Comparison of MIM and precision casting
In the metal forming process, die casting and precision casting are parts that can form three-dimensional complex shapes, but die casting is limited to low melting point metals, while precision casting (IC) is limited to high melting point metals such as alloy steel, stainless steel, and high temperature alloys and non-ferrous metals. Refractory alloys such as cemented carbide, high-density alloys, cermets, etc. are powerless. This is the essential limitation of ICs, and it is very difficult or impractical for ICs to produce small, thin, and large-volume parts. IC industrialization has matured, and its development potential is limited. MIM is an emerging process that will squeeze into the IC market for large quantities of small parts.
Comparison of MIM and traditional machining. Traditional machining methods have recently improved their machining capabilities by automation. They have made great progress in efficiency and accuracy. However, the basic procedures are still inseparable from gradual machining (turning, planing, milling, Grinding, drilling, polishing, etc.) to complete the shape of the part. The machining accuracy of the machining method is far superior to other machining methods, but because the effective utilization of materials is low, and the completion of its shape is limited by equipment and tools, some parts cannot be completed by machining. On the contrary, MIM can effectively use materials, and the freedom of shape is not limited. For the manufacture of small and difficult-to-shape precision parts, the MIM process has lower cost and higher efficiency than mechanical processing, and has strong competitiveness. MIM technology makes up for the technical shortcomings of traditional processing methods or the shortcomings of inability to manufacture. It is not only in competition with traditional processing methods. MIM technology can exert its advantages in the field of parts that cannot be produced by traditional processing methods.