What are the application characteristics of stamping technology for automotive precision stamping parts?

2023-06-06 16:00:11

Practice has proved that in the mass production of medium-thick plate parts with a material thickness of t>3mm and thick plate parts with a thickness of t>4.75mm, the popularization and application of fine blanking technology instead of cutting processing can not only achieve good economic benefits, but also eliminate the current There are occasional personal injury accidents in ordinary stamping production, which can reduce the pollution of stamping noise to the environment and obtain satisfactory occupational safety and environmental protection benefits. These plate parts are difficult to complete with other processing methods. Even if the combination of various types of work is used for cutting and processing, not only the efficiency is low, the quality is difficult to guarantee, but also the cost is very high. The analysis shows the following characteristics:

1. The shape is complex, the size and shape precision are high, and the thickness of most materials is t>3mm~12.5mm. They are medium and thick plate fine blanking parts. The punching surface is straight and smooth, and the quality is comparable to that of cutting processing.

2. Precision stamping parts have clear contours and small slump angles. Some hole margins and hole spacing (wall thickness) ≤ t and there are forming fine blanking such as embossed holes, counterbores, blind holes, and hub flanges, especially those with a small modulus. Involutes, cycloids, triangles, rectangles, trapezoids and other high-precision gear fine blanking parts are difficult to manufacture with other processing techniques.

3. All are mechanical and electrical product parts that are produced in large quantities and have reached a moderate economical production scale, including: medium-duty trucks, cars, motorcycles and other product fine blanking parts, all of which are punched out of finished parts from raw materials without cutting.

4. Due to the cold work hardening effect, the surface hardness and strength of the punching surface of precision stamping are greatly improved, and the friction resistance and weather resistance are improved. It is used as fine blanking parts such as gear tooth profiles and shaft sleeves on the moving surface and friction surface. will improve accordingly.