The rheology of metal injection molding

In this study, several readily available polymer binder systems were used to prepare Fe/Ni metal injection molding (MIM) feedstock. A Banbury intensive mixer and screw extrusion were used to achieve optimized feedstock, and the rheological properties of the resulting fluids were evaluated using a capillary rheometry. The effects of shear rate (γ), solid volume fraction (φ) and temperature (T) on the rheological behavior of the Fe/Ni MIM feedstocks are discussed.