A system is disclosed for additively manufacturing a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may have an outlet configured to discharge a continuous reinforcement at least partially coated in a matrix, and a device located inside the print head and configured to at least partially coat the continuous reinforcement with the matrix. The system may also include a sensor configured to generate a signal indicative of an amount of the matrix, and a controller in communication with the sensor and the device. The controller may be configured to direct a command to the device to cause the device to advance matrix toward the continuous reinforcement during passage of the continuous reinforcement through the print head, and to selectively adjust the command based on the signal.

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.

A three-dimensional (3D) printer is configured to introduce a liquid metal onto a first part and a second part while the first part and the second part are in contact with one another. The liquid metal subsequently solidifies to join the first part and the second part together to produce an assembly

Systems, apparatus, and method for manufacturing are disclosed. In an aspect, the apparatus may be a cold-spray nozzle. The cold-spray nozzle may include a variable diameter convergent part. The cold-spray nozzle may also include a variable diameter divergent part. The variable diameter divergent part may form a diffuser. Additionally, The cold-spray nozzle may include a ring portion. The ring portion may couple the variable diameter convergent part and the variable diameter divergent part. Additionally, the ring portion may control the opening to the diffuser.

A system is disclosed for additively manufacturing a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may have a first tool center point associated with discharge of a first material, and a second tool center point associated with discharge of a second material that is a type different than the first material.

In an additive manufacturing machine using a plurality of lasers, a reference laser is established that remains stationary and focused on a commanded point in a collection area. The reference laser uses one or more co-axial sensors to monitor emitted electromagnetic energy in the area. While the reference laser is monitoring the area, each non-reference laser in turn produces and moves a meltpool through the collection area in a known movement. For each non-reference laser, the electromagnetic energy collected and observed by the reference laser during positions of the known movement is compared with an expected electromagnetic energy for each position. For a given non-reference laser, the differences between the observed and expected electromagnetic energies can be used to determine differences between a coordinate system of the reference laser and a coordinate system of non-reference laser. The non-reference laser may then be realigned based on the determined differences.

In an additive manufacturing machine using a plurality of lasers, a reference laser is established that remains stationary and focused on a commanded point in a collection area. The reference laser uses one or more co-axial sensors to monitor emitted electromagnetic energy in the area. While the reference laser is monitoring the area, each non-reference laser in turn produces and moves a meltpool through the collection area in a known movement. For each non-reference laser, the electromagnetic energy collected and observed by the reference laser during positions of the known movement is compared with an expected electromagnetic energy for each position. For a given non-reference laser, the differences between the observed and expected electromagnetic energies can be used to determine differences between a coordinate system of the reference laser and a coordinate system of non-reference laser. The non-reference laser may then be realigned based on the determined differences.

One aspect is an apparatus including a first node including a first bonding surface and a second node including a second bonding surface. The apparatus includes a feature configured to accept an adhesive and an adhesive channel coupled to the feature configured to accept the adhesive. The apparatus includes a shear joint coupling the first node and the second node, the shear joint configured to receive the adhesive in an adhesive region formed by the first bonding surface and the second bonding surface, the adhesive for coupling the first bonding surface to the second bonding surface through the feature configured to accept the adhesive.

An irradiation assembly for additively manufacturing three-dimensional objects may include an irradiation device and a magnetic mounting device configured to displaceably support the irradiation device. The irradiation device may include one or more illumination elements respectively configured to emit an energy beam. The magnetic mounting device may include a magnetic slider element coupled to the irradiation device and a magnetic stator element couplable to a housing structure of an additive manufacturing machine. The magnetic stator element may include a displacement track configured to guide the magnetic slider element along a movement path above at least a portion of a construction plane of the additive manufacturing machine while the one or more illumination elements respectively emit the energy beam to selectively irradiate build material at specified regions of the construction plane.

An irradiation assembly for additively manufacturing three-dimensional objects may include an irradiation device and a magnetic mounting device configured to displaceably support the irradiation device. The irradiation device may include one or more illumination elements respectively configured to emit an energy beam. The magnetic mounting device may include a magnetic slider element coupled to the irradiation device and a magnetic stator element couplable to a housing structure of an additive manufacturing machine. The magnetic stator element may include a displacement track configured to guide the magnetic slider element along a movement path above at least a portion of a construction plane of the additive manufacturing machine while the one or more illumination elements respectively emit the energy beam to selectively irradiate build material at specified regions of the construction plane.