Metal Injection Molding (MIM) is a process that combines thermoplastic injection molding with powder metallurgy to produce complex, high-density, high-performance metal parts. MIM breaks through the limitations of traditional powder metallurgy products, the strength limit of breakthrough die casting, the material flow limitation of stamping die forming, the mass production limit of precision casting and the high cost limit of turned parts. A variety of smart mobile devices are changing the world at incredible speeds, and these products require small size, light weight and perfect appearance. As a metal forming process, metal injection molding (MIM) combines the flexibility of design flexibility of powder metallurgy materials and plastic molds.

 MIM Compared with other processes

Characteristic	Metal injection molding(MIM)	Traditional powder metallurgy	Die casting (zinc, aluminum)	Precision casting	Machining
Shape complexity	high	Low	high	medium	high
Minimum thickness	0.5 mm	1mm	0.8mm	2mm	0.5mm
Surface roughness	thin 1μm Ra	crude	medium	medium 5μm Ra	thin
Mechanical strength	high	medium	Low	medium	high
Material selection	many	medium	few	medium	many
density	95~99%	< 95%	100%	100%	100%
Precision	medium	high	medium	medium	high
Electroplatability	excellent	Low	medium	excellent	excellent
Mass production	high	high	high	medium	Low
cost	medium	Low	medium	medium	high