Material selection, analysis and application of metal stamping parts
Firstly, the material selection of stamping parts. Stamping parts are a small part among many mechanical components, but they are widely used as such ordinary parts. It is indispensable in many mechanical industries, and in China, this part is mainly concentrated in large factories such as automobile manufacturers, tractor manufacturers, and aircraft manufacturers. Stamping parts are used in the automotive industry because many parts of the car require stamping. Stamping parts are not only used in the automotive industry, but also frequently in other industries such as electrical parts stamping factories, daily necessities stamping factories, household appliance parts stamping factories, special stamping enterprises, etc. Since metal stamping parts; With such a wide range of applications, how to choose the material for stamping parts? Of course, good materials can make good stamping parts. The first step in making stamped parts is definitely to use a mold. Generally, the mold used for stamped parts is either a spring-loaded discharge plate or a fixed discharge plate, depending on the magnitude of the discharge force, with material thickness being the main consideration factor. The formation of stamped parts also requires multiple processing procedures, including punching, bending, deep drawing, forming, finishing, and other processes. The materials used for processing stamped parts are mainly hot-rolled or cold-rolled metal sheet and strip materials. Stamping parts can only be made with a clear understanding of how to choose the material of the stamping parts and where they are applied. Secondly, analysis and application of automotive stamping parts: 1. Reasonable setting of process holes. To deal with problems caused by materials, manufacturing personnel can choose appropriate positions to punch process holes when stretching the blank, or punch process holes at variable positions during stretching. The process holes produced by stamping should be of appropriate size, neither too large nor too small. If the process hole is too large, the stamped part; Easy to cause flipping holes; If the hole is too small, the top of the process part cannot be fully filled, resulting in the inability of material to enter the part, ultimately leading to necking around the top process hole. 2. Reasonable process supplementation in automotive parts provides a foundation for qualified parts. During the manufacturing process, material supplementation is carried out under the premise of stamping parts, which not only has an important relationship with the forming of blank stretched parts, but also has an inseparable connection with the subsequent related processes. During the manufacturing process of automotive parts, if the stretched parts have large gaps, significant losses may occur due to the inability of the blank to be replenished with external materials during stretching, resulting in non-conforming parts. In order to reduce the occurrence of this phenomenon, the automobile manufacturing industry has conducted relevant analysis and research, and decided to reserve the material resources that need to be supplemented in the blank pre forming stage to help timely supplement the blanks with gaps. 3. The improvement of automotive molds is a common part in automotive manufacturing. If both sides of the part need to be modified, for the convenience of process operation, the production can be easily carried out by placing the parts. In general, the construction and trimming method of two side oblique wedges is commonly used for automotive parts molds.
