Stamping parts are formed by applying external force to plates, strips, pipes and profiles by means of presses and molds to produce plastic deformation or separation, so as to obtain workpieces of required shape and size. In this process, it is inevitable that some problems will be encountered. How to deal with and deal with it?
When the section quality and dimensional accuracy of the workpiece are required to be high in the processing of stamping parts, the trimming process can be added after the punching process or the precision blanking process can be directly used. In order to improve the stability of the precision stamping process, it is sometimes necessary to increase the number of processes to ensure the quality of the stamping parts.
In many cases, the number of processes for the bending part mainly depends on the complexity of its structure and shape, and it depends on the number of bending angles, relative positions and bending directions. When the bending radius of the bending piece is less than the allowable value, a reshaping process is added after bending.
Similarly, the number of processes for drawing parts is related to the material properties, drawing height, number of drawing steps, drawing diameter, material thickness and other conditions, which can be determined by drawing process calculations. When the rounded corner radius of the drawn part is small or the dimensional accuracy is required to be high, it is necessary to add a shaping process after drawing.
On this basis, the determination of the number of stamping parts should also conform to the company's existing mold making capabilities and stamping equipment. The mold making ability should be able to ensure the corresponding increase in mold processing and assembly accuracy, otherwise the number of processes can only be increased.
Single-process molds are used to blank workpieces with simple shapes. On the contrary, for stamping parts with complex shapes, due to the restriction of the structure or strength of the mold, the inner and outer contours should be punched in several parts, requiring multiple punching processes.
