Method of restraining stamping parts from turning over and twisting

⑴. Reasonable mold design. In the progressive die, the arrangement of the blanking sequence may affect the forming accuracy of the stamping parts. For the blanking of small parts of stamping parts, generally a larger area of u200bu200bpunching is arranged first, and then a smaller area of u200bu200bpunching is arranged to reduce the impact of the punching force on the forming of the stamping part. ⑵. Hold down the material. Overcome the traditional mold design structure, open the material gap on the discharge plate (that is, when the mold is closed, the material can be compressed. The key forming part, the discharge plate must be made into a block-type structure to facilitate the solution of long Time stamping causes abrasion (compression) loss at the pressing part of the discharge plate, which makes it impossible to compress the material. ⑶. Add a strong pressure function. That is to increase the size of the pressing part of the discharge insert (normal discharge insert thickness) H+0.03mm), in order to increase the pressure on the material on the side of the die, so as to prevent the stamping parts from turning over and twisting during the punching. ⑷. The edge of the punch is trimmed with a bevel or arc. This is to reduce the cushion cutting. Effective method of force. Reducing the buffer cutting force can reduce the tensile force on the side material of the die, so as to achieve the effect of suppressing the turning and distortion of the stamping parts. ⑸. In the daily mold production, attention should be paid to maintaining the punching convex and The sharpness of the die edge. When the punching edge is worn, the tensile stress of the material will increase, which will increase the tendency of the stamping part to turn over and twist. ⑹. The blanking gap is unreasonable or uneven. The reasons for the turning and distortion of stamping parts need to be overcome. Related news: the characteristics of the main materials of stamping parts, the common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspection, the advantages of metal stamping parts introduce the advantages and processes of stamping parts And features