Additive manufacturing technology for manufacturing objects with composite structures

摘要

An additive manufacturing device for manufacturing an article with a composite structure, i. H. with different integrally formed areas with different materials, includes a parts assembly module, a powder supply module, a distribution mechanism, a power jet arrangement, a collector / feeder tube, a powder collector and a powder feeder. A layer of a first powder material is distributed. An inlet opening of the collector / feeder tube is engaged with a target area of the layer. The powder collector collects the first powder material from the target area via the tube, thus creating a free space in the target area. The powder feeder separates a second powder material into the free space via the pipe. Consequently, a surface layer of the powder bed comprises the first powder material of the layer and the second powder material that is supplied in the target region of the layer. The surface layer is sintered or melted.