Powder Injection Molding of SS316L/HA Composite: Rheological Properties and Mechanical Properties of the Green Part

摘要

Powder injection molding (PIM) is a net shaping process to achieve the desired molded part via mass production using metal or ceramic powder. Processes such as compression and base coating of metal mixed with ceramic have been reported, but only a few used the injection process. In this study, mixing was conducted with a binder system consisting of palm stearin and polyethylene. Shimadzu Flow Tester CFT-500D capillary rheometer was employed in rheological studies. Four parameters were used in the injection process: mold temperature, inject temperature, injection pressure, and time. The density and strength of the injected part were determined. SS 316L injectability with HA was successfully demonstrated and established to be suitable for PIM.