Abstract:
The present invention relates to a method for producing three-dimensional objects based on computer-provided data, whereby a material is deposited in layers in a process chamber and the material is selectively solidified and/or bonded using a bonding apparatus and/or a solidifying apparatus in the process chamber, these steps being repeated. A conveyance of the material proceeds during the build process and proceeds continuously, sequentially and evenly up to an unpacking position.
Abstract:
The invention relates to a method for producing a part using a deposition technique, especially a part in the form of a casting mold or a casting core. A layered composite is built up in layers, the individual layers each containing particulate material and binding material as well as optionally, a treatment agent. The layers maintain a predetermined porosity. The binding agent can be hardened especially with a fluid hardening agent. The layer composite is built up in the absence of the hardening agent. Once construction is complete, the layer composite is flooded with the fluid hardening agent using the residual porosity of the predetermined partial areas and in this way, is hardened.
Abstract:
A method or procedure for the construction of a laminated compound or mould made up of a number of layers of particle material on top of each other, which are hardened and joined to each other in predetermined onsite areas, which can differ from each other depending on position and expansion, so that from the predetermined hardened areas of the laminated compound at least one mould is formed. The layers are deposited individually one after another in predetermined layer thickness by the dispensing of particle material from a dispensing device during its movement above a working field and according to computer data in predetermined areas.
Abstract:
A method or procedure for the construction of a laminated compound or mould made up of a number of layers of particle material on top of each other, which are hardened and joined to each other in predetermined onsite areas, which can differ from each other depending on position and expansion, so that from the predetermined hardened areas of the laminated compound at least one mould is formed. The layers are deposited individually one after another in predetermined layer thickness by the dispensing of particle material from a dispensing device during its movement above a working field and according to computer data in predetermined areas.
Abstract:
The invention relates to an interchangeable container (1) for a device used to construct models. Said container forms a substantially delimiting frame, into which a workpiece platform (2) that acts as a base can be inserted. The interchangeable container (1) contains a support (3) onto which the workpiece platform (2) is introduced.
Abstract:
Described herein is a device for pattern building in layers, which has a frame (1), a vertically movable and interchangeable workpiece platform (17), and a material feeder with a spreader (4), whereby the spreader (4) serves to feed material from a storage bin situated in the workspace above the workpiece platform (17), and the workpiece platform (17) is fixed at least when building a pattern. The workpiece platform (17) is accordingly loaded into the device from one side and unloaded from the other side of the device.
Abstract:
The invention relates to a device for manufacturing models layer by layer. The inventive device comprises a frame (1), a vertically adjustable and exchangeable workpiece platform (17)m and a device for feeding the material comprising a coating applicator (4). Said coating applicator (4) serves to feed material from a storage container to a process zone above the workpiece platform (17), said workpiece platform (17) being fixed in the device at least during manufacturing of a model. The workpiece platform (17) is introduced on the one side of the device and extracted on the other side of the device.
Abstract:
Disclosed is a piezo bending transducer drop-on-demand print head and a method of actuating it. Each of the piezo bending transducers of a piezo bending transducer drop-on-demand print head is subjected to a sequence, corresponding to the desired print image, of triggering pulses each effecting a drop discharge movement and, assigned to each triggering pulse, each piezo bending transducer neighboring the piezo bending transducer triggered by the triggering pulse is subjected to a compensating pulse deflecting it. The piezo bending transducer drop-on-demand print head has a nozzle plate with nozzles arranged in series. Respectively assigned to each nozzle is a piezo bending transducer which can be subjected to a triggering pulse accompanied by a drop being discharged from the respective nozzle. There is a control device by which each of the piezo bending transducers can be subjected to triggering pulses and compensating pulses in accordance with the method of the invention.
Abstract:
The present invention relates to a method for producing three-dimensional components, using a three-dimensional printing method, an auxiliary structure being additionally formed beyond an extension of the one or more components during the construction of components. The invention also relates to an auxiliary structure for components produced by means of three-dimensional printing methods, the auxiliary structure being constructed along with the component and extending beyond a dimension of the one or more components.
Abstract:
A method is described here for the layerwise construction of models, wherein, in a building region, a particulate material is applied layerwise and selectively cured. These steps are repeated until a desired model is obtained. The material comprises in this case a particulate building material and a spray-dried alkali metal silicate solution. Selective activation of the curing proceeds using a water-comprising solution.