DEVICE AND METHOD FOR DEPOSITING GRANULAR MATERIAL FOR ADDITIVE MANUFACTURE

摘要

The invention relates to a device for depositing a layer of granular material on a surface, comprising: - a hopper; - a scraper; - Means for moving the hopper and the scraper relative to the depositing surface; the hopper comprising: - a plurality of discharge orifices (331 ... 335); - an upper part (310) and a lower part (320), comprising two transverse walls (321, 322) inclined towards the orifices; - a transverse compartmentalization, each compartment comprising two walls (341, 342, 343) perpendicular to the transverse walls and inclined towards a discharge orifice, so as to form opposite a discharge orifice a conduit, the consecutive walls (342, 343 ) of two compartments being joined at a corner to meet them.