The use of stamping dies requires high technology, which can not only cope with difficult problems, but also help to solve them perfectly. We know that many problems often occur during the production of stamping dies:

       The most common quality defect of a part is an oversized product. Excessive size is a serious defect of punching parts. In this regard, we must first check and verify the design of the mold to eliminate the reasons for design and manufacturing. If the out-of-tolerance size is related to the material thickness, the thickness, material, and hardness of the stamping material should be tested.

       During the production of stamping, oversize is caused, which is mainly due to mold wear, poor positioning and guidance, and deformation of the product. The wear of the cutting edge of the mold will cause too large burrs or larger cut dimensions, smaller punching holes, and poor flatness. You should sharpen or replace the mold. Poor positioning and guidance include no guidance, guide pins or other positioning devices not functioning, the feeder does not relax, the wear of the positioning block makes the feeding distance too long, the length of the guide plate is incorrect, or the guide gap is too large. The deformation of the product in production mainly includes impact deformation, such as the product's blow pressure is too strong or the gravity drop impact is too large deformation: when the material is extruded or deformed, it should be cleaned in time or increase the output space: Ejection deformed improperly. For example, improper preparation of the ejection pin, improper spring force, or excessive ejection, the spring force should be adjusted or the number of pins should be adjusted; Some curved parts cannot allow the material to overlap, and must be dropped each time. When a dish-shaped strain occurs, a pressure pad can be used to eliminate it; punching and shearing deformation is mainly caused by material distortion. The size is increased or the center is asymmetric; the squeezing deformation of the floating debris is due to the squeezing deformation of the floating material or the fine debris left on the die surface or foreign matter.

       The surface quality problems of stamping mold parts are mainly caused by excessive burrs. The reason for the excessive burr of the workpiece is that the cutting edge of the mold is worn first. The mold should be reground (described below) to ensure that the cutting edge is sharp. Secondly, the interval between convex and concave molds is unreasonable. Most of the sides of the ambassador are polished belts. If the clearance is too small, a secondary shear surface will appear. If the material hardness is too high, you should replace the material or increase the clearance. When the size of the blanking edge is too small or the trimming material is too small, the material will be pulled into the die gap and become burr. At this time, the lap size or cutting margin of the blanking must be increased.

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