Abstract: A powder container can include a body defining a chamber having a bulk opening, a moveable cover configured to selectively cover the bulk opening, and a hopper nozzle extending from the body and in fluid communication with the chamber configured to allow powder to exit or enter the chamber, the hopper nozzle being smaller than the bulk opening.

Abstract: A method includes receiving torque data of a powder recoater operatively connected to an additive manufacturing system. The torque data includes torque data of the recoater when the recoater traverses a build area. Receiving torque data includes receiving force data from a plurality of load cells, each load cell operatively associated with a blade segment of a recoater blade assembly. The method also includes determining a quality of one or more of an additive manufacturing process and/or product based on the torque data.

Abstract: A method includes issuing a state change fluid into an internal passage of an additively manufactured article and causing the state change fluid to change from a first state having a first viscosity to a second state that is either solid or has a second viscosity that is higher than the first viscosity within the internal passage. The method can also include causing the state change fluid to change back from the second state to the first state and flushing the state change fluid from the internal passage to remove residual powder from the additively manufactured article.

Abstract: A method includes placing an additively manufactured article having one or more internal channels in a non-reactive liquid to remove remainder powder from within the one or more internal channels, wherein the non-reactive liquid is a gas at room temperature and/or pressure. Placing the additively manufactured article in the non-reactive liquid includes can include placing the additively manufactured article in liquid nitrogen.

Abstract: A support structure for an additive manufacturing system includes a support body with a support body material and an interface disposed on the support body with an interface material. The interface material has a ductile-to-brittle transition temperature that is higher than the ductile-to-brittle temperature of the support body material for selectively fracturing the interface material to separate an additively manufactured article from the support body.

Abstract: A powder container can include a body defining a chamber having a bulk opening, a moveable cover configured to selectively cover the bulk opening, and a hopper nozzle extending from the body and in fluid communication with the chamber configured to allow powder to exit or enter the chamber, the hopper nozzle being smaller than the bulk opening.

Abstract: A method for selecting an alloy for additive manufacturing includes melting a first material and a second material together to create a material melt, spinning the material melt to create melt spun ribbons, welding the ribbons together to produce a weld, and determining a weld quality of the weld.

Abstract: A cap for an additive manufacturing recoater rake includes a clip portion defining a slot configured to receive a side edge portion of a recoater rake, and an angled surface extending from the clip portion. The angled surface is configured to contain powder pushed by the recoater rake on the powder bed.

Abstract: A method includes placing an additively manufactured article having one or more internal channels in a non-reactive liquid to remove remainder powder from within the one or more internal channels, wherein the non-reactive liquid is a gas at room temperature and/or pressure. Placing the additively manufactured article in the non-reactive liquid includes can include placing the additively manufactured article in liquid nitrogen.

Abstract: A method includes receiving an image from an optical imaging device disposed in operative communication with an additive manufacturing machine, wherein the image includes at least part of a build area of the additive manufacturing machine, determining a reflectance of at least a portion the build area based on the image to create reflectance data, and determining a quality of one or more of an additive manufacturing process and/or product based on the reflectance data. The method can further include converting the image to greyscale if the image is not in greyscale.

Abstract: A method includes receiving torque data of a powder recoater operatively connected to an additive manufacturing system. The torque data includes torque data of the recoater when the recoater traverses a build area. The method also includes determining a quality of one or more of an additive manufacturing process and/or product based on the torque data.

Abstract: A method includes receiving torque data of a powder recoater operatively connected to an additive manufacturing system. The torque data includes torque data of the recoater when the recoater traverses a build area. Receiving torque data includes receiving force data from a plurality of load cells, each load cell operatively associated with a blade segment of a recoater blade assembly. The method also includes determining a quality of one or more of an additive manufacturing process and/or product based on the torque data.

Abstract: A method includes issuing a state change fluid into an internal passage of an additively manufactured article and causing the state change fluid to change from a first state having a first viscosity to a second state that is either solid or has a second viscosity that is higher than the first viscosity within the internal passage. The method can also include causing the state change fluid to change back from the second state to the first state and flushing the state change fluid from the internal passage to remove residual powder from the additively manufactured article.

Abstract: A support structure for an additive manufacturing system includes a support body with a support body material and an interface disposed on the support body with an interface material. The interface material has a ductile-to-brittle transition temperature that is higher than the ductile-to-brittle temperature of the support body material for selectively fracturing the interface material to separate an additively manufactured article from the support body.