The production of molds plays an important role in our industrial production. Nowadays, due to the needs of our industrial production, various types of molds have also emerged around us. The production of molds is very strict, because even a small error can cause the products we produce to be unqualified. The same is true in our mold production. Progressive molds are one of the commonly used molds, and their production is also extremely strict, How to improve the performance of our progressive molds is a common problem that all mold workers want to solve. Let’s learn how to improve the performance of progressive molds together. We know that any small error can affect the accuracy of processing data parameters, which in turn affects the performance of progressive mold products. Processing accuracy refers to the degree to which the actual dimensions, shape, and position of the machined part surface meet the ideal geometric parameters required by the drawing. The ideal geometric parameters, in terms of size, are uniform dimensions; For surface geometric shapes, they are absolute circles, cylinders, planes, cones, and straight lines, etc; For the mutual position between surfaces, it means absolute parallelism, verticality, coaxiality, symmetry, etc. The deviation between the actual geometric parameters of the part and the ideal geometric parameters is called machining error. Both machining accuracy and machining error are terms used to evaluate the geometric parameters of machining surfaces. The machining accuracy is measured by tolerance level, and the lower the level value, the more accurate it is. The higher the accuracy, the machining error is represented by numerical values, and the larger the numerical value, the greater the error. High machining accuracy means small machining errors, and vice versa.
The main reasons that affect the stability of molds and stamping are as follows: horizontal to the strength of a mold material and progressive die structure, the stability performance of progressive die stamping materials, the characteristics of waves, the thickness of progressive die materials in the progressive die stamping process, because each urgent plate has its own chemical composition, mechanical properties, and stamping performance characteristic values closely related, the stamping material performance is unstable, and the stamping material thickness fluctuates, The changes in stamping materials not only directly affect the accuracy and quality of the stamping process, but may also lead to damage to the progressive die. The stamping technology and progressive die design process must consider the magnitude of tensile resistance, decorate the range of tensile steel bars and determine the form of tensile steel bars based on the edge holding force, so that each area can complete the forming deformation mode and degree as needed. We believe that there are too many factors that affect the stability of progressive molds, so we are all using them. We also need to pay more attention to these operations to improve the stability of progressive molds and ensure the quality of processed products. In recent years, progressive molds have been increasingly used around us, and the performance requirements of our stamping dies are also high. We need to maintain them as progressive molds to extend their service life.
Precautions for designing progressive molds: Causes of faults during the stamping process of progressive molds:
1. Edge wear; 2. The difference is too large, and the cutting effect is not significant after reaching the destination; 3. Cutting edge cutting, unreasonable gaps, deviations, looseness, and misalignment. The method to improve the stability of progressive dies: level up to the strength of a mold material and progressive die structure, the stability performance of progressive die stamping materials, the characteristics of waves, the thickness of progressive die materials in the progressive die stamping process, because each urgent plate has its own chemical composition, mechanical properties, and stamping performance characteristic values closely related, the stamping material performance is unstable, the stamping material thickness fluctuates, and the stamping material changes, Not only does it directly affect the accuracy and quality of the stamping process, but it may also lead to damage to the progressive die. The stamping technology and progressive die design process must consider the magnitude of tensile resistance, decorate the range of tensile steel bars and determine the form of tensile steel bars based on the edge holding force, so that each area can complete the forming deformation mode and degree as needed. Notes on progressive die design: From the perspective of progressive die design systems, the role of practical experience should be highly valued in determining the large-scale systems that make up stamping and mold manufacturing, as well as the structure of progressive dies for parts. Realistically, establish practical mold solutions while considering existing mold manufacturing and stamping production conditions. The structure of progressive molds is complex, difficult to design, with high manufacturing costs and long cycles. Therefore, the design should adhere to scientific, rigorous, pragmatic, careful analysis and detailed planning, make reasonable designs, facilitate production and meet requirements, fully understand the requirements and usage conditions of product parts processing and mold manufacturing.