Dimensional and geometrical precision of parts produced by binder jetting process as affected by the anisotropic shrinkage on sintering

Dimensional and geometrical precision of parts produced by binder jetting is a crucial issue to be considered aiming at promoting the transition industrial production. The influence both printing sintering processes has evaluated, high shrinkage considered. task further complicated anisotropy dimensional change on sintering. aim this work investigate cylindrical holes, as affected after jetting. AISI 316 L powder was used produce five different geometries, characterized four holes with orientation respect direction. features were measured in green sintered state coordinate measuring machine, changes, well variations, calculated. According author’s previous experience, theoretical model been defined, which aims predicting geometry derived anisotropic expected hole diameters, variation cylindricity, axis inclination calculated compared those from measurement. Good agreement between predicted results observed, providing that process parameters