Device and method for the generative production of a three-dimensional object

US11981082B2 · kind B2 · utility

Assignee

• EOS GmbH Electro Optical Systems · DE

Inventors

• Martin Schade · Munich, DE
• Robert Achim Domröse · Germering, DE
• Martin Leuterer · Olching, DE
• Michael Göth · Munich, DE
• Maximilian Mittermüller · Munich, DE
• Markus Kuchenbaur · Munich, DE

Key dates

• Filing date: Mar 29, 2018
• Grant date: May 14, 2024
• Expiry date: May 7, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A control method serves for controlling at least one solidification device of an additive manufacturing device for manufacturing a three-dimensional object by means of an additive layer build method in which at least one object is manufactured by repeated application of a layer of a building material to a build area and by selective solidification of the applied layer at positions corresponding to a cross-section of the object to be manufactured, wherein a gas having a plurality of flow directions which essentially are not aligned in the same direction flows across the build area. The method includes receiving and/or determining a distribution of the flow directions of the gas above the build area, assigning a reference flow direction to an area of the build area in dependence on the distribution of the flow directions above the area, controlling the solidification device to solidify at least a part of the cross-section of the object to be produced in dependence on a reference flow direction above the area of the build area in which the respective part of the cross-section is positioned.