metal Injection molding, MIM has been widely used in many applications such as a high technology in the metallurgy field. It has solved many difficulties in machining process.

(MIM), a near-net-shape technology of making precise and high qualified parts, has some unparalleled advantages as compared to routine powder metallurgy or machining methods. MIM can manufacture various and complex parts that routine powder metallurgy can't finished, such as external grooving, external thread, conical outer surface, cross via hole, blind hole, concave platform and key pin, strengthening tendon-plate, surface knurl, etc. As MIM manufacturing parts hardly need further machining, material consumption is greatly reduced. So when the requirements of complex shaped parts exceed a certain level, MIM will be more economical than machining method is.

PIM is a revolutionary manufacturing technology of complex small-sized parts. The steps involved in PIM technology are as follows: Mixing the metal or ceramix powder with a suitable binder at a certain temperature, which produce homogeneous feedstock, then forming the part by injection molding in a closed die, after that, removing the binder and densifying the compact by high-temperature sintering

1)Directly manufacturing small-sized parts with complicated shape with high efficiency just as making plastic.
2)Compared to machining and investment casting, the products made by PIM have more consistent microstructure and they also have higher mechanical property than the products made by powder metallurgy.
3)The products made by PIM have glabrous surface and tight tolerance.