Degussa Aktiengesellschaft

Evonik Operations Gmbh

Evonik Degussa Gmbh

Sigrid Hessel

Maik Grebe

Franz-Erich Baumann

Sylvia Monsheimer

Wolfgang Diekmann

Ulrich Simon

Maximilian Gruhn

Frank-Erich Baumann

A device produces three-dimensional objects layer by layer in a powder bed fusion process. The device includes a building space, at least one energy source, a building area with a building space platform and a building space container laterally confining the building space platform. The building space platform has an upper side, facing a powder, and an underside, facing away from the powder. The upper side of the building space platform includes a material with a thermal conductivity of at least 20 W/(m&#xb7;K) and the underside of the building space platform includes a material with a thermal conductivity of a maximum of 0.5 W/(m&#xb7;K). The contact surface of the upper side of the building space platform with respect to the powder or with respect to the cooling medium is raised by at least 20% in comparison with the planar surface of a building space platform.

Device for producing three-dimensional objects layer by layer

Moldings can be produced from a polymer powder containing at least one block polyetheramide containing an oligoamide dicarboxylic acid and a polyetheramine; wherein the powder is suitable for use in a layer-by-layer process in which regions of a powder layer are selectively melted via introduction of electromagnetic energy.

Polymer powder with block polyetheramide, use in a shaping process, and moldings produced from this polymer powder

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Haltern am See, Germany

Sigrid Hessel