The processing of metal stamping parts Electrical terminals is mainly to form metal or non-metal sheet materials through stamping die with the help of the pressure of the press. Compared with castings and forgings, so-called metal stamping parts have the advantages of thinness, lightness, uniformity and strength. Because of the use of molds, the workpiece accuracy of stamping parts can generally reach micron level. The processing of metal stamping parts is very important. Analysis of metal stamping parts can see the following characteristics:

1. The shape is complex, the size and shape, most of the material thickness t> 3mm ~ 12.5mm, are fine blanking parts for medium and thick plates and thick plates, the punching surface is straight and smooth, and the quality is comparable to that of cutting.

2. The contour of the fine blanking parts is clear and the slump angle is small. Some hole margins and hole spacing (wall thickness) ≤ t, and there are formed fine blanking such as embossing, counterboring, blind holes and hub flanges, especially those with small modulus. Involute, cycloid, triangle, rectangle, trapezoid and other shapes of gear fine-blanking parts are difficult to manufacture by other processing techniques.

3. All mechanical and electrical product parts that are mass-produced and reach a moderate economic production scale, including: fine-blanking parts of automobile handbrakes, cars, motorcycles, etc., 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 fine-blanked punching surface are greatly improved, and the friction resistance and weather resistance are used for fine-blanking parts such as gear tooth profiles and bushings on the moving surface and friction surface, and their service life will be shortened. thus increased.