POWDER DISPENSING UNIT, POWDER SPREADING UNIT, AND VIBRATORY COMPACTION SYSTEM OF LAMINATION MOLDING SYSTEM AND METHOD THEREFOR

摘要

To solve the problem that, when powder is spread on a build plate or a powder bed by a doctor blade or a roller in addition to the excess powder on the build plate, there is a possibility that inconsistent and uneven powder distribution is caused on the whole build plate or the powder bed, thereby stripes may be generated in the spread powder, and/or packing density of the powder on the build plate may be decreased, and thus porousness of a component increases and/or there is a possibility that adhesive property between a sedimentary layer and a fusion layer is reduced.SOLUTION: A lamination molding system includes a build plate and a powder spreading unit having a plurality of recoater blades configured to spread powder onto the build plate. The powder spreading unit including a base member and the plurality of recoater blades is coupled to the base member and configured to spread powder onto the build plate.SELECTED DRAWING: Figure 2A