The first advantage is extremely high design freedom. Compared to traditional metal forming methods such as forging and machining, MIM can manufacture more complex parts. Essentially, all structures achievable with injection molding can be used in MIM, such as porous structures, irregular curved surfaces, and fine grooves, eliminating the need for multiple clamping and machining operations and significantly reducing costs.
The second advantage is a wider range of material choices. MIM can use almost any metal material. Considering economic factors, the main application materials cover iron-based, nickel-based, copper-based, and titanium-based metals or alloys, meeting the material performance requirements of different industries, such as titanium alloys in the medical field and high-strength iron-based alloys in the automotive field.
The third advantage is excellent physical and chemical properties. Because the sintering density of MIM is very close to the theoretical density, its mechanical strength, hardness, and other physical and chemical properties are outstanding. According to industry test data, the mechanical strength of MIM parts significantly exceeds that of traditional powder metallurgy products, meeting the usage requirements of high-load scenarios such as automotive and medical applications.
The fourth advantage is its refined appearance. The surface roughness (Ra) of MIM sintered blanks can be as low as 1μm, and various surface treatments such as anodizing, electroplating, and sandblasting can achieve dazzling aesthetic effects, making it ideal for consumer electronics and other fields with high appearance requirements.
The fifth advantage is high dimensional accuracy. MIM typically achieves a tolerance accuracy of ±0.5%, and with subsequent processing methods such as grinding and polishing, even higher dimensional accuracy can be achieved, meeting the assembly requirements of precision parts.
The sixth advantage is its powerful and flexible mass production capability. MIM can flexibly adjust and rapidly increase production, responding quickly from hundreds to hundreds of thousands of pieces per day, effectively handling market order fluctuations, such as the bulk demand during peak seasons for consumer electronics.
The seventh advantage is its environmentally friendly processing concept. MIM has a near-net-shape forming technology with near 100% raw material utilization, effectively avoiding material waste, complying with current dual-carbon policies, and reducing raw material costs for enterprises.