Device and Method for a Layerwise Mfg. of a 3-Dimensional Object From a Building Material in Powder Form

摘要

A method is provided, by which a three-dimensional object is manufactured by a subsequent solidification of layers of a building material in powder form at the positions in the respective layer that corresponds to the cross-section of the object by means of the action of a laser or another energy source,;wherein as building material in powder form a material is used which contains the old powder that has remained as unsolidified powder in the manufacturing of one or more previously formed objects and a proportion of new powder that has not been used before in any manufacturing process, characterized in thatUSthe building material in powder form is mechanically consolidated when a layer is applied.