Common problems in stamping dies in the production process

Stamping dies are the basis for processing stamping parts, and stamping parts need to be moulded to achieve a fixed shape and size. If there is a problem with the stamping die, the entire subsequent production of the stamping processing plant will also be affected. Precision, provide one-stop services for mold design, stamping, injection molding, and automated assembly. Next, we will analyze some common problems of stamping dies for everyone. First, the concave and convex mold ruptures In the entire stamping process, the place that bears the greater pressing pressure is the concave and convex molds of the entire mold. Therefore, if the design of the concave-convex mold is improper, it will be easily broken and damaged. The break of the punch is a kind of break of the punch. The main reasons for the fracture of stamping die include: 1. Improper material selection. The selection of die material needs to be determined by combining the materials and dimensions of all processed stamping parts. For example, processing stainless steel stamping parts requires the selection of better mold materials. 2. Unqualified mold heat treatment After the mold heat treatment, the hardness is too low or too high. It is recommended to determine the appropriate hardness range according to the usage. 3. Unreasonable demolding design The gap between the concave mold and the convex mold needs to be within a reasonable range. Punching parts processed with too large a gap will produce burrs, and too small a gap will cause the die or punch to break. When the concave-convex mold breaks, it is necessary to carefully analyze the cause and solve the problem. Sometimes, you can continue to use the mold after grinding. In some cases, you need to reprocess the mold according to the drawings. Second, mold deformation. When the mold is deformed, the shape of the processed stamping parts will also be deformed, making the size of the produced product unable to meet the requirements. The deformation of the stamping die is mainly caused by improper material selection or improper heat treatment. The force of the die during the stamping process can cause deformation. 3. Die wear The blade wear we often say in the stamping industry is a manifestation of die wear. In the stamping process, the friction between the upper and lower molds and the material will inevitably be worn. When severely worn, the processed stamped parts will produce larger burrs, which will lead to unqualified products. However, mold wear can usually be resolved by grinding. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automotive stamping parts molds Learn more: Points to note in the design of continuous stamping dies