A method of printing a cellular solid (120) by direct bubble writing comprises introducing an ink formulation (102) comprising a polymerizable monomer and a gas (104) into a nozzle (106), which includes a core flow channel (108) radially surrounded by an outer flow channel (110). The ink formulation is directed into the outer flow channel (110) and the gas is directed into the core flow channel (108). The ink formulation (102) and the gas (104) are ejected out of the nozzle (106) as a stream of bubbles (112), where each bubble includes a core (114) comprising the gas and a liquid shell (116) overlying the core that comprises the ink formulation. After ejection, the polymerizable monomer is polymerized to form a solid polymeric shell (118) from the liquid shell (116), and the bubbles are deposited on a substrate (122) moving relative to the nozzle (106). Thus, a polymeric cellular solid (120) having a predetermined geometry is printed.

Systems and methods for forming a magnetically-enabled part via additive manufacturing. The method includes depositing a layer of additive manufacturing material on a build plate, melting or sintering the layer of additive manufacturing material, depositing additional layers of additive manufacturing material on previous layers of additive manufacturing material, the additive manufacturing material of at least some of the additional layers being magnetically permeable, and melting or sintering the additional layers of additive manufacturing material such that the magnetically-enabled part has a transition region including at least some of the magnetically permeable additive manufacturing material.

A system is disclosed for additive manufacturing of a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may include an outlet configured to discharge a continuous reinforcement at least partially coated in a matrix. The outlet may be moveable relative to the support. The print head may also include at least one actuator configured to cause movement of the outlet relative to the support.

A visible light laser system and operation for welding materials together. A blue laser system and operation for welding conductive elements, and in particular thin conductive elements, together for use in energy storage devices, such as battery packs.

A multi-material three-dimensional printing apparatus is provided. The provided apparatus includes two or more print stations. Each of the print stations includes a substrate, a transportation device, a dispersion device, a compaction device, a printing device, a fixing device, and a fluidized materials removal device. The apparatus also includes an assembly apparatus in communication with the two or more print stations via the transportation device. The apparatus also includes one or more transfer devices in communication with the assembly apparatus. The apparatus also includes a computing and controlling device configured to control the operations of the two or more print stations, the assembly apparatus and the one or more transfer devices.

The invention relates to a feeding device (1) for feeding welding filler elements (310) for deposition welding processes, a positioning sleeve (300, 302) for a feeding device (1), a processing unit and a method for deposition welding. In particular, the invention relates to a feeding device (1) for feeding welding filler elements (310), in particular a wire-shaped and/or rod-shaped welding filler element (310), for a deposition welding processes, comprising a receiving unit (100) for receiving at least one welding filler element (310), a guide unit (200), which is arranged and designed to feed the welding filler element (310) to a deposition welding processes, the receiving unit (100) and the guide unit (200) being arranged and designed such that the welding filler element (310) is provided discontinuously to the guide unit (200).

The invention relates to a feeding device (1) for feeding welding filler elements (310) for deposition welding processes, a positioning sleeve (300, 302) for a feeding device (1), a processing unit and a method for deposition welding. In particular, the invention relates to a feeding device (1) for feeding welding filler elements (310), in particular a wire-shaped and/or rod-shaped welding filler element (310), for a deposition welding processes, comprising a receiving unit (100) for receiving at least one welding filler element (310), a guide unit (200), which is arranged and designed to feed the welding filler element (310) to a deposition welding processes, the receiving unit (100) and the guide unit (200) being arranged and designed such that the welding filler element (310) is provided discontinuously to the guide unit (200).

A method to fabricate hierarchical graded materials includes providing a reservoir of functionalized particles, mixing at least some of the functionalized particles using a mixer in the print head having a mixed fluid volume control on an order of a voxel to produce mixed functionalized particles, and actuating a print head to deposit the mixed functionalized particles on a substrate.

A lamination molding apparatus which can lower the oxygen concentration in a molding room in short time is provided. A lamination molding apparatus, including a molding room; a processing head; a driving device housing room housing a driving device moving the processing head; a partitioning section to partition the molding room from the driving device housing room; a discharging section to discharge gas in the molding room; and an inert gas supplying apparatus to supply the inert gas to both of the molding room and to the driving device housing room.

A system for inspecting a part while said part is produced by additive manufacturing, includes an additive manufacturing apparatus having a build tray, the apparatus being configured to fabricate the part layer-by-layer on the tray; an automated tool holder carrying a tool configured to deposit, add or weld layer-upon-layer of material; the tool holder and tray are configured to move relative to one another along a defined path; and an inspection device attached to the tool holder and configured to scan a layer of material in situ. The tool holder alternately arranges the tool and inspection device in a working position so that the tool holder fixes the tool in the working position for depositing, adding, or welding the layer of material and thereafter the tool holder switches said tool with the inspection device into the working position for scanning and detecting defects in the layer of material.