APPARATUS FOR ADDITIVELY MANUFACTURING AT LEAST ONE THREE-DIMENSIONAL OBJECT FEATURING AN EDDY CURRENT PARTICLE SEPARATION DEVICE

摘要

Apparatus (1) for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective irradiation and consolidation of layers of build material (3) which can be consolidated by means of at least one energy beam (4), comprising:- a process chamber (7) in which a process gas stream chargeable or charged with non-consolidated particulate build material is generated during operation of the apparatus (1);- a streaming channel structure (16) comprising at least one streaming channel element (15) for a respective process gas stream the streaming channel element (15) communicating with a process gas stream inlet (9a) and/or a process gas stream outlet (9b) of the process chamber (7);- a particle separation device (18) configured to separate non-consolidated build material from the process gas stream streaming through the at least one streaming channel element (15).