1. The number of processes of precision stamping workpiece mainly depends on the complexity of its structural shape, the number of bending angles, the relative position and the bending direction. When the bending radius of the bending part is less than the allowable value, the forming process is added after bending.
2. The process quantity is related to data nature, depth of drawing, step number of drawing, diameter of drawing, thickness of data and other conditions, which can only be determined through calculation of drawing process. When the fillet radius of the drawing piece is small or the dimensional accuracy is high, the forming procedure should be added after the drawing. Precision stamping
3. The number of processes should be consistent with the existing mold manufacturing capacity and stamping equipment of the enterprise. Mold manufacturing capacity should be able to ensure the mold processing, assembly accuracy of the corresponding schedule requirements. Otherwise, the operand can only be incremented;
4. When the cross section quality and dimensional accuracy of fine blanking parts are high, finishing process after blanking process can be considered or fine blanking process can be directly adopted.
5. In order to improve the stability of precision stamping process, it is sometimes necessary to increase the number of processes to ensure the quality of precision stamping workpiece. Such as bending parts of the additional positioning hole punching, forming process to increase the amount of deformation to reduce hole punching to transfer the deformation area.
