Precautions for designing progressive die

Causes of failure in the progressive die stamping process: 　　1, edge wear; 　　2, the gap is too large, the effect of the knife edge after reaching the destination is not obvious; 　　3, cutting edge cutting, unreasonable gap, offset or looseness and dislocation . Methods to improve the stability of the progressive die: 　 　 level to a mold material, the strength of the progressive die structure, the stable performance of the stamping material of the progressive die, the characteristics of the wave The thickness of the progressive die material is in the process of the progressive die stamping, because each This kind of pressing plate has its own chemical composition, mechanical properties and stamping performance characteristic values u200bu200bare closely related. The performance of stamping materials is unstable, the thickness fluctuation of stamping materials, and the changes of stamping materials not only directly affect the accuracy and quality of the stamping process, but may also lead to Damaged progressive die.　　 Stamping technology and progressive die design process must consider the size of tensile resistance, decorate the range of tensile steel bars and determine the form of tensile steel bars according to the blank holder force, so that each area can complete the forming deformation mode and degree of deformation according to the needs.　　 Design progressive die precautions: 　　 progressive die design system point of view, from the determination of the large-scale system that constitutes stamping and mold manufacturing and the structure of the part progressive die, the role of practical experience should be highly valued. Realistic, establish a practical mold plan, while considering the existing mold manufacturing, stamping production conditions. The progressive die structure is complex, difficult to design, high manufacturing cost, and long cycle. Therefore, the design should adhere to scientific, rigorous, pragmatic, careful analysis and detailed planning, make a reasonable design, facilitate production and meet requirements, and fully understand the processing and processing of product parts. Mold manufacturing requirements and conditions of use.