METHOD OF APPLYING MULTIPLE MATERIALS WITH SELECTIVE LASER MELTING ON A 3D ARTICLE
First Claim
1. A method for manufacturing an article in accordance with three-dimensional CAD data of a model of a body, the method comprising:
- depositing layers of a first metallic powder material, including successively depositing several layers of the first metallic powder one on top of the other, and heating each layer of first metallic powder to a specified temperature with a focused laser or electron beam applied to a given area corresponding to a selected cross-sectional area of the model of the article, said heating performed before depositing a next layer, wherein said heating comprises guiding the beam over each layer of powder material in accordance with the CAD cross-sectional data of the selected cross-sectional area of the model so that each layer of powder is fixed to the layer below;
applying a tape, sheet, foil, or three-dimensional pre-form of a second material to the article, the second material being different from the material of the first metallic powder; and
heating the second material with a focused laser or electron beam to a specified temperature such that the tape, sheet, foil, or pre-form is made molten by the laser or electron beam, wherein the focused beam is applied to a given area corresponding to a selected cross-sectional area of the model of the article under formation of a new layer or part made of second material integral with the article.
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Accused Products
Abstract
In a method for manufacturing an article (1), particularly a prototype of a product or component, a tool prototype or spare part, by using selected laser melting, for the application onto the article (1) of a layer (13) or portion of a second metallic material, which is different from the material of the first metallic powder (4), a tape (12), sheet (14), foil or three-dimensional pre-form (18) of a second material is applied to the article (1) and is heated by a focused laser or electron beam (6) to a specified temperature such that the tape (12), sheet (14), foil or pre-form, respectively, are made molten by the electron laser beam (6), wherein the focused beam (6) is applied to a given area corresponding to a selected cross-sectional area of the model of the article (1) under formation of a new layer or part made of second material integral with the article (1).
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Citations
20 Claims
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1. A method for manufacturing an article in accordance with three-dimensional CAD data of a model of a body, the method comprising:
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depositing layers of a first metallic powder material, including successively depositing several layers of the first metallic powder one on top of the other, and heating each layer of first metallic powder to a specified temperature with a focused laser or electron beam applied to a given area corresponding to a selected cross-sectional area of the model of the article, said heating performed before depositing a next layer, wherein said heating comprises guiding the beam over each layer of powder material in accordance with the CAD cross-sectional data of the selected cross-sectional area of the model so that each layer of powder is fixed to the layer below; applying a tape, sheet, foil, or three-dimensional pre-form of a second material to the article, the second material being different from the material of the first metallic powder; and heating the second material with a focused laser or electron beam to a specified temperature such that the tape, sheet, foil, or pre-form is made molten by the laser or electron beam, wherein the focused beam is applied to a given area corresponding to a selected cross-sectional area of the model of the article under formation of a new layer or part made of second material integral with the article. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification