A method for producing a three-dimensional object (2, 10) and a boundary region (8, 9, 18) by layer-wise applying and solidifying of at least one building material, wherein the three-dimensional object (2, 10) is produced with a first generative production method on the basis of a first building material and the boundary region (8, 9, 18) is produced with a second generative production method, which is different from the first generative production method, on the basis of a second building material. The first generative production method comprises the steps: applying a layer of the first building material on a building base (11, 12) or on an already previously applied layer, selectively solidifying the applied layer at positions corresponding to the cross-section of the object (2, 10) in the respective layer and repeating the steps of applying and selectively solidifying until the object (2, 10) is completed.

The first and the second generative production method are carried out such that the boundary region (8, 9, 18) encloses the object (2, 10) at least partially.

A method for fabricating a turbomachine component including a metal alloy with a layering device is provided. The method for fabricating the turbomachine component may include combining two or more elemental powders to form a powdered material. The method for fabricating the turbomachine component may also include forming a first metal alloy layer of the turbomachine component on a substrate. Forming the first metal alloy layer on the substrate may include melting a first portion of the powdered material to a first molten material with a heat source, mixing the first molten material with the heat source, and cooling the first molten material. The method for fabricating the turbomachine component may further include forming a second metal alloy layer of the turbomachine component on the first metal alloy layer, and binding the first metal alloy layer with the second metal alloy layer.

A 3D printing device for producing a three-dimensional component form at least two different materials. The 3D printing device has both a spray-printing unit and an electron-beam and/or laser unit. To produce the three-dimensional component, the spray-printing unit is designed and set up to spray the at least two different materials, and the electron-beam and/or laser unit is designed and set up to join sprayed-on material integrally by fusing by means of an electron beam and/or by means of a laser beam of the electron-beam and/or laser unit.

A 3D printing device for producing a three-dimensional component form at least two different materials. The 3D printing device has both a spray-printing unit and an electron-beam and/or laser unit. To produce the three-dimensional component, the spray-printing unit is designed and set up to spray the at least two different materials, and the electron-beam and/or laser unit is designed and set up to join sprayed-on material integrally by fusing by means of an electron beam and/or by means of a laser beam of the electron-beam and/or laser unit.

The present invention concerns a method for the manufacture of a three-dimensional object, comprising (a) providing a three-dimensional model of the object, which divides the object in voxels; (b) applying a first layer of a radiation-curable slurry onto a target surface, wherein the slurry contains a polymerizable resin and a photoinitiator; (c) polymerizing the resin by illuminating the voxels of the first layer in accordance with the model with radiation at a temperature above room temperature and above the glass transition temperature of the polymerized resin, to cause polymerization of the resin to form a cross-linked polymeric matrix; (d) applying a subsequent layer of the slurry on top of the first layer; (e) polymerizing the resin by scanning the voxels of the subsequent layer in accordance with the model with radiation at a temperature above room temperature and above the glass transition temperature of the polymerized resin, to cause polymerization of the resin to form a cross-linked polymeric matrix; (f) repeating steps (d) and (e), wherein each time a subsequent layer is applied onto the previous layer, to produce a green body; and optionally (g) debinding and (h) sintering of the three-dimensional object. The invention further concerns the three-dimensional object obtained thereby and an additive manufacturing system suitable for performing the method according to the invention.

The present invention concerns a method for the manufacture of a three-dimensional object, comprising (a) providing a three-dimensional model of the object, which divides the object in voxels; (b) applying a first layer of a radiation-curable slurry onto a target surface, wherein the slurry contains a polymerizable resin and a photoinitiator; (c) polymerizing the resin by illuminating the voxels of the first layer in accordance with the model with radiation at a temperature above room temperature and above the glass transition temperature of the polymerized resin, to cause polymerization of the resin to form a cross-linked polymeric matrix; (d) applying a subsequent layer of the slurry on top of the first layer; (e) polymerizing the resin by scanning the voxels of the subsequent layer in accordance with the model with radiation at a temperature above room temperature and above the glass transition temperature of the polymerized resin, to cause polymerization of the resin to form a cross-linked polymeric matrix; (f) repeating steps (d) and (e), wherein each time a subsequent layer is applied onto the previous layer, to produce a green body; and optionally (g) debinding and (h) sintering of the three-dimensional object. The invention further concerns the three-dimensional object obtained thereby and an additive manufacturing system suitable for performing the method according to the invention.

According to examples, an apparatus may include a back panel to absorb energy and an energy emitter to supply energy onto a build material layer. The energy emitter may include an energy emitting element and an outer tube. In addition, a reflective element may be provided on a portion of the outer tube facing the back panel to direct energy away from the back panel. The apparatus may also include a transparent panel, in which energy from the energy emitter may be emitted through the transparent panel and onto the build material layer.

The invention relates to a method for additively manufacturing three-dimensional components by layer-by-layer application of a build-up material and locally selective solidification of the build-up material by at least one beam (15) impinging on the build-up material and following a feed direction (12), wherein an irradiation path (10) of the impinging beam deviates during the feed from a, in particular straight, feed centre line M, wherein at least one line P parallel to M or corresponding to M is successively crossed by the irradiation path (10) at three points P1, P2 and P3, so that applies: P2 lies further forward in the feed direction than P1 and P3 lies between P1 and P2, at a distance p1 from P1 and a distance p2 from P2, where: p2/p1≥2.0, preferably p2/p1≥3.5.

A metals-based additive manufacturing machine and method are disclosed. The machine and method include a hybrid temperature monitoring system. The hybrid temperature monitoring system includes a Raman spectrometer, a single-element ultrasound transducer, and a phased-array ultrasound pair. The hybrid temperature monitoring system can generate a real-time three-dimensional temperature map of the melt pool and optionally a portion of the metal powder base and/or a formed portion of a desired artifact. The real-time three-dimensional temperature map can be used for optimizing the metals-based additive manufacturing process in real-time or during subsequent process runs.

A metals-based additive manufacturing machine and method are disclosed. The machine and method include a hybrid temperature monitoring system. The hybrid temperature monitoring system includes a Raman spectrometer, a single-element ultrasound transducer, and a phased-array ultrasound pair. The hybrid temperature monitoring system can generate a real-time three-dimensional temperature map of the melt pool and optionally a portion of the metal powder base and/or a formed portion of a desired artifact. The real-time three-dimensional temperature map can be used for optimizing the metals-based additive manufacturing process in real-time or during subsequent process runs.