Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing method may include forming a part using additive manufacturing. The method may also include bringing the part to a first temperature, measuring the part along at least three axes at the first temperature, bringing the part to a second temperature, different than the first temperature, and measuring the part along the at least three axes at the second temperature. The method may further include comparing the size of the part at the first and second temperatures to calculate a coefficient of thermal expansion, generating a tool path that compensates for the coefficient of thermal expansion, bringing the part to the first temperature, and trimming the part while the part is at the first temperature using the tool path.

A 3D printer is disclosed herein. The 3D printer comprises a build material distributor to generate layers of a build material in a spreading direction along a spreading axis; a resonator mounted on the build material distributor to vibrate the build material distributor along the spreading axis at a frequency; and a controller. The controller is to control the resonator to vibrate the build material distributor at the frequency while controlling the build material distributor to spread a volume of build material over a platform to generate a layer of build material.

A 3D printer is disclosed herein. The 3D printer comprises a build material distributor to generate layers of a build material in a spreading direction along a spreading axis; a resonator mounted on the build material distributor to vibrate the build material distributor along the spreading axis at a frequency; and a controller. The controller is to control the resonator to vibrate the build material distributor at the frequency while controlling the build material distributor to spread a volume of build material over a platform to generate a layer of build material.

An additive manufacturing apparatus includes a support plate defining a window and a resin support configured to support an uncured layer of resin. A stage is configured to hold one or more cured layers of the resin to form a component positioned opposite a support plate. A radiant energy device is positioned on an opposite side of the resin support from the stage and is operable to generate and project radiant energy in a patterned image through the window. The stage is configured to move simultaneously with the resin support from a first position to a second position in an X-axis direction.

The present disclosure relates to a manufacturing system for additive manufacturing of a workpiece and an additive manufacturing method. The manufacturing system for additive manufacturing of a workpiece includes a building panel, a lifting device for the building panel, a blade device, an optical device, and a control unit. The blade device comprises at least one coater element for applying or removing a powder material to the building panel. The optical device comprises an optical element for reception of image data from the building panel and/or from the powder layer. The lifting device is configured to raise and/or lower the building panel. The control unit is configured to control the lifting device based on the image data.

The present disclosure relates to a manufacturing system for additive manufacturing of a workpiece and an additive manufacturing method. The manufacturing system for additive manufacturing of a workpiece includes a building panel, a lifting device for the building panel, a blade device, an optical device, and a control unit. The blade device comprises at least one coater element for applying or removing a powder material to the building panel. The optical device comprises an optical element for reception of image data from the building panel and/or from the powder layer. The lifting device is configured to raise and/or lower the building panel. The control unit is configured to control the lifting device based on the image data.

A method of printing a three dimensional article is provided wherein particles are bonded together with chemical bonds having a bond strength of at least 10 kJ/mol. In one aspect, kits for three dimensional printing are described herein. In some embodiments, a kit described herein comprises a substantially dry particulate material (20) comprising an insoluble filler having a first functional group on the surface of the insoluble filler; and a fluid binder material (26) comprising a multifunctional linker having a second functional group, wherein the insoluble filler is insoluble in the fluid binder material and wherein the first functional group and the second functional group can react with one another to form a covalent bond between the insoluble filler and the multi functional linker.

A method of printing a three dimensional article is provided wherein particles are bonded together with chemical bonds having a bond strength of at least 10 kJ/mol. In one aspect, kits for three dimensional printing are described herein. In some embodiments, a kit described herein comprises a substantially dry particulate material (20) comprising an insoluble filler having a first functional group on the surface of the insoluble filler; and a fluid binder material (26) comprising a multifunctional linker having a second functional group, wherein the insoluble filler is insoluble in the fluid binder material and wherein the first functional group and the second functional group can react with one another to form a covalent bond between the insoluble filler and the multi functional linker.

A solid-state manufacturing method comprising urging a metal-based feedstock material within a sleeve of a propulsion system in a processing direction along an axis of the sleeve and against a friction die adjacent one end of the sleeve; softening at least a portion of the feedstock material within the hollow portion of the sleeve to a malleable state to form malleable feedstock material using relative rotatory friction between the friction die and the feedstock material; extruding the malleable feedstock material from an extrusion hole in response to the urging step; and depositing the malleable feedstock material from the extrusion hole onto a substrate as a paste using at least one plastering surface and continuing depositing the malleable feedstock material as deposit layers until a desired shape is completed.

A solid-state manufacturing method comprising urging a metal-based feedstock material within a sleeve of a propulsion system in a processing direction along an axis of the sleeve and against a friction die adjacent one end of the sleeve; softening at least a portion of the feedstock material within the hollow portion of the sleeve to a malleable state to form malleable feedstock material using relative rotatory friction between the friction die and the feedstock material; extruding the malleable feedstock material from an extrusion hole in response to the urging step; and depositing the malleable feedstock material from the extrusion hole onto a substrate as a paste using at least one plastering surface and continuing depositing the malleable feedstock material as deposit layers until a desired shape is completed.