How to prevent turning and distortion of metal stamping parts-Hardware

Reasonable die design for metal stamping parts. In the progressive die, the arrangement of the blanking sequence may affect the forming accuracy of the stamping parts. For the blanking of the small parts of the stamping parts, generally a larger area of u200bu200bpunching is arranged first, and then a smaller area of u200bu200bpunching is arranged to reduce the turning and distortion of the metal stamping parts due to the punching force.　⑵Hardware stamping parts hold down the material. Overcome the traditional mold design structure, open a material-containing gap on the discharge plate (that is, when the mold is closed, the discharge plate is attached to the concave mold, and the gap between the discharge plate and the concave mold where the material is contained is the material thickness t-0.03 ~0.05mm). In this way, the unloading plate moves smoothly during stamping, and the material can be compressed. The key forming part, the unloading plate must be made into a block-type structure to facilitate the solution of the wear (compression) loss of the pressing part of the unloading plate caused by long-term stamping, and the material cannot be compressed.　　⑶The hardware stamping parts are equipped with a strong pressure function. That is to increase the size of the press part of the unloading insert (normal unloading insert thickness H+0.03mm) to increase the pressure on the material on the side of the die, so as to prevent the stamping part from turning over and twisting during punching.　　⑷The end of the punch edge of the metal stamping part is trimmed with a bevel or arc. This is an effective way to reduce cushioning power. By reducing the buffer cutting force, the tensile force on the side material of the die can be reduced, so as to achieve the effect of suppressing the turning and twisting of the stamping parts.　　⑸ In the daily mold production of metal stamping parts, care should be taken to maintain the sharpness of the punching convex and concave die cutting edges. When the punching edge is worn, the tensile stress on the material will increase, and the tendency of the stamping part to turn over and twist becomes greater.　 Need to know more, welcome to consult: