PROCEDURE FOR THE QUICK REALIZATION OF PROTOTIPOS BY SINTERED LASER POWDER.

摘要

Procedure for rapid prototyping, by means of a laser, a powder or a mixture of powders, especially ceramics, comprising the steps consisting of: 1 / obtaining a succession of numbered superimposed sections (10) of an object (12 ) which is intended to make, from a three-dimensional representation of said object, 2 / spread in the form of a thin layer (14) the powder or the mixture of powders heated to a temperature close to the sintering temperature of said powder or of said mixture of powders, 3 / heating at the sintering temperature by sweeping with a laser beam (16) a selected part (18) of the layer, corresponding to one of the numbered sections (10 '') of the object (12) that is to be carried out, repeating steps 2 and 3 until obtaining all the numbered superimposed sections of the object to be performed, characterized in that the selected part (18) of the layer is sintered in solid phase merc ie to the supplementary contribution of energy of the laser and because the density of the powder or the powder mixture of the layer (14) is previously increased with respect to sintering.