What are the factors affecting the performance of automobile stamping parts?

What are the factors affecting the performance of automobile stamping parts?
The adaptation of sheet metal to various stamping processing forms is called the stamping forming function of sheet metal. Simply put, it refers to whether precision stamping parts can be processed with a simple process method and produce high-quality metal stamping parts with blank efficiently.

Sheet metal forming function is a complex property because it is related to very complex forming environment. Generally speaking, sheet metal forming function depends on the pressure, tension, tensile rate, temperature and these elements related to the metal resistance elongation cracking, metal material size, shape, two-phase particles spread on its function is also a great influence, sheet metal forming process is not stable, but a gradual change of the process, the pressure and tension spread, Decisions are made on many important process parameters, such as die planning, automotive stamping parts size shape and lubrication. Manipulation of these and some fundamental material parameters can increase the degree of plastic deformation of metal materials before cracking. Although there are many factors can affect the sheet metal forming function, but here only comment those as important factors and have been fully understood some of the elements, if the elements are generally divided into processing elements and material elements, then such as mold parameters, mold materials, platen, lubrication, pressure speed can be divided into processing elements. In general, the processing elements determine the characteristics of the external load on the sheet, and the material elements determine the response of the material to the applied load.

The main factors affecting sheet metal stamping forming function are:

1. Crack resistance (forming limit) refers to the large deformation degree that can be achieved in the process of sheet metal forming. In this check degree, the material does not crack, and the metal stamping forming limit is the crack resistance of the material when stamping. The better the stamping function of the material, the better the cracking resistance of the material, the higher the forming limit.

2, stick die refers to the ability of sheet metal in stamping forming and mold shape consistency, affect the factors of stick die many, the forming process produced by convergence, warping, collapse and rise of a number of shortcomings will reduce the stick die.

3. Formability refers to the ability of metal stamping parts to adhere to their shape in the mold after demudding. The larger the forming limit, the better the adhesion and formability, the better the stamping function of the material. The main factor affecting the formability is springback. After the demounding part, the springback is too large and the shape error is larger.