A gas management system for binder jetting additive manufacturing from build material powder includes a first volume at least partly within a binder jet printer that contains gas at a first pressure. A second volume encloses a plurality of process modules configured to deposit and bind build material powder. The second volume contains gas at a second pressure. A boundary between the first and second volumes includes a partition providing separation between the volumes and controls gaseous communication between them. A gas management system maintains a conditioned environment within the second volume during printing by selectively providing an inflow of process gas to the second volume. Process gas flows from the first volume to the second volume. The first pressure of the gas in the first volume is greater than the second pressure of the gas in the second volume.
Pour en savoir plus : Gas management system for binder jetting additive manufacturing