ADDITIVE MANUFACTURING MACHINE COMPRISING A DEVICE FOR THE DISTRIBUTION OF POWDER ONTO A MOBILE SURFACE USING A SCREW DISTRIBUTOR

摘要

The invention relates to an additive manufacturing machine (10), this additive manufacturing machine comprising a manufacturing chamber (12), the machine comprising at least one mobile powder receiving surface (28) and a manufacturing zone (20) situated in the manufacturing chamber, a powder spreading device (30) and at least one device (32) for dispensing powder onto the mobile receiving surface. The dispensing device comprises a buffer reservoir (40) connected to a supply of powder (42) and a powder dispensing point (P1) underneath which a mobile receiving surface (28) moves, and the dispensing device comprises a screw distributor (44) connecting the buffer reservoir (40) and the powder dispensing point (P1) and making it possible to generate a continuous stream of powder from the buffer reservoir to the powder dispensing point.