The effect of printing parameters on sintered properties of extrusion-based additively manufactured stainless steel 316L parts

Extrusion-based additive manufacturing (EAM) is a relatively new process developed for the production of complex metallic and ceramic parts needed in smaller quantities. The debinding sintering step EAM adopted from well-known powder injection molding process. However, 3D printing needs special consideration to make competent era rapid manufacturing. This study intended investigate effect common parameters on microstructure mechanical properties sintered stainless steel 316L (SS316L) manufactured through Part orientation (Ori), extrusion velocity (Ve), layer height (h) were changed experimental runs by following full factorial design. Extrusion pressure as an indicator melt stability grey relational grade combined response analyzed against varying parameters. Physical characteristics measured during show near isotopic shrinkage stable. Metallographic characterization terms porosity grain size indicated minor differences when Ve h altered. Sintered showed improved printed with vertical part = 0.5 mm, whereas which contributes significantly build-up rate was found be responsible stability. at 12.5 mm/s exhibited higher properties.