Do you know the advantages of automotive stamping materials?

2019-12-17 10:36:44

Features design and material advantages of mechanical and electrical stamping parts: compared with castings and forgings, stamping parts are thin, uniform, light and strong. Stamping can produce workpieces with stiffeners, ribs, undulations or flanging to improve their rigidity. These workpieces are difficult to make in other ways. Because the stamping parts use precision die, the precision of the workpiece can reach micron level, and the repeated precision is high, the specification is consistent, and can punch out the hole, the boss, etc., so the application of stamping parts is more and more extensive.

In the design of hardware stamping parts, not only to make its structure meet the use requirements, but also to make it meet the requirements of hardware stamping parts structure technology, that is, hardware stamping parts structure should be compatible with stamping technology. The metal stamping parts with good structure and technology can reduce or avoid the generation of stamping defects, easy to ensure the quality of stamping parts, at the same time, it can simplify the stamping process, improve productivity and reduce production costs. The main factors that affect the process performance of metal stamping parts are the shape, size, accuracy and material of metal stamping parts.

Stamping parts can be processed by stamping, bending, stretching and other means. Metal stamping parts are widely used in all areas of our life, including some electronic devices, auto parts, decorative materials and so on.

Stamping parts are mainly formed by stamping metal or non-metal plates with the help of the pressure of the press through the stamping die. It has the following advantages:

1. Stamping parts are made by stamping under the premise of little material consumption. The parts are light in weight and good in rigidity. After plastic deformation, the internal structure of metal is improved, and the strength of stamping parts is improved.

2. Stamping parts have high dimensional accuracy, uniform size with the module, and good interchangeability. No further machining is needed to meet the general assembly and use requirements.

3. In the process of stamping, because the surface of materials is not damaged, the stamping parts have good surface quality and smooth appearance, which provides convenient conditions for surface painting, electroplating, phosphating and other surface treatment.

There are more than ten large stamping parts for automobiles: the inner and outer plates of the machine cover, the top cover, the left and right wing boards, the outer plates of the large side wall, the inner and outer plates of the trunk, the inner and outer plates of the front and rear doors, and the front, middle and rear floors.

There are many kinds of automobile stamping parts, different types of parts use different steel plates.

Some sealing plates and supports with low performance requirements and uncomplicated shapes will use steel plates with general tensile properties;

Because of the appearance requirements of large-scale outer covering parts, special steel plates will be used;

Some parts with relatively complex shapes, deep shapes or relatively rapid changes need steel plates with good tensile properties;

The dimensional accuracy of metal stamping parts can be generally divided into two categories: precision level and common level. Precision level is the precision that can be achieved in stamping technology, while common level is the precision that can be achieved by more economic means. When the die manufacturing accuracy is high, the dimension accuracy of metal stamping parts can reach itl0, and the inner hole dimension can reach it9.

The surface quality of metal stamping parts should not be higher than the surface quality of raw materials, otherwise it needs to increase subsequent processing to achieve, increasing production costs.

The dimensional accuracy of hardware stamping parts refers to the difference between the actual size and the basic size of the stamping parts. The smaller the difference, the higher the dimensional accuracy of hardware stamping parts. The main factors that cause the dimensional error of metal stamping parts are: the manufacturing accuracy of punch and die; the gap between punch and die; the elastic recovery of materials after stamping; the accidental factors in the production process, such as inaccurate positioning, unstable material performance, etc.