Although both automotive interior parts precision mold and ordinary molds serve molding processing, there are significant differences in many dimensions. These differences are due to the strict requirements of automotive interior parts for quality and precision.
From the perspective of mold design concept, automotive interior parts precision mold pays more attention to details and overall coordination. Since automotive interiors are directly facing consumers, the appearance, touch and matching degree with the style of the whole vehicle are crucial. Therefore, when designing precision molds, not only the functionality of the product should be considered, but also the surface texture, curvature, gap and other appearance details should be accurately controlled, and even the light reflection effect should be simulated to ensure that the interior parts have a delicate texture after molding. Ordinary molds are usually mainly used to meet basic functional requirements, and the requirements for refined design of the appearance are relatively low.
In terms of mold manufacturing accuracy, the gap between the two is particularly obvious. The manufacturing tolerance of automotive interior parts precision mold is extremely small, and the coordination between each component must reach micron-level accuracy. This is because the dimensional accuracy of the interior parts directly affects the assembly effect. If the dimensional deviation is too large, it will cause problems such as uneven gaps and loose assembly between interior parts, affecting the user experience and safety. During the manufacturing process, precision molds need to use high-precision processing equipment, such as five-axis linkage machining centers, and through multiple fine cutting and grinding, ensure that the size and surface finish of the mold cavity and core meet the standards. In contrast, the manufacturing accuracy of ordinary molds can meet the basic use of the product, and the precision requirements for processing equipment and processes are not so high.
In the selection of mold materials, automotive interior parts precision mold is also more sophisticated. Since interior parts are mostly made of polymer materials such as plastics and rubber, during the molding process, the mold needs to withstand high temperature, high pressure and chemical erosion, while also ensuring dimensional stability under long-term use. Therefore, precision molds usually use high-quality mold steel, which has good wear resistance, corrosion resistance and heat treatment performance, and can maintain the accuracy and surface quality of the mold under complex working conditions. Ordinary molds may choose relatively ordinary materials based on cost and product requirements, and are slightly inferior in durability and stability.
The structural design of the mold also reflects obvious differences. automotive interior parts precision mold often has a complex structure. In order to achieve the special shape and function of interior parts, advanced structural designs such as multi-sliders, inclined tops, and hot runners may be used. These structures can solve the molding problems such as undercuts and side holes, ensure that the interior parts are molded in one time, and reduce the subsequent processing steps. The structure of ordinary molds is relatively simple, usually based on two-plate molds or three-plate molds, and the molding capacity of complex-shaped products is limited.
In terms of production efficiency and cost control, the two also have different considerations. Although the automotive interior parts precision mold has high initial R&D and manufacturing costs, it can achieve automated and efficient production due to its high precision and complex structural design, reduce scrap rate and rework rate, and help reduce the production cost of a single product in the long run. Although the initial investment of ordinary molds is low, due to insufficient production accuracy and stability, there may be a high scrap rate, and it is difficult to achieve large-scale automated production, and the overall cost is not necessarily lower.
In terms of the service life of the mold, the automotive interior parts precision mold relies on high-quality materials, exquisite manufacturing technology and reasonable structural design. Under normal use and maintenance conditions, it can withstand more opening and closing cycles and has a longer service life. However, due to the limitations of materials and processes, ordinary molds are prone to wear and deformation during long-term use, resulting in mold failure and a relatively short service life.
There are obvious differences between automotive interior parts precision mold and ordinary molds in design concept, manufacturing precision, material selection, structural design, production efficiency and service life. These differences reflect the high requirements of automotive interior parts for quality and precision, and also reflect the unique value of precision molds in meeting high-end manufacturing needs.
