Development and Characterization of Environmentally Friendly Inconel 718 Feedstock to Metal Injection Moulding Process

摘要

In the MIM process the binder play the most important role. It provides fluidity of the feedstock mixture for injection molding and adhesion of the powder to keep the molded shape. The binder must provide strength and cohesion for the molded part, must be easy to be removed from the molded part, and must be the recyclable, environmentally friendly and economical ones. The goal of this study is to develop a feedstock of Inconel 718 environmentally friendly. For this, a study of binder formulation based on polyethylene glycol, because of his water debinding properties, and bio sourced polymer was made. Polylactic acid and Polyhydroxyalkanoates were investigated as bio sourced polymers. The chemical, rheological and mechanical behavior of the binder formulation during mixing, injection and debinding process were investigated.