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US 7,438,846 B2Granted
Apparatus and method for the non-destructive separation of hardened material layers from a flat construction plane
AssigneeEnvisiontec GmbH
InventorHendrik John
Life of this patent
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Abstract
An apparatus and a method for the separation of a material layer (4) hardened on a flat plane (2) serving as a reference by means of a flexible, elastic separating layer (1) arranged between plane and material layer and designed in the form of a film or a gel-like material, are provided.
Claims21
A method for separation of a material layer hardened on a flat plane, which serves as a reference, the method comprising:
- providing a separation layer of a flexible, elastic separating film arranged between the flat plane and the material layer, wherein the film does not adhere to the plane and wherein a gaseous or liquid medium can flow between the separating layer and the plane, wherein the flat plane at a surface facing the separating layer has a certain surface roughness to ensure supply or removal of the medium;
- hardening a layer of nonhardened material adjacent to the separation layer to form a layer of hardened material;
- and separating the layer of hardened material from the separating layer.
A method for separation of a material layer hardened on a flat plane, which serves as a reference, the method comprising:
- providing a separation layer of a flexible, elastic separating film arranged between the flat plane and the material layer, wherein the film does not adhere to the plane and wherein a gaseous or liquid medium can flow between the separating layer and the plane, wherein the separating layer at a surface facing the flat plane has a microstructure to ensure supply or removal of the medium;
- hardening a layer of nonhardened material adjacent to the separation layer to form a layer of hardened material;
- and separating the layer of hardened material from the separating layer.
Dependencies are inferred from the claim text.