Metal Injection Moulding (MIM)

MIM – Metal Injection Moulding – largely resembles injection moulding of plastic components. Metal powder and plastic paste are baked to form a “dough” that is then heated and injection moulded. The resulting component is then sintered to remove the plastic paste and to give the metal its final properties.

The technique allows the manufacture of extremely complex designs with great precision. The associated tool costs are somewhat higher than for other types of casting, so MIM is most suitable for large batches. However, as the degree of processing is minimised, the costs are appreciably lower than those for shaping by cutting, for example.

Properties

  • Narrow tolerances
  • Fine surfaces
  • In principle, without limitations for irregular shapes
  • A wide variety of materials
  • Requires large batches to cover the tool costs
  • Upper weight limit of around 100 g

See components

More details

Production process: MIM

Read more about metal injection moulding:
www.mpfi.org
www.epma.com