Sintering anisotropy of binder jetted 316L stainless steel: part I – sintering anisotropy

In Binder Jetting (BJ) Additive Manufacturing (AM), green components are usually subjected to sintering process reach required properties. Owing the inherent low density, binder jetted parts undergo shrinkages up 20%. addition, anisotropic dimensional evolution during is characteristic for BJ, generally caused by specifics of arrangement particles printing process. this study, multi-axial 316L stainless steel cubic samples (10 × 10 mm3), manufactured using was characterised dilatometry experiments. Dilatometry tests were conducted temperatures 1300°C and 1370°C, with a heating rate 10°C/min 5°C/min, respectively. results final dimension measurements showed shrinkage behaviour about 15% larger along building direction. Shrinkages other two orthogonal directions relatively similar, but slightly printhead movement direction observed. Relative density 85.0% 96.4% obtained after at