APPARATUS AND PROCESS FOR CONTINUOUS GENERATIVE PRODUCTION
First Claim
1. A process for producing products of individual geometry, in particular dental prostheses or dental auxiliary parts, comprising the steps:
- producing a plurality of products on the surface of a substrate plate by means of selective hardening, in particular by means of selective sintering or melting,applying a hardenable material in successive layers,selectively hardening one or more predetermined regions after each layer application by means of an energy-rich radiation and in so doing connecting said regions to one or more regions of the subjacent layer,wherein the predetermined region or regions is or are predetermined on the basis of a cross-sectional geometry of the product in the respective layer,characterised in that the successive layers are applied in layer planes which are oriented inclinedly relative to the surface of the substrate plate.
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Abstract
The invention concerns a process for producing products of individual geometry, in particular dental prostheses or dental auxiliary parts, comprising the steps of producing a plurality of products on the surface of a substrate plate by means of selective hardening, in particular by means of selective sintering or melting, in which the material is applied in successive layers, after each layer application one or more predetermined regions of the applied layer is selectively hardened by means of an energy-rich radiation and connected to one or more regions of the subjacent layer, wherein the predetermined regions are predetermined on the basis of a cross-sectional geometry of the product in the respective layer. According to the invention the successive layers are applied in layer planes oriented inclinedly relative to the surface of the substrate plate. The invention further concerns an apparatus for carrying out such a process.
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Citations
16 Claims
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1. A process for producing products of individual geometry, in particular dental prostheses or dental auxiliary parts, comprising the steps:
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producing a plurality of products on the surface of a substrate plate by means of selective hardening, in particular by means of selective sintering or melting, applying a hardenable material in successive layers, selectively hardening one or more predetermined regions after each layer application by means of an energy-rich radiation and in so doing connecting said regions to one or more regions of the subjacent layer, wherein the predetermined region or regions is or are predetermined on the basis of a cross-sectional geometry of the product in the respective layer, characterised in that the successive layers are applied in layer planes which are oriented inclinedly relative to the surface of the substrate plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for producing products of individual geometry, including
a substrate plate, a material application apparatus for applying material layers to and above the substrate plate, a radiation source for a high-energy beam, beam guidance means for guiding the beam on to predetermined regions of a material layer applied to the substrate plate, characterised in that the material application apparatus is adapted to apply the material in a plane which is oriented inclinedly, in particular at an angle which is less than or equal to the angle of repose of the material, relative to the surfaces of the substrate plate, to which the material is applied.
Specification