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Device and method for manufacturing a three-dimensional object by means of an application device for building material in powder form

  • US 9,327,450 B2
  • Filed: 10/31/2007
  • Issued: 05/03/2016
  • Est. Priority Date: 11/10/2006
  • Status: Active Grant
First Claim
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1. A device for manufacturing three-dimensional object by solidification of layers of a powder material at those positions corresponding to the respective cross-section of the object, said device including:

  • an application device for applying powder in layers, the application device being movable over a building area and having;

    a first longitudinal wall and a second longitudinal wall that are connected to one another via side walls so as to form a supply chamber having a longitudinal direction substantially transverse to a direction of movement of the application device, said first and second longitudinal walls being substantially longer than said side walls,a device for fluidizing the powder material by means of a fluidizing gas that is fed to the application device, anda device for an open loop and/or closed loop control of the pressure and/or the flow rate of said fluidizing gas,the device for manufacturing three-dimensional object further comprising an irradiation device for irradiating powder for solidification of the powder material.

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