| dc.description.abstract | Metal injection molding (MIM) is a process technology that combines the advantages of plastic injection molding and powder metallurgy technology, and that is suitable for manufacturing metal parts with high precision, high strength and complex geometry. The manufacturing process covers a wide range of technologies, including mixing of powder and binder, mold design, injection molding, degreasing, sintering and secondary processing in the post-process. The success of mold design determines the success of product development, which directly affects the efficiency and quality of MIM production technology. However, conventional 2D cooling channels may not be easy to deal with the problem of non-uniform temperature distribution for multi-cavity molds, and may cause shaping defects of the product. In this study, we develope an integrated technology for the MIM product shaping and manufacturing, including MIM mold development technology for mold flow analysis, conformal cooling channel design, metal additive manufacturing and CNC processing. Also, through actual injection molding test and analysis the feasibility of this integrated technology is discussed. Finally, through the optimized design of the mold cooling system, the cooling efficiency of the MIM product and the uniformity of the mold temperature are improved, which not only successfully shortens the production process cycle, but also improves the product quality. | en_US |