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The development direction of automotive mold
At present, China's automotive mold manufacturing industry has grown significantly in terms of both quantity and scale. However, most companies are still focused on low-end, repetitive production, leading to overcapacity in the mid-to-low end of the market. For high-end automotive development, the required advanced mold manufacturing capabilities fall short of industry demands. The design, development, and production of high-end molds are still not fully meeting the needs of China’s auto industry, resulting in a heavy reliance on imports for such critical components.
To address these challenges, Xu Zhonghe, Director of the Technology Department at Qizhong Numerical Control Equipment Co., Ltd., recently shared five key directions for the future development of automotive molds:
1. **Emphasize Computer Technology**: The core of mold manufacturing is increasingly shifting towards computer-based solutions. More work is now done on computers rather than on the shop floor. Solid modeling combined with CNC programming is replacing traditional manual methods and machine operation. Advanced die face design and precise CNC programming significantly reduce the need for clamping adjustments, while high-precision machining eliminates the need for grinding and rework.
2. **Integrated Machining**: Modern machine shops utilize three types of CNC machining lines. The first involves multiple CNC machines with interchangeable beds. The second includes unattended flexible processing systems with 3D warehouses, a concept from the early 1990s. The third type consists of high-speed, high-precision, five-axis machining centers that have been widely adopted in recent years.
3. **Refined Manufacturing**: Mold refinement is becoming an essential trend. This involves optimizing stamping processes, designing efficient mold structures, achieving high precision in mold production, and ensuring the reliability and strict technical management of the final product.
4. **Digital Mold Technology**: Digitalization is now the mainstream in automotive mold technology. Key aspects include Design for Manufacturability (DFM), intelligent profile design, CAE analysis for stamping simulation, 3D mold design, and the use of CAPP, CAM, and CAT technologies in the manufacturing process. Digital tools also help resolve issues during trial runs and production.
5. **Automation in Mold Processing**: Automation is rapidly advancing in automotive mold manufacturing. Features like automatic tool changers, photoelectric control systems, and online measurement systems are common in advanced facilities. CNC machining has evolved from simple profile cutting to full-scale machining of complex surfaces, moving from medium to high-speed operations, and embracing greater automation across the board.
These developments signal a shift toward more sophisticated, efficient, and technologically advanced mold manufacturing, which will be crucial for supporting China’s growing automotive sector.