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METHOD OF APPLYING MULTIPLE MATERIALS WITH SELECTIVE LASER MELTING ON A 3D ARTICLE

  • US 20110106290A1
  • Filed: 10/29/2010
  • Published: 05/05/2011
  • Est. Priority Date: 10/30/2009
  • Status: Active Grant
First Claim
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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:

  • 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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