MIM technology introduction
Metal injection molding (MIM) is a net forming process, which was first used in the 1920s. The origin of some current MIMs can also be traced back to the 1960s. However, it lacked the necessary industrial foundation at that time and has not been widely used. In recent years, due to the leading role of 3C products, the MIM industry has developed rapidly and is widely used in 3C electronics, hardware accessories, power tools, lock accessories, smart wear, jewelry accessories, medical equipment and other industries. The main processes of the MIM process include: mixing, injection, debinding, sintering, and appropriate post-treatments if necessary. The MIM process has the characteristics of high cost performance, high product performance and the ability to form complex parts.
Compared with traditional powder metallurgy
aMIM generally does not require subsequent processing
bMIM parts have excellent corrosion resistance, strength and toughness
cMIM parts have excellent magnetic properties
MIM compared with cutting technology
aMIM design can save material and weight
bMIM can shape difficult-to-cut materials into the final shape
cMIM design can save multiple assembly operations
MIM compared with precision casting
aMIM can produce smaller thickness
bMIM roughness is better
cThe small diameter half holes and through-holes of MIM parts have better Process-ability
dMIM parts can greatly reduce the required finishing machining
eMIM produces small parts at lower costs and faster delivery.