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Introduction to the drawing process of stamping parts
In the processing of stamping parts, the drawing process is also a processing method that is often used. When processing, the first thing that will be encountered is the stamping direction of the drawing part. This aspect is very important, it will not only directly affect the quality of the drawing parts, but also affect some related parameters in the process. The stamping direction of the stretched part should meet the following requirements: 1. Ensure that the punch can enter the concave mold; 2. Try to make the area of u200bu200bthe punch contact with the blank as large as possible, because this is most conducive to improving the degree of deformation of the stretched part; 3. The feed resistance of each part of the pressing surface should be kept uniform, which is also a strong guarantee for the quality of the stretched parts. In the drawing forming process of stamping parts, there are one-time drawing forming and multiple drawing forming. One-time stretching is characterized by one-time molding, which can improve production efficiency. The disadvantage is that one-time molding is easy to be out of place, and the degree of change in each stretch is required, and cannot be changed too much. Multi-stretching can improve the qualification rate of the product, and it is not easy to produce waste products. The middle of the multi-stretching is stress-relieving and annealing is softened. Multiple stretching can ensure the accuracy of the workpiece, elongation coefficient and production efficiency have been greatly improved. Multiple stretches can stretch more evenly and reduce the defect rate of the workpiece. There are advantages and disadvantages to one-time stretch forming and multiple stretches. When stamping precision stretched parts, you can choose according to the characteristics of the product. Recommended article: How to choose a suitable lubricant in the deep drawing of stamping parts? Previous post: What are the reasons for the burrs of metal stamping parts?