There are more and more hardware processing accessories. In many machinery, many processing manufacturers can apply more, similar to cranes, or forklifts, or cranes, or some golden locks in life, keys , Locomotive repair parts, these can be applied, this is one point, now the specifications of hardware processing, and processing materials are different, and the processing size is also different according to the needs of customers. (1) When designing the structural appearance of the parts of the metal stamping parts, the appearance and combination of complex and reasonable structure should be adopted, and at the same time, the number of processed appearances and the processing area should be minimized. (2) Choose the method of blank preparation in reasonable machine manufacturing, which can indirectly apply profile, casting, forging, stamping and welding. The selection of the blank is related to the detailed production technical conditions, and generally depends on the production batch, data function and processing capability. (3) The requirements of the metal stamping forming function. In order to facilitate the improvement of stamping deformation and product quality, the materials should have good plasticity, small yield ratio, large plate thickness directivity coefficient, small three-dimensional directivity coefficient, and data The ratio of yield strength to elastic modulus is small. The separation process does not require the data to have great plasticity, but the data has a certain degree of plasticity. (4) The manufacturing precision and surface roughness with proper rules. The cost of metal stamping parts will increase with the improvement of accuracy, especially in the case of higher accuracy, this increase is extremely obvious. Therefore, high accuracy should not be pursued when there is no sufficient basis. Similarly, the surface roughness of metal stamping parts should also be based on appropriate rules to meet the practical needs of the appearance.