Abstract: A powder removal apparatus includes an extraction housing comprising a sidewall that is sized and configured to extend around a powder bed of a build module and a top wall that is sized and configured to extend between opposite sides of the sidewall and over the powder bed. The sidewall and top wall are configured to form a chamber portion of a turbulence chamber. The top wall has a vacuum exit opening that is configured to fluidly connect to a vacuum source. The sidewall has a plurality of sidewall inlet flow channels that extend from an inlet opening at an exterior side of the sidewall to an outlet opening at an interior side of the sidewall. A side exit channel is configured to extend along the top wall from a collector opening in communication with the chamber portion toward the vacuum exit opening.

Abstract: A de-powdering system for additively manufactured objects includes an enclosure defining a cavity configured to support an additive manufacturing build. The enclosure includes a wall defining a lower boundary of the cavity, and the wall includes one or more flow channels. A sleeve is disposable in the cavity to at least partially surround the additive manufacturing build. At least one vibration mechanism is coupled to the sleeve and is actuatable to induce vibrations to the additive manufacturing build to loosen at least a portion of a powder build material from one or more objects suspended within the powder build material. The powder build material is removed from the cavity via the one or more flow channels.

Abstract: A de-powdering system includes one or more sidewalls defining a support chamber configured to contain an additive manufacturing build where the additive manufacturing build includes one or more objects disposed within a powder build material. A fluidization mechanism is fluidically couplable to a fluid source and includes one or more flow channels fluidically coupled to the support chamber. The fluid source is actuatable to provide a fluid from the fluid source to the support chamber and inject the fluid into the support chamber via the one or more flow channels. The one or more flow channels are oriented to introduce a swirling flow of the fluid into the support chamber to fluidize at least a portion of the powder build material within the support chamber.

Abstract: A powder removal apparatus includes an extraction housing comprising a sidewall that is sized and configured to extend around a powder bed of a build module and a top wall that is sized and configured to extend between opposite sides of the sidewall and over the powder bed. The sidewall and top wall are configured to form a chamber portion of a turbulence chamber. The top wall has a vacuum exit opening that is configured to fluidly connect to a vacuum source. The sidewall has a plurality of sidewall inlet flow channels that extend from an inlet opening at an exterior side of the sidewall to an outlet opening at an interior side of the sidewall. A side exit channel is configured to extend along the top wall from a collector opening in communication with the chamber portion toward the vacuum exit opening.

Abstract: The present disclosure is directed to additive manufacturing systems, components therein, and methods for their use. The additive manufacturing system comprises a powder material handling system comprising a virgin powder inlet. The virgin powder inlet is coupled to a virgin powder drum and configured to receive a virgin powder from the virgin powder drum. The additive manufacturing system further comprises a liquid material handling system comprising a binder inlet. The binder inlet is coupled to a binder drum and configured to receive a binder from the binder drum. The additive manufacturing system also comprises an additive manufacturing machine coupled to the powder material handling system and the liquid material handling system. The additive manufacturing machine receives the virgin powder and the binder from the powder material handling and liquid material handling systems and is configured to manufacture a work product using the virgin powder and the binder.

Abstract: A turbine component includes a rail coolant directing chamber radially outward from an airfoil chamber and radially inward from a tip plate. The chamber includes an inlet fluidly coupled to the airfoil chamber to receive a coolant flow therefrom. A plurality of outlets from the rail coolant directing chamber direct the coolant flow to the at least one rail cooling passage in the rail. At least one directing wall is within the rail coolant directing chamber to direct the coolant flow towards one or more of the plurality of outlets located along at least one of the pressure side wall and an aft region of the suction side wall prior to other outlets.

Abstract: A turbine component includes a rail coolant directing chamber radially outward from an airfoil chamber and radially inward from a tip plate. The chamber includes an inlet fluidly coupled to the airfoil chamber to receive a coolant flow therefrom. A plurality of outlets from the rail coolant directing chamber direct the coolant flow to the at least one rail cooling passage in the rail. At least one directing wall is within the rail coolant directing chamber to direct the coolant flow towards one or more of the plurality of outlets located along at least one of the pressure side wall and an aft region of the suction side wall prior to other outlets.