Application of Mold Stamping Technology in Automotive Stamping Dies

Application of Mold Stamping Technology in the Creative Industry

1.1 Development and Current Status of Stamping Dies. As the pace of integration continues to accelerate and market competition intensifies, people have become increasingly aware of the importance of product quality, cost, and the ability to produce new products In terms of the development of stamping molds, it is mainly manifested in the following aspects:

First, mold CAD/CAM/CAE technology is the development direction of mold design and manufacturing. The development of computers and networks is making it possible for CAD/CAM/CAE technology to be promoted across regions, enterprises, and institutions in the entire industry, achieving the reintegration of technical resources and making virtual manufacturing possible. Second, the development of "reverse engineering" of mould. The high-speed scanning machine and mold scanning system provide many functions required from scanning models or physical objects to processing the desired model, shortening the development and manufacturing cycle of molds. Some scanning systems can be installed on existing CNC milling machines and machining centers to achieve data acquisition, automatic generation of machining programs for various CNC systems, and CAD data in different formats. Mold reverse engineering has been successfully applied in industries such as automobiles, motorcycles, and home appliances. Thirdly, metal stamping parts; Application of processing techniques. In recent years, the development of high-speed milling has greatly improved processing efficiency and achieved surface smoothness. The development of high-speed milling technology has injected new vitality into the manufacturing of large molds in the automotive and home appliance industries. At the same time, the development of electrical discharge milling technology has also laid the foundation for the manufacturing of complex molds. Whether mold heat treatment and surface treatment can fully utilize the properties of mold steel materials is a key link. In recent years, the development of mold heat treatment has used technologies such as vapor deposition and plasma spraying to develop mold surface treatment processes, which can manufacture complex molds and improve processing efficiency.

1.2 Key issues in mold development. For our country, the automatic processing of molds is a long-term development goal. In the entire industry, the key to stamping lies in the mold, and the development of stamping molds is crucial. The following is an analysis of the details in mold design and manufacturing based on an example of a stamping mold, and how to solve them. This provides insights into the future direction of mold design and manufacturing for the design of stamping process systems.

We know that automotive hardware stamping parts; All should have good craftsmanship and economy, and important indicators to measure their level include the number of stamping processes, the number and size of body assembly blocks, and the structure of stamping parts. Reducing the number of stamping processes means reducing the number of stamping parts, saving the number of tooling, simplifying the transmission device of the stamping process, reducing the number of operators and stamping footprint, which is a measure to save investment and energy consumption. Therefore, stamping manufacturers can regard the number of stamping processes as an important way to reduce automobile manufacturing costs, and even improve product design to meet manufacturing process requirements. At the same time, reasonable body assembly blocks of as large a size as possible should be used, such as integral body left and right side panels and roof panels, which can not only make the car look beautiful and reduce air resistance, but also reduce the number of stamped parts and welding points, thus reducing costs. Moreover, modern automobile manufacturing extensively uses rolled materials, thin shell integral body structure steel plates, and galvanized steel plates, all of which require the application of new stamping processes.

2. Co design of car stamping in a small town

2.1 Process analysis of box shaped twisted cover components. The processability of stamping parts refers to the difficulty level of stamping parts in production and processing. There are many stamping processes, and the processability in each process is different. Even for the same part, the meaning of processability varies due to the production conditions, equipment, and traditional production habits of the production unit. Therefore, it is required that stamped parts have a shape that is as simple, regular, and symmetrical as possible while meeting usage requirements, in order to save raw materials, reduce intermediate processes, improve mold life, and reduce part costs. This part is the surface of the car interior and is not allowed to have burrs, wrinkles, or other issues, meeting the process structural performance after assembly. And due to the small number of parts processed, about 300 pieces per month, it is considered to use a stamping process similar to conventional methods to reduce the processing and mold manufacturing costs of the parts to a lower level. By using a reinforcing bar mold for stamping processing, and adjusting the magnitude of the edge pressing force multiple times, the material's stress deformation is minimized, resulting in diagonal warping of the part that meets the requirements of the drawing, and the smoother the better.

2.2 Mold structure and main component design. The mold adopts movable small guide columns to play the role of guiding the upper and lower molds, because the expansion of the punching parts is very large. After the mold is installed correctly on the punch press, the movable small guide columns have actually played a small role in guiding the upper and lower molds. During the production process, there may be frequent occurrences of punching and material dropping, which can cause the walls of the convex and concave mold holes to be too thin, affecting the lifespan of the mold. Therefore, the design of the mold core is graded, with a fixed plate used to fix it in the mold core. On the upper template of the universal mold frame, a short positioning pin is used to locate it, thus achieving the goal of completing punching and material cutting in one go.

With the development of the automotive industry, the higher the requirements for automotive panels, the better. Stamping technology and molds are the key to the entire process. The design analysis of automotive stamping parts can improve product quality, reduce product waste, shorten processing cycles, and prevent wrinkling and cracking of products. This article introduces the design points of stamping dies for automotive panels, focuses on the development and current status of stamping dies, and the application of stamping. Based on an example of stamping dies, it analyzes the problems that are prone to occur in the stamping process of automotive panels, and elaborates on the importance of stamping die design from several aspects such as process analysis and mold structure design.