Abstract: The present invention relates to a method for the production of a three-dimensional object (2) by way of layered solidification of a powder construction material (11) by way of electromagnetic radiation, in particular laser radiation, having the steps: scanning points, which correspond to a cross section of the object (2) to be produced, of an applied layer of the powder construction material (11) with an electromagnetic beam (22) from a radiation source (21) for purposes of selectively solidifying the powder construction material (11), conducting a gas flow (33) across the applied layer during the scanning with the electromagnetic beam (22) and performing an irregularity determination with regard to the presence of a process irregularity with regard to at least one process parameter during the production, wherein during the scanning by way of the electromagnetic beam (22), the scanning process at least one present point of the cross section to be solidified is interrupted on the basis of a result of the irre

Abstract: Disclosed are mixtures for use in additive manufacturing, wherein the powder mixture comprises first and second materials. The first material includes a metal alloy or a mixture of elemental precursors thereof, and is in powder form. The second material includes a reinforcement material comprising powder particles having a particle diameter of from 1 to less than 30 ?m (as determined by laser scattering or laser diffraction). The inventive powder mixtures allows for the processing to three dimensions objects which are free of cracking and which thus have favourable mechanical characteristics. Further disclosed are processes for the preparation of corresponding powder mixtures and three dimensional objects, three dimensional objects prepared accordingly and devices for implementing processes for the preparation of such objects, as well as the use of a corresponding powder mixture to suppress crack formation in a three-dimensional object, which is prepared by additive manufacturing.

Abstract: Powder mixture for the use as building material for manufacturing a three-dimensional object by solidifying the building material layer by layer at the positions corresponding to the cross-section of the three-dimensional object in the respective layer, in particular by exposure to radiation, wherein the powder mixture comprises a first powder and a second powder, wherein the first powder comprises powder particles of a first thermoplastic polymer material and a reinforcement material, wherein the reinforcement material is at least partially embedded in the powder particles of the first powder and/or adhered to the surface of the powder particles of the first powder, wherein the second powder comprises powder particles of a second thermoplastic polymer material which is the same as or different from the first thermoplastic polymer material, wherein the powder particles of the second powder do not comprise the reinforcement material or comprise it only in an amount of at most 50% by weight relative to the amou

Abstract: The invention relates to a method for providing required construction material information in the context of producing at least one three-dimensional object using a generative layer construction device, having the following steps: accessing data of a layer to be applied in a first data set in which for each layer to be applied during the production process, it is indicated whether construction material is to be solidified selectively in the layer and if so, at which locations in said layer the construction material is to be solidified; dividing the area of the layer to be applied into sub-regions; assigning weighting factors to the sub-regions, and ascertaining a construction material quantity to be supplied to the coating device in order to apply the layer, wherein the construction material quantity is ascertained using the weighting factors assigned to individual sub-regions and is provided as required construction material information.

Abstract: A method of manufacturing an object (3) in a build area (22) by means of a successive layer-by-layer solidification of a building material in powder form (18) comprises the steps: a) applying a layer of the building material in powder form (18) having a predetermined thickness d2 onto a layer of the building material already previously applied which has been solidified in a region corresponding to a cross section of the object (3), wherein, for applying the building material (18), a recoater (5, 15) is moved in a direction (B) across the layer already previously applied, and b) selectively solidifying the building material (18) applied in step a) in a region corresponding to a cross section of the object (3), wherein, prior to the application of a layer, for a solidified region having a thickness d1 in the layer applied before, the maximum (MAX) of the product of the extension of this solidified region in movement direction (B) of the recoater (5) and the thickness d1 is determined and during the applicati

Abstract: Disclosed is a method for supervision of an additive manufacturing process for producing a manufacturing product by selectively solidifying build-up material in a process chamber. The build-up material is irradiated according to predefinable irradiation control data; and a process chamber supervisory data set is generated based on the irradiation control data, supervisory data being encoded process chamber point by process chamber point in said data set. Quality data concerning the manufacturing process are determined based on the process chamber supervisory data set. A description is further given of a supervisory device suitable therefor a control device for an apparatus for additive manufacturing of manufacturing products, and an apparatus for additive manufacturing of manufacturing products comprising such a control device.

Abstract: A support structure for a three-dimensional object is provided, which support structure and three-dimensional object are produced by means of layer-wise applying and selectively solidifying of a building material. The support structure has a reduced resistance to compressional and/or tensional forces applied to the support structure in a first extension direction of the support structure and in said first extension direction the support structure has an alternating shape including a plurality of crests.

Abstract: A powder discharge module serves for a recoating device of an additive manufacturing device. A powder discharge module has a powder container for receiving the building material in powder form, and the powder container includes a supply opening for supplying the building material in powder form to the powder container and a discharge section facing the working plane, the discharge section having at least a first discharge device for discharging building material in powder form and at least one fluidization zone for fluidizing the building material in powder form using a gas in the powder container. The powder container further includes a first flow reduction element provided in the powder container.

Abstract: The invention describes a laser printing system (100) for illuminating an object moving relative to a laser 150 module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object an

Abstract: A transport unit for transporting an additively manufactured three-dimensional component including a transfer interface which can be closed in a substantially gastight manner for the three-dimensional component and/or a container containing the three-dimensional component and/or a platform carrying the three-dimensional component, which transfer interface is configured and disposed so that it cooperates with an output interface of an additive manufacturing machine which has manufactured the three-dimensional component within the framework of a component transfer as intended and when a connection is made as intended between the transfer interface and output interface a substantially gastight connection can be produced, and a storage chamber for storing the component and/or the container and/or the platform in a substantially gastight sealed state towards the outside.

Abstract: A method for producing a three-dimensional object by layer-wise applying and selectively solidifying a building material in powder form includes the steps of applying a layer of the building material over a working plane and selectively solidifying the layer at positions that correspond to a cross-section of the object to be produced by introducing energy and repeating the steps of applying and selectively solidifying until the object is completed. By doing so, the application step is carried out such that the application device moves at least twice over an area to be coated without an intermediate irradiation, and the step of selectively solidifying is carried out with an irradiation device that emits a radiation suited to solidify the building material.

Abstract: Disclosed are mixtures for use in additive manufacturing, wherein the powder mixture comprises first and second materials. The first material includes a metal alloy or a mixture of elemental precursors thereof, and is in powder form. The second material includes a reinforcement material comprising powder particles having a particle diameter of from 1 to less than 30 ?m (as determined by laser scattering or laser diffraction). The inventive powder mixtures allows for the processing to three dimensions objects which are free of cracking and which thus have favourable mechanical characteristics. Further disclosed are processes for the preparation of corresponding powder mixtures and three dimensional objects, three dimensional objects prepared accordingly and devices for implementing processes for the preparation of such objects, as well as the use of a corresponding powder mixture to supress crack formation in a three-dimensional object, which is prepared by additive manufacturing.

Abstract: A method of manufacturing an object comprises applying a layer of building material in powder form having a predetermined thickness onto a layer of the building material already previously applied which has been solidified in a region corresponding to a cross section of the object. A recoater is moved in a direction across the layer already previously applied, and the building material is solidified in a shape corresponding to a cross section of the object. Prior to the application of a layer, for a solidified region having a thickness in the layer applied before, the maximum of the product of the extension of this region in movement direction of the recoater and the thickness is determined and during the application of the layer, at least an additional powder amount proportional to the value of the maximum is additionally provided.

Abstract: A method is disclosed and includes providing a first data set marking an object cross-section, determining whether the length of a connecting line undercuts a specified minimum dimension, generating a second data such that, in the event falling the minimum dimension is undercut, a position lying within an object cross-section on the connecting line is marked as a position not to be solidified or to which a reduced radiation to be supplied, and for a position lying outside of the object cross-section, positions of an object cross-section directly above or below that are adjacent to this position are marked as positions not to be solidified or to which a reduced radiation is to be supplied, and integrating the second data set into the control command set.

Abstract: The present invention relates to a method for the post-treatment of particles (51) carried along in a process gas (50) of a device (1) for the generative manufacturing of three-dimensional objects, wherein the particles (51) are conducted to a filter chamber (40). An oxidant (60) is added to the particles (50) and that an oxidation reaction of the particles (50) with the oxidant (60) is initiated.

Abstract: A device for producing three-dimensional components of a powdery powder material by layered application of the powder material and partial solidification of the powder material of a layer by selectively irradiating points of the layer corresponding to a cross section of the component to be produced by means of at least one energy beam. The device includes a construction container for accommodating the powder material, a coating device for the layered application of the powder material, an overflow container for accommodating an unused material residue of a production process, and an intermediate container for accommodating the unused material residue of an application process and furthermore for delivery to the overflow container.

Abstract: A manufacturing method for generatively manufacturing a three-dimensional object by a layer-by-layer application and selective solidification of a building material includes applying a layer of the building material within a build area by means of a recoater moving in a recoating direction across the build area, selectively solidifying the applied layer of the building material at points corresponding to a cross-section of the object to be manufactured by means of a solidification device, and repeating the steps of applying and solidifying until the three-dimensional object is completed. A local action confined to a region between the recoating unit moving across the build area and the solidification device and/or compaction device moving behind the recoating unit across the build area is performed on the applied layer of the building material.

Abstract: A device for the making of a three-dimensional object by means of layer by layer consolidation of a powderlike construction material by electromagnetic radiation or particle beam has a control unit that controls an irradiation device such that the powder particles of the construction material are bonded together at the sites where the radiation impinges on the construction material. A selective heating device is designed so that any given partial surface of the construction field can be heated before and/or after to a plateau temperature, which is significantly higher than the temperature of at least a portion of the construction field outside the partial surface. The control unit actuates the selective heating device such that the partial surface has a predefined minimum distance from the edge of the construction field.

Abstract: The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a

Abstract: Disclosed are an apparatus and method for densifying or compacting powder material in the supply bin of an additive manufacture machine to improve the quality of the object being made. For example, a removable or portable apparatus can be applied to the surface of the supply bin once the bin has been filled. The apparatus can include a vibrational component that agitates the underlying powder to compact the material. The apparatus can then be removed during the remainder of the additive manufacturing process, which then follows in its normal course. A vacuum can also be used the remove of air or other gases that are emitted during the compaction process, for example, as voids are filled during densification.