Forming process of punching die beam piece

The invention relates to the field of punching dies, in particular to a forming process of a punching die beam piece. The method comprises the following steps of: 1. expanding the material of a workpiece to obtain rough material initial dimensions, wherein the dimensions are controlled to be less than 1-5mm; carrying out debugging with the initial material of the shape to obtain a blanking line of the workpiece; and arranging blanking stock layouts according to the shape to manufacture a blanking die; 2. forming: debugging the creases, the cracks, the overlaps, the instability and the surface quality of the workpiece; 3. side reshaping: reshaping the whole profile, and correcting the springback of the last process; and 4. trimming and punching holes: punching the hole of the workpiece and trimming.