Recently, the domestic precision die-casting mold manufacturing industry has witnessed dual breakthroughs in technological innovation and production capacity upgrading. A variety of standardized, high-precision and long-service-life forming toolings have been put into mass production. Covering core categories including Die Casting Die, Gravity Die Casting Mold, Hot Stamping Die, and Low-Pressure Die Casting Mold, and supported by auxiliary toolings such as Patterns for Molding Line and Core Boxes, a full-process and multi-scenario metal forming manufacturing system has been established, effectively driving cost reduction, efficiency improvement and quality upgrading in downstream industries including automobile, aerospace, high-end hardware and new energy equipment.
As the core basic tooling for precision metal forming, the Die Casting Die serves as the key carrier for high-pressure die-casting processes. Adopting high-strength mold steel materials, precision cavity design and mature heat treatment processes, it can withstand the impact of molten metal under high pressure and high speed. Capable of mass-producing aluminum alloy, zinc alloy and other metal parts with accurate dimensions and high consistency, it is the most widely used core mold type in industrial mass production, meeting the demands for large-scale and standardized production of high-precision parts.
Segmented mold categories achieve precise adaptation to diverse production scenarios and process requirements. The Gravity Die Casting Mold fills the mold cavity by virtue of the self-weight of molten metal. Featuring a simple structure, controllable production cost and strong adaptability, it is mostly applied to the production of small and medium batches of hardware accessories, construction machinery castings and decorative metal components. With outstanding practicality and economical efficiency, it perfectly fits the flexible production needs of small and medium-sized manufacturing enterprises. In contrast, the Low-Pressure Die Casting Mold adopts a low-pressure stable filling process, which effectively reduces casting defects such as pores and shrinkage porosity. Castings produced by this mold feature dense structure, excellent mechanical properties and high material utilization rate. It is mainly used for the production of high-end precision castings including aerospace structural parts, automotive wheel hubs and new energy equipment shells, acting as a crucial tooling for high-end lightweight manufacturing.
In addition to die-casting molds, the Hot Stamping Die, as the core tooling for thermal forming, focuses on the high-temperature stamping and forming process of metal sheets. It realizes high-precision shaping through accurate temperature control and high-pressure molding, and can process high-strength and high-hardness metal sheet components. Widely applied to automotive body structural parts, precision mechanical sheet metal parts and other products, it fills the gap of traditional die-casting processes in sheet metal forming and improves the process layout of precision metal forming.
The implementation of high-quality forming processes relies on the coordination and empowerment of supporting toolings. As standardized templates for molding production lines, Patterns for Molding Line can unify mold installation benchmarks, calibrate forming accuracy and adapt to automated assembly line operations. They effectively improve production line compatibility and operational stability, greatly reduce the time consumed by mold debugging and replacement, and significantly boost overall production efficiency. Core Boxes are special toolings for forming casting sand cores and cavity cores. They can accurately shape the complex inner cavity structures of castings, solve the forming difficulties of special-shaped, hollow and complex-structure castings, greatly expand the design and production boundaries of die-casting products, and enable the mass production of precision castings with complex structures.
Industry experts stated that the high-end manufacturing industry is developing rapidly towards precision, intelligence and customization. As the "mother of industry", molds determine the quality of downstream products and the competitiveness of the manufacturing industry in terms of category completeness, precision level and service life. The iterative upgrading and application of this full range of mold toolings has realized full coverage of multiple processes including high-pressure die casting, gravity die casting, low-pressure die casting and hot stamping. Supported by the complete supporting system of molding line templates and core boxes, it has formed a full-process process closed loop from mold forming and core manufacturing to assembly line mass production.
In the future, with the in-depth development of intelligent mold manufacturing technology, various precision forming toolings will be further upgraded towards higher precision, longer service life, energy conservation and modularization. They will continuously empower core industries such as high-end equipment, new energy and automobile manufacturing, and promote the high-quality development of China’s precision die-casting manufacturing industry.
