Translation of "Generative verfahren" in English

You need metal powder for an innovative generative process?

Generative methods for manufacturing 3D structures, particularly those made of plastic, have been known for some time.

Powder-based generative rapid prototyping processes are known, for example, under the names 3D laser sintering or 3D printing.

Starting out from base plate 5, rib 1, element leadthrough 14 thereof and conduit 2 located in element leadthrough 14 (at the top in the arrow direction in FIG. 1) are built together simultaneously in the generative process in that conduit 2 is already located in the predefined or correct position thereof in rib 1, respectively element leadthrough 14 thereof.

In November 2016, he became the expert group manager of Additive Manufacturing and Functional Layers at the Fraunhofer Institute for Laser Technology ILT in Aachen.

Additive manufacturing refers to generative methods with which physical parts are directly manufactured from 3D CAD models.

Moreover, producing the outer layer 14 can be carried out on the basis of a data set of the tooth structure database and by means of computer-assisted methods (in particular CAD/CAM and generative methods).

These data are then used via computer-assisted manufacturing devices (in particular CAD/CAM, generative methods) for producing the components of the tooth replacement to be prepared (step 121).

Additive or generative methods known per se from prior art can also be used just as well for production purposes.

Because the production of such components is very complicated, an attempt has already been made to produce such components by generative methods as well and this can be advantageous in the case of small-scale serial production, for example.

With the aid of the generative process, annular space opening 34 of the particular annular channel may be integrated into housing 1 in terms of flow and structure in such a way that the boundary layer removal takes place under relatively little loss, and in addition an axial elongation of annular space 4 is prevented.

The invention relates to particles for producing a three-dimensional object by means of layer-building processes (powder-based generative rapid prototyping processes), to processes for producing a three-dimensional object therefrom, and to an object producible using the particles or the processes.

The object of the invention is therefore to provide a method for coating powder material which prevents an agglomeration of the primary particles and leads to improved storage stability, handling and distinctness of image, which is suitable for generative RP processes, in particular 3D binder printing, and also to present a 3D binder printing process for the production of bodies or sintered bodies with little shrinkage.

The invention is not restricted to laser sintering, but can likewise be used for other generative processes for producing three-dimensional objects, in which powder is used.

The object of the invention is therefore to provide coated particles for powder-based generative rapid prototyping processes, in particular 3D binder printing, which exhibit improved storage stability and improved handling and allow a higher distinctness of image, and also to provide methods for producing bodies or sintered bodies from these particles with low shrinkage.

The object of the invention is to improve a system for executing a generative 3D process (e.g., SLS system, SLM system) with an IR sensor used therein and, if necessary, a laser or electron beam (EBM) for the generative process described at the outset (SLS process, SLM process) in such a way that the described disadvantages to prior art can be largely eliminated.

For example, known generative processes such as selective laser melting (SLM), direct metal laser sintering (DMLS), and/or electron beam processes can be used.

Specifically, if Acist hadn’t used FDM’s additive manufacturing method, the seven parts that now complete the display would have been 15 — more than double the parts to manufacture and stock.

Customers such as NASA, the German Aerospace Center (DLR), Honeywell, Snecma, Aerojet/Rocketdyne and EADS subsidiary Astrium Space Transportation see the additive process as the next broad-scale step in the evolution of modern production.

Before settling on FDM, the TDF considered “a multitude” of the other additive processes, says Weatherly.

My preliminary considerations for «Oval Process» as a document for linking an interactive software environment and sound installation in a public space were as follows: To begin with, I didn’t assume the role of a creative Self. Instead, I wanted only to suggest the generative processes.

For example, the generally known selective laser sintering process can be used as the generative method.

Alternatively, laser powder deposition welding or another generative method for producing the bearing cage can also be utilized.

The density of the unsintered ceramic green body is higher than with all known generative processes.

However, alternatively, the component could also completely or partly be produced using an additive process.

The silicone rubber compositions of the invention are used for production of elastomeric shaped bodies by means of ballistic additive 3D printing methods.

Infected from the euphoria of generative processes, the first production unit was installed promptly.

Among the more recent and particularly interesting powder-based generative rapid prototyping (RP) processes is the 3D binder printing process.

In addition to what are termed generative processes (for example distillation, extraction, adsorption), oxidative waste water treatment processes (for example wet oxidation, ozonolysis, evaporation/combustion) are used especially to treat organically polluted waste waters.

In this additive process, using 3D design data, metal powder is melted with the laser and components are gradually created layer by layer.

Through additive processes, components are created from powder and light alone using 3D printers for metals. Highly productive laser processing machines enable innovative applications in the fields of coating and repair through laser metal deposition.

Initially, there were small prototypes, orthodontic aids, and designer jewellery, which were manufactured with generative processes.

Stereolithographic processes for the preparation of dental shaped articles, such as inlays, crowns or bridges, are highly advantageous particularly with ceramic materials, because the impression-taking and casting processes and the grinding and milling operations, respectively, which involve considerable manual outlay in the dental laboratory, can thus be greatly simplified and at the same time the large material loss which occurs with non-generative processes can be avoided.

Producing the incisal shell 14 can also be carried out on the basis of a data set of the tooth structure database and by means of computer-assisted methods (in particular CAD/CAM and generative methods).

The method according to the invention is not only applicable to laser sintering, but to all generative methods, in which a powdery or liquid material is used, which is solidified with energetic radiation.

As a disadvantage of the known seals produced by means of generative or additive methods, in particular honeycomb seals, is the circumstance, however, that they must be built up with a minimum wall thickness that is pre-defined by the method parameters.

In an advantageous embodiment of the method according to the invention, the free-forming method is a generative method and comprises at least the following steps:

The invention relates to a method for producing a molded body, having a silicon carbide support matrix and an integral carbon structure, wherein a base body on the basis of a powder mixture containing silicon carbide or silicon and carbon and of a binder is built in layers in a generative method, and wherein a pyrolysis of the base body is effected for realizing the molded body after the binder has been cured, wherein the carbon content of the carbon structure is adjusted by way of the pyrolysis of the binder and by way of the carbon content of the powder mixture or infiltration of a carbon material into the silicon carbide support matrix.