The MIM (Metal Injection Molding) Technology was developed in the early seventies for the Aeronautical sector.
This process is the combination of two traditional technologies such as plastic injection molding and powder sintering.
Unlike the process of powder sintering by compression, the MIM offers greater flexibility in the design of products because the feedstock (mixture of metal powders and binder) is injected into a mold through a press similar to those used for the plastic molding, and thus even the mold used for production has all the characteristics typical of a mold for thermoplastics, with the possibility of radial movements to produce lateral cavities and undercuts
The second part of the production cycle, once molded, is sintering itself, but not before the pieces have been subjected to the debinding phase.
The sintering cycle usually lasts from 15 to 24 hours and at the end the resulting product has high mechanical characteristics and tolerances that are measured in the order of hundredths.
The great advantage of this technology is therefore the possibility to produce in large quantities and with excellent repeatability of the production cycle, steel parts that if not produced by CNC would have unsustainable costs.
The markets that most often use this technology are:
Consumer and industrial electronics
For more information please do not hesitate to contact us.