A Natural Progression
Often, metal injection moulding is a natural progression from magnets to polymer injection moulding. Goudsmit UK specialise in the design and manufacture powder injection moulding products, including metal injection moulding (MIM) and ceramic injection moulding (CIM) technologies of complex, high volume, net-shaped components.
MIM involves manipulating metal powders to behave like a plastic by mixing them with polymer binders to form a feedstock. This feedstock is used to injection mould net shaped, precision components. Parts are then thermally processed to remove the binder system and then sintered to a high-density metal component.
Dimensional tolerances of ±0.3% are common and machining is required for closer tolerances. MIM can produce parts where it’s difficult to professionally manufacture an item through other means of fabrication. Increased costs for traditional manufacturing methods essential to part complexity, such as internal and external threads, miniaturization, or identity marking, typically do not increase the cost in a MIM operation due to the flexibility of injection moulding.