Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (6, 6?) generated via an irradiation device (4), wherein the irradiation device (4) comprises at least one beam guiding unit (7, 7?) that is adapted to guide the energy beam (6, 6?) across a build plane (9) in which build material (3) is applied to be irradiated, wherein the at least one beam guiding unit (7, 7?) is arranged behind a point of impact (20) of the energy beam (6, 6?) in the build plane (9), in particular all possible points of impact (20), with respect to a streaming direction (16) of the gas stream (13) streaming over the build plane (9).

Abstract: A formulation for a casting compound is provided that includes a base slip with a proportion between 18% and 36% by weight, quartz glass particles with a proportion between 40% and 70% by weight, and particles of an admixture having at least one multicomponent glass with a proportion between 10% and 40% by weight. The base slip contains water as dispersion medium with a content between 30% and 50% by weight and ultrafine Si0 2 particles colloidally distributed therein with a content between 50% and 70% by weight, and wherein the total water content in the formulation is 10% to 20% by weight. A composite material is also provided that has a largely crystalline Si0 2 matrix and particles of a multicomponent glass embedded therein.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source (4), which apparatus (1) comprises an application unit (6) with at least one application element (7) adapted to apply build material (3) on a build plane (8), characterized in by a determination unit (12) that is adapted to determine contact information relating to a force acting on the at least one application element (7), preferably during an application process.

Abstract: The invention relates to a back-side contact solar cell including a semiconductor substrate, in particular a silicon wafer, including a front side and a back side, the solar cell having electrodes of a first polarity and electrodes of a second polarity on the back side, wherein a tunnel layer and a highly doped silicon layer are positioned under the electrodes of a first polarity, and the electrodes of the second polarity make direct electrical and mechanical contact with the semiconductor substrate.

Abstract: Method for additively manufacturing at least one three-dimensional object, comprising assigning a parameter indicative of the time required for irradiating a respective irradiation zone to a plurality of irradiation zones of a respective build material layer, assigning a first energy beam to the irradiation zone whose parameter indicates that the irradiation zone has the longest and second longest time required for irradiating and irradiating these irradiation zones with at least one respective first and second energy beams, wherein after irradiation and consolidating the irradiation zone whose parameter indicates that the irradiation zone has the second longest time required for irradiating and irradiating with the second energy beam is completed, assigning the at least one second energy beam to the irradiation zone whose parameter indicates that the irradiation zone has the third longest time required for irradiating and irradiating this irradiation zone with the at least one second energy beam.

Abstract: Method for operating an apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source, wherein irradiation data define at least two regions (8, 9) of object data relating to a three-dimensional object (2), which regions (8, 9) are irradiated based on at least two different irradiation parameters.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source (4), which apparatus (1) comprises an application unit (6) with at least one application element (7) adapted to apply build material (3) on a build plane (8), characterized in by a determination unit (12) that is adapted to determine contact information relating to a force acting on the at least one application element (7), preferably during an application process.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source (4), which apparatus (1) comprises an application unit (6) with at least one application element (7) adapted to apply build material (3) on a build plane (8), characterized in by a determination unit (12) that is adapted to determine contact information relating to a force acting on the at least one application element (7), preferably during an application process.

Abstract: Method for operating an apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (4), wherein at least one part of a first layer (7) is irradiated based on at least one first irradiation parameter and at least one part of a second layer (8) is irradiated based on at least one second irradiation parameter, wherein the at least one first irradiation parameter and the at least one second irradiation parameter are different for the at least two layers (7, 8).

Abstract: Bag-on-valve for a pressurized container, in particular pressurized cans (40), for dispensing viscous to pasty products, comprising a valve disk (3), a valve body (6) arranged on the valve disk (3), a stem (5) guided in a central cutout of the valve body (6), with at least one inlet opening (9) for the product contained in the bag (30), said opening being opened by actuating the stem, at least one outlet opening (10), an elastic element (8) acting on the stem (5), sealing elements (12) acting between valve disk (3) and valve body (6) and between valve body (6) and stem (5) as well as a bag (30) arranged on valve (1) for the product to be discharged through the valve (1), wherein the bag (30) is fixed to a retaining element (2) which has a central passage (23), said retaining element (2) having a laterally extending retaining plate (22) which is connected in a tightly sealing manner to a collar (7) of the valve body, said collar extending vertically on the can side.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source (4).

Abstract: Method for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective irradiation and consolidation of build material layers (3), whereby at least one build material layer (3) which is to be selectively irradiated and consolidated comprises a plurality of irradiation zones (IZ) being separately irradiatable and consolidatable with at least one energy beam (5a, 5b), comprising assigning a parameter (P1-P4) indicative of the time required for irradiating a respective irradiation zone to a plurality of irradiation zones (IZ1-IZ4) of the respective build material layer (3), assigning at least one first energy beam (5a) to the irradiation zone (IZ1) whose parameter (P1) indicates that the irradiation zone (IZ1-IZ4) has the longest time required for irradiating and irradiating this irradiation zone (IZ1) with the at least one first energy beam (5a), assigning at least one second energy beam (5b) to the irradiation zone (IZ2) whose parameter (P2) indicates that t

Abstract: Method for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective irradiation and consolidation of build material layers (3), whereby each build material layer (3) which is selectively irradiated and consolidated comprises at least one irradiation area (IA) which is irradiated and consolidated by means of at least one energy beam (5), wherein the irradiation area (IA) comprises at least one first sub-area (SA1) having a first heat conductance capability defined by its orientation and/or position relative to non-consolidated build material areas adjacent to the irradiation area (IA) and at least one second sub-area (SA2) having a second heat conductance capability higher than the first heat conductance capability of the first sub-area (SA1) defined by its orientation and/or position relative to non-consolidated build material areas adjacent to the irradiation area (IA), whereby for at least one irradiation area of at least one build material layer (3) whic

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (6, 6?) generated via an irradiation device (4), wherein the irradiation device (4) comprises at least one beam guiding unit (7, 7?) that is adapted to guide the energy beam (6, 6?) across a build plane (9) in which build material (3) is applied to be irradiated, wherein the at least one beam guiding unit (7, 7?) is arranged behind a point of impact (20) of the energy beam (6, 6?) in the build plane (9), in particular all possible points of impact (20), with respect to a streaming direction (16) of the gas stream (13) streaming over the build plane (9).

Abstract: Method for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective irradiation and consolidation of build material layers (3), whereby each build material layer (3) comprises at least one irradiation area (IA) which is to be irradiated and consolidated by means of at least one energy beam (5), whereby the at least one irradiation area (IA) is irradiated on basis of a main irradiation pattern (MP) for consolidating the irradiation area (IA), the main irradiation pattern (MP) comprising a plurality of irradiation pattern elements (IPE) being separately irradiatable or irradiated with the at least one energy beam (5), whereby the amount of energy input into the respective irradiation pattern element (IPE) in the main irradiation step is different from the amount of energy input into the irradiation pattern element (IPE) in the at least one additional irradiation step.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (4) which can be consolidated by means of an energy beam (9), which apparatus (1) comprises an irradiation device (6) adapted to generate the energy beam (9), wherein the irradiation device (6) comprises a beam guiding unit (8) that is adapted to guide the energy beam (9) in a build plane (5) in which build material (4) is applied, wherein the irradiation device (6) is adapted to generate at least one segmented track (11) comprising at least two first track segments (12) in which build material (4) is to be irradiated with the energy beam (9).

Abstract: Method for operating an apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (4), wherein at least one part of a first layer (7) is irradiated based on at least one first irradiation parameter and at least one part of a second layer (8) is irradiated based on at least one second irradiation parameter, wherein the at least one first irradiation parameter and the at least one second irradiation parameter are different for the at least two layers (7, 8).

Abstract: Method for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective irradiation and consolidation of build material layers (3), whereby each build material layer (3) comprises at least one irradiation area (IA) which is to be irradiated and consolidated by means of at least one energy beam (5), whereby the successive layerwise selective irradiation and consolidation of respective irradiation areas (IA) is performed on basis of at least one irradiation parameter set (IPS) resulting in a specific amount of energy input into the irradiation area (IA) of a respective build material layer (3).

Abstract: Method for operating an apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source, wherein irradiation data define at least two regions (8, 9) of object data relating to a three-dimensional object (2), which regions (8, 9) are irradiated based on at least two different irradiation parameters.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source.