Voxeljet Technology Gmbh

Voxeljet Ag

Other

Exone Gmbh

Rainer Hochsmann

Ingo Ederer

The invention relates to a method for producing a part using a deposition technique. 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 layer composite is built up in the absence of hardening agent. Once construction is complete, the layer composite is hardened.

Method for producing a part using a deposition technique

Disclosed is a method for unpacking a component, produced by means of an additive manufacturing process, from a particulate material fillof loose, unconsolidated particulate material, which is arranged together with the componentin a construction spaceand surrounds the component. In order to unpack the component, the particulate material fillsurrounding the componentis transferred into a fluidized bed, so that the loose, unconsolidated particulate material is fluidized, and the fluidized, unconsolidated particulate material is drained downward off the construction space. In addition, a device for use in the method is described.

Method and device for unpacking a component

New methods and systems for manufacturing a three-dimensional form, comprising steps of providing a plurality of particulates; contacting the particulates with an activation agent; contacting particulates having the activation agent with a binder material that is activatable by the activation agent; at least partially hardening the binder for forming a layer of the three-dimensional form; and repeating these steps to form the remainder of the three-dimensional form. Following sequential application of all required layers and binder material to make the form, the unbound particles are appropriately removed (and optionally re-used), to result in the desired three-dimensional form. The invention also contemplates a novel method for preparing a form, where unbound particulates free of binder material are re-claimed.

Methods of manufacturing layered three-dimensional forms

Described is a procedure for layered composition of models, whereby at least a first material is applied to an assembly platform, followed by selective application of a second material layer; these two application steps are repeated until the required model is achieved and both materials form a solid structure in an appropriate mixture ratio. The first material comprises a molding sand; the first and/or second material comprises a bonding agent encompassing a salt-crystal binder and/or protein binder.

Method for the layered construction of models

Methods and systems for the manufacture of layered three-dimensional forms

A rapid-prototyping production method for producing a structural body by deposition, in several subsequent deposition steps, of subsequent layers of a building material one onto the other. The building material is selectively deposited in each layer in a liquid state in the form of droplets and being caused to solidify when deposited. After deposition, the layer is lowered into a supporting fluid which has a liquid state and has a density which is at least the same as the density of the building material.

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Genderkingen, Germany

Rainer Hochsmann