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 mixturefor injection molding and adhesion of the powder to keep the molded shape. The binder must providestrength and cohesion for the molded part, must be easy to be removed from the molded part, andmust be the recyclable, environmentally friendly and economical ones. The goal of this study is todevelop a feedstock of Inconel 718 environmentally friendly. For this, a study of binder formulationbased on polyethylene glycol, because of his water debinding properties, and bio sourced polymerwas made. Polylactic acid and Polyhydroxyalkanoates were investigated as bio sourced polymers.The chemical, rheological and mechanical behavior of the binder formulation during mixing, injectionand debinding process were investigated.