Patent ID: 11911968
Assignee: EOS GMBH ELECTRO OPTICAL SYSTEMS
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A method for cooling a three-dimensional object manufactured by layer-wise selective solidification of a pulverulent building material and non-solidified building material in which the three-dimensional object is embedded, comprising:
providing a cooling container that contains the three-dimensional object and the non-solidified building material in which the three-dimensional object is embedded, the cooling container having a portion permeable for a fluid medium;
preparing the fluid medium in a preparation unit, comprising:
providing a carrier gas and specifically enriching the carrier gas with an additional component comprising a further gas and/or a liquid; and/or
providing a gas mixture and adjusting the composition of the gas mixture in a predetermined manner by partial or complete withdrawal of one or more mixture components;
passing the fluid medium through the portion permeable for the fluid medium into the cooling container and through the non-solidified building material in which the three-dimensional object is embedded;
conducting the fluid medium in a circular flow back to the preparation unit and enriching the carrier gas with the additional component and/or adjusting the composition of the gas mixture in the predetermined manner; and
again passing the fluid medium from the preparation unit through the portion permeable for the fluid medium into the cooling container and through the non-solidified building material in which the three-dimensional object is embedded.