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Method of producing industrial components by the action of light on a polymerizable or crosslinkable liquid substance without requiring supports

  • US 5,598,340 A
  • Filed: 02/01/1995
  • Issued: 01/28/1997
  • Est. Priority Date: 06/05/1992
  • Status: Expired due to Term
First Claim
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1. Method of manufacturing a set E of three-dimensional solid components by phototransformation of a polymerizable or crosslinkable organic material, by absorption of light by polymerization or cross-linking photoinitiators, which comprises:

  • a) providing at least one source of light radiation;

    b) providing automated members for establishing and for superposing, automatically, thin layers of the material;

    c) confining the light emitted by the source of light radiation in the form of at least one point of impact on the material;

    d) automatically moving said at least one point of impact on the material;

    e) storing the geometrical shape of the set E;

    f) computing a set of elementary volumes such that, once they are phototransformed, said elementary volumes altogether constitute a set F of components such that E is included in F;

    g) controlling and driving all the automated members necessary for the manufacture; and

    h) including in the set F of components constructed for the manufacture of the set E, a set G of solid particles, which form during the manufacturing step, a powder of phototransformed material mixed with material still in liquid form, said particles not necessarily having the same geometrical shape.

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