Introduction of the Feedstock Used in Metal Injection Molding

Metal injection molding (MIM) is a near net shape technology that is combined with plastic shaping technology, polymer chemistry, powder metallurgy and metal material science.

It takes advantage of the mould, injection molding and sintering to manufacture parts with high density, high precision and complex geometry at a high space.

MIM is able to materialize rapidly and accurately the ideas of design with products with certain structure and function characteristics, and mass production. MIM utilizes a large amount of binders as a means of flow, so it can manufacture metal parts with almost any complex geometry theoretically, just like plastic injection molding, which conventional powder metallurgy can’t realise. Besides, the parts made by MIM almost doesn’t need afterward machining, because it’s a near net shape technology, which greatly reduce the manufacturing cost.

The product made by MIM have a uniform density, because of the good feedstock flow during injection molding when filled in cavity. Moreover, the feedstock used in MIM is fine powder, which contribute to a high density after sinterinig. Therefore, the mechanical properties of MIM products are superior to products’ made by conventional manufacturing technology.