MIM uses a raw material powder particle size of 2-15μm, while the traditional powder metallurgy (PM) raw material powder particle size is 50-100μm. Due to the use of fine powder, the density of the finished product of the MIM process is high. The degree of freedom of shape of MIM products cannot be achieved by PM.

Traditional investment casting (CI) process is an extremely effective technique for manufacturing products with complex shapes. In recent years, ceramic cores can be used to help products with cracks and deep cavities. However, due to the strength of the ceramic core and the fluidity of the casting liquid, it is restricted. This process still has certain technical difficulties. Generally speaking, this process is more suitable for manufacturing large and medium-sized parts, while the MIM process is more suitable for small and complex parts, and IC process materials are subject to certain restrictions.

The die-casting process is suitable for aluminum, zinc alloy and other materials with low melting point and good casting fluidity, while the MIM process is suitable for various materials.

Precision forging can form complex parts, but cannot form small three-dimensional complex parts. Its product precision is low and its products have limitations.

Traditional machining methods: Recently, automation and digital control have been used to improve machining capabilities. Great progress has been made in terms of efficiency and accuracy, but the basic procedures are still complementary to the progressive machining of complete parts such as turning, planing, milling, grinding, drilling, and polishing. The form, precision, and complexity of machining methods are far superior to other methods, but due to the low effective use of materials and the limitation of equipment and tools, some parts cannot be completed by machining. On the contrary, MIM can use materials effectively, and the freedom of form is not restricted. For the manufacture of small, complex and difficult-to-form precision parts, the MIM process is cheaper, more efficient and more competitive than mechanical processing.