, etc. as raw materials, in this case, the deformation in the direction of thick plate is generally not considered. When designing metal stamping parts, the structure shall be easy to operate, safe and reliable. In the process of metal stamping, as long as the workers’ hands, arms, heads and other parts stretch into the danger area, the stamping work can be basically completed successfully. Of course, the commissioning, installation, repair, handling and storage of equipment are also very important, focusing on convenience and safety.
As a metal stamping part, it is bound to have sufficient strength, so the material selection is reasonable; At the same time, the metal stampings formed at the same time shall not contact with the external convex and concave products to avoid damage. When designing metal stampings, the location for installing mechanized devices shall be considered, so that mechanized and automatic devices can replace manual operation when necessary. In the process of metal stamping, the structures of the ejector, pusher and stripper used must be reliable, and other aspects cannot cause potential safety hazards to the operator. With the cooperation of various requirements, the metal stamping can be successfully completed, and the metal stamping parts with excellent quality can be obtained.
Stamping performance and process requirements of precision stamping materials
Stamping parts can be divided into ordinary type and precision type, of which precision stamping parts are manufactured by a series of stamping processes such as stamping, extrusion, rolling, welding, cutting, etc. It can be seen that the manufacturing of precision stamping parts is difficult, because in order to meet the production requirements and achieve good product forming effect, there are high requirements for stamping materials. As the stamping material of precision stamping parts, it must have good stamping performance first, so that it is easier to obtain high-quality and high-precision precision stamping parts, which is convenient for production and processing. At the same time, the limit deformation degree and the total limit deformation degree of a material stamping process should be large enough to improve production efficiency.
Of course, stamping materials can not cause greater loss and wear to precision stamping parts and precision stamping dies, otherwise, waste products will easily occur and the output of precision stamping parts will be affected. In addition to the above stamping properties, the stamping materials of precision stamping parts shall also meet the corresponding process requirements. For example, the thickness tolerance of materials used for stamping precision stamping parts shall comply with national standards. Different die clearances are applicable to materials of different thicknesses. If the thickness tolerance of materials is too large, it will not only directly affect the quality of stamping parts, but also may cause damage to the dies or presses. In addition, it shall have high surface quality, clean and flat surface, free of defects such as oxidized skin, cracks, rust spots, scratches, delamination, etc., so that it is not easy to crack or scratch the mold during processing, and the surface quality of the stamping parts obtained is also good.
Good plasticity is also one of the process requirements of precision stamping materials, including high elongation and reduction of area, low yield and high tensile strength, high plasticity, large deformation degree, etc., which is conducive to the stability of the stamping process and the uniformity of deformation, and improves the precision of precision stamping forming dimensions. In addition, it is also necessary to measure the adaptability of precision stamping materials to mechanical joint and continuous processing, which will also affect the performance and quality of stamping parts.
Final Thoughts
Stamping parts are widely used. Therefore, many companies need to purchase stamping parts. If they do not know enough about stamping parts, they will cause irreparable losses to enterprises. Through this guide, you will have a deep understanding of the processing process and technology of stamping parts, and make the best judgment on purchasing stamping parts. Tenral is a stamping parts manufacturer from China, Many of the views in this article were obtained through interviewing their engineers, hoping to make everyone pay attention to the selection of stamping parts.
