Apparatus for additively manufacturing of three-dimensional objects

US11446874B2 · kind B2 · utility

Assignee

• Concept Laser, GmbH · DE

Inventors

• Fabian Zeulner · Lichtenfels, DE
• Ralf Hetzel · Bad Staffelstein, DE
• Jens Stammberger · Rödental, DE
• Alexander Hofmann · Hanau, DE
• Pascal Krause · Burgkunstadt, DE
• Dagmar WOHLFARTH · Lichtenfels, DE

Key dates

• Filing date: Sep 19, 2018
• Grant date: Sep 20, 2022
• Expiry date: Mar 10, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Apparatus (17, 24) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy source, with a filter unit (4) adapted to filter residues from at least one stream of process gas (18), characterized by at least one positioning device (1, 25, 28) adapted to at least partly automatically transfer the filter unit (4) or at least a part of the filter unit between a disconnected state in which the filter unit (4) is disconnected from the stream of process gas (18) to a connected state in which the filter unit (4) is connected to the stream of process gas (18).