Micro metal injection molding, μ-MIM is hoped to be one of manufacturing process for minute metal parts in various engineering fields. he size of μ-MIM products is generally smaller than the size of feedstock pellets. Thus, it is deemed preferable that the capability of injection molding machine is commensurate with the amount of specimens. In this study, minute mixing-injection molding machine which is capable of producing with equivalent amount to a pellet was developed In order to show the advantages of the machine, other two types of injection molding machines for mass production; 1) Conventional injection machine, and 2) Micro size injection machine with similar micro cavities were also used for comparison. The effects of molding conditions on the properties of μ-MIM products were discussed. It was clarified that the minute mixing-injection machine developed is suitable for fabricating μ-MIM products.
