How to choose metal stamping materials

With the development of industrial technology, metal stamping has become an important part of the parts manufacturing industry, stamping products have also been applied to various fields, the demand is increasing, and the requirements for the processing of precision metal stamping parts are getting higher and higher. The precise author of this article will show you how to choose suitable metal stamping materials. There are three main stamping processes: punching, bending, and stretching. Different processes have different requirements for the plate. The selection of materials should also consider the selection of the plate according to the general shape of the product and the processing technology. 1. Blanking requires that the plate should have enough plasticity to ensure that the plate does not crack during the blanking. Soft materials have good punching performance. After punching, parts with smooth cross-section and small inclination can be obtained; hard materials have poor quality after punching and have large cross-sectional unevenness, which is especially serious for thick plates. For brittle materials, tearing is easy to occur after punching, especially when the width is small. 2. The plates that need to be bent and formed should have sufficient plasticity and a low yield limit. Sheets with high plasticity are not easy to crack when bent. Sheets with lower yield limit and lower modulus of elasticity have small rebound deformation after bending, and it is easy to obtain a curved shape with accurate dimensions. The brittle material must have a relatively large bending radius when bending, otherwise it is easy to crack during the bending process. 3. Sheet metal drawing, especially deep drawing, is one of the more difficult sheet metal processing techniques. Not only the drawing depth is required to be as small as possible, the shape is as simple as possible, and the transition is smooth, but the material is also required to have better plasticity. , Otherwise it is easy to cause the whole part to be distorted, deformed, partially wrinkled, or even broken in the stretched part. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automobile stamping parts molds Learn more: Points to note in the design of continuous stamping dies (2)